Actuator Sensor Interface

Transcription

H1271gti.fm Seite 1 Dienstag, 23. November 1999 4:21 16
Hardware and Engineering
CM 4-505-GS1
AS-Interface Master:
Gateway for Suconet K – Actuator Sensor Interface
09/96 AWB 27-1271-GB
1st edition 9/96
© Moeller GmbH, Bonn
Authors:
Dieter Bauernfeind, Olaf Dung, Johann Skupin
Editor
Barbara Petrick
Translators: Terence Osborn, Karin Klinke
Caution!
Dangerous electrical voltage!
Before commencing the installation
●
Disconnect the power supply of the
device.
●
Ensure that the device cannot be
accidentally restarted.
●
Verify isolation from the supply.
●
Earth and short circuit.
●
Cover or enclose neighbouring units that
are live.
●
Follow the engineering instructions
(AWA) of the device concerned.
●
Only suitably qualified personnel may
work on this device/system.
●
Before installation and before touching
the device ensure that you are free of
electrostatic charge.
●
Connecting cables and signal lines
should be installed so that inductive or
capacitive interference do not impair the
automation functions.
●
Install automation devices and related
operating elements in such a way that
they are well protected against
unintentional operation.
●
Suitable safety hardware and software
measures should be implemented for
the I/O interface so that a line or wire
breakage on the signal side does not
result in undefined states in the
automation devices.
IBM is a registered trademark of International
Business Machines Corporation.
All other brand and product names are
trademarks or registered trademarks of the
owner concerned.
●
Ensure a reliable electrical isolation of
the low voltage for the 24 volt supply.
Only use power supply units complying
with IEC 60 364-4-41 or HD 384.4.41 S2.
●
Deviations of the mains voltage from the
rated value must not exceed the
tolerance limits given in the
specifications, otherwise this may cause
malfunction and dangerous operation.
●
Emergency stop devices complying with
IEC/EN 60 204-1 must be effective in all
operating modes of the automation
devices. Unlatching the emergency-stop
devices must not cause uncontrolled
operation or restart.
●
Devices that are designed for mounting
in housings or control cabinets must only
be operated and controlled after they
have been installed with the housing
closed. Desktop or portable units must
only be operated and controlled in
enclosed housings.
●
Measures should be taken to ensure the
proper restart of programs interrupted
after a voltage dip or failure. This should
not cause dangerous operating states
even for a short time. If necessary,
emergency-stop devices should be
implemented.
All rights reserved, including those of the
translation.
No part of this manual may be reproduced in
any form (printed, photocopy, microfilm or
any otherprocess) or processed, duplicated
or distributed by means of electronic
systems without written permission of
Moeller GmbH, Bonn.
Subject to alterations without notice.
as-igb.ivz Seite 1 Donnerstag, April 24, 1997 4:57 PM
09/96 AWB 27-1271-GB
Contents
1 Introduction To The Actuator Sensor
Interface
AS-Interface system from Klöckner-Moeller
System features of the Actuator Sensor
Interface
Topology, cable length
Features of the AS-Interface
4
7
11
2 Hardware
Device overview
Mounting the device
Installing the device
Connecting the interface
13
13
15
16
16
3 Engineering
Setup of the control cabinet
Ventilation
Arranging the device in the control cabinet
Power supply
Connection to the Suconet K field bus
Screening
Preventing interferences
Lightning protection
19
19
19
20
21
22
22
26
29
4 Operating the AS-Interface Master
Setting the Suconet K address
LEDs of the AS-Interface master
LCD display of the AS-Interface master
Startup of the master
Configuration mode
Protected operating mode
Address programming in configuration mode
Address programming with
configuration errors
31
31
32
34
36
37
37
38
3
3
39
1
as-igb.ivz Seite 2 Donnerstag, April 24, 1997 4:57 PM
Contents
43
43
44
45
46
49
51
6 Error Messages and Error Handling
Suconet K error messages
Error messages via device LEDs
Error messages via the AS-Interface flags
Error messages of the LCD display
65
65
67
69
69
7 Example Programs
Example 1: Addressing the inputs/outputs
Example 2: Evaluation of error messages
Example 3: Setting parameters for
proximity switches
71
71
73
Appendix
Technical data
Index of figures
Index of tables
Index
83
83
84
85
87
77
09/96 AWB 27-1271-GB
2
5 Operation Via Suconet K
Brief description of Suconet K
Location of the data in the Suconet K range
Format of data in the read and write range
bytes 0 to 15
Control and status data
Handshake AS-Interface master ↔ PLC
Function overview and function description
as-igb.rfa Seite 3 Donnerstag, April 24, 1997 4:59 PM
1
Introduction To The Actuator Sensor
Interface
The Actuator Sensor Interface, or AS-Interface, is
designed for the connection of actuators and
sensors in the lowest field level. Cable harnesses are
no longer necessary since the AS-Interface transfers
the Actuator Sensor information serially via a twowire cable.
–
The AS-Interface optimizes the connection of the
sensors and actuators with the M12 plug
connector.
–
The AS-Interface reduces the installation work
required through the use of a bus cable with an
isolation displacement technology design.
–
The AS-Interface reduces the cabling required by
transferring the power supply for sensors and
actuators and the information on one cable at the
same time.
09/96 AWB 27-1271-GB
The AS-Interface has been specified by the ASI
association (Verein zur Förderung busfähiger
Interfaces für Sensoren und Aktuatoren), which is
responsible for the specification, standardization and
certification of the AS-Interface system, and the
distribution of the AS-Interface application. The
mechanical and electrical characteristics have been
defined, published and made available to companies
that are interested in them. The AS-Interface is a
multivendor product.
AS-Interface system
from Klöckner-Moeller
Klöckner-Moeller offers a complete AS-Interface
System for all Klöckner-Moeller programmable
controllers with a Suconet K connection. The
3
Introduction To The
Klöckner-Moeller AS-Interface products are certified
by the AS-Interface association where necessary.
This manual describes the AS-Interface master. You
will find further required components such as the
AS-Interface power supply unit, the AS-Interface
user modules with digital inputs and outputs as well
as accessories in the appropriate Klöckner-Moeller
catalogues.
System features of the
Actuator Sensor
Interface
Technical specifications have been laid down for the
electrical features, the protocol and the cabling of the
AS-Interface. Standard connection design features
include the isolation displacement technology of the
AS-Interface cable and the M12 plug connector. A
standard slave interface in the form of an ASIC
ensures that all certified AS-Interface slaves can be
connected to an AS-Interface master irrespective of
the manufacturer of the device concerned.
Cables, mechanical coding
When defining the AS-Interface, not only the
electrical values were specified, but also the cables
and the connection design. A two-wire cable with a
cross-section of 2 × 1.5 mm2 can be used.
Twisting as with twisted-pair cables or screening is
not necessary. Profile flat cables ensure user-friendly
wiring by means of the isolation displacement design
and also the reverse voltage protection of the
connection.
4
System features of the
Figure 1: Flat cable AS-Interface
Power, data, auxiliary power
With the AS-Interface the data and the required
power for the slave connection to the sensors and
low-power actuators is transferred via the two-wire
cable. The power supply of the AS-Interface has an
integrated decoupling circuit. Additional power
supply requirements can be provided via a separate
24 V DC supply for the actuators. The actuators can
thus be integrated in the Emergency-Stop circuit and
the AS-Interface does not have to be switched off as
well.
Master slave access
09/96 AWB 27-1271-GB
The AS-Interface is a “single-master system”. There
is one master and one supply unit for each
AS-Interface line. The master controls the data
exchange with the slaves. The length of the
AS-Interface message is always the same.
All configured and active slaves are addressed with
every poll cycle. During the poll of the master, data
e. g. output data, is transferred to the addressed
slave. The slave responds with return data, e. g.
inputs.
5
Introduction To The
Master pause
Master request
Slave response
Slave pause
Ø SB A4 A3 A2 A1 AØ I4 I3 I2 I1 IØ PB 1
Ø I3 I2 I1 I0 PB 1
ST
ST
EB
EB
Figure 2: AS-Interface message
6
ST
Start bit
SB
Control bit
A4...A0
Address of the slave
I4...I0
Information from master to slave and
from slave to master
PB
Parity bit
EB
End bit
The AS-Interface allows the configuration of bus and
tree topologies. The maximum length of all
AS-Interface lines must not exceed 100 m. 300 m is
possible using repeaters.
Master
Slave 1
Slave 2
Slave 3
Slave 4
Slave 5
Slave 6
Slave 7
Master
Slave 1
Slave 2
Slave 6
Slave 3
Slave 7
Slave 5
Slave 4
09/96 AWB 27-1271-GB
Figure 3: AS-Interface topology
7
Introduction To The
Data volume, parameters
Up to 124 inputs and 124 outputs with up to
31 slaves can be connected to an AS-Interface line.
The combinations of four inputs, two inputs/two
outputs and four outputs (depending on the slave)
are possible in unipolar operation for each
AS-Interface. With bi-directional operation a user
data volume of four inputs and four outputs is
possible. With each poll cycle of the master this data
volume is transferred cyclically to the slave and back
to the master.
Special slaves are also able to modify the
parameters. The “switching contact” (input) of a
proximity initiator can be a make contact or a break
contact. The data width of the parameters is 4 bit as
with the data. The parameters of a slave can be
written and read out with each poll cycle of the
master.
Slave profile
The “slave profile” has been described with the
AS-Interface specification to identify an AS-Interface
slave.
A slave profile consists of an ID code (defined by the
AS-Interface association) and the I/O code (defined
by the manufacturer). The profile is permanently
stored in the slave (EEPROM).
8
Table 1: Slave profile
AS-Interface
profile
I/
O
C
o
d
e
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
I,I,I,I
I,I,I,O
I,I,I,B
I,I,O,O
I,I,B,B
I,O,O,O
I,B,B,B
B,B,B,B
O,O,O,O
O,O,O,I
O,O,O,B
O,O,I,I
O,O,B,B
O,I,I,I
O,B,B,B
T,T,T,T
ID Code
0
1
0.1
1.1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
N
o
X.O
Reserved
R
X.O
R B.1
X.O
R D.1
X.O
P
r
o
f
i
l
e
X.F
Not assigned
V
I = input, O = output, B = bidirectional, T = tristate;
Profile: V = virgin/, R = reserved
– I/O=X. ID=
– I/O=X. ID=0
– I/O=0. ID=1
– I/O=1. ID=1
09/96 AWB 27-1271-GB
– I/O=B. ID=1
– I/O=D. ID=1
Free profiles
Remote I/O ports
Two dual-signal sensors
Single sensor with extended
control
Dual sensor with feedback
Single actuator with
monitoring
9
Introduction To The
Cycle time
With the maximum number of 31 slaves the
AS-Interface master requires 5 ms to poll all slaves.
The cycle time is reduced by approx. 0.15 ms per
slave.
Address
To address an AS-Interface slave it must have an
unambiguous address. The manufacturer’s default
address of each slave is “0”. Only the addresses “1”
to “31” are permissible during operation on the
AS-Interface line. The slaves can be addressed via
an AS-Interface addressing device or via the
AS-Interface master. A slave can be changed and
addressed automatically via the slave profile and the
default address “0” during operation.
Security
The AS-Interface has several data security functions.
The alternate pulse modulation (sin² signal)
guarantees a high level of operational security. The
AS-Interface master monitors the cable voltage and
the transferred data. The master also recognises the
failure of slaves and indicates any possible faults.
The AS-Interface telegram is short and has a fixed
length. All telegrams are checked for possible
transfer errors by the receiver in the slave and by the
master. A faulty telegram is repeated in the poll cycle
immediately.
10
Features of the ASInterface
09/96 AWB 27-1271-GB
Features of the
AS-Interface
Topology
Line or tree (as usual in the
electrical installation)
Transfer medium
Unscreened two-wire cable
for data and power
Cable length
100 m; 300 m with two
repeaters
Number of slaves
Max. 31 per line
Number of sensors/ Max. 124 sensors or
actuators
actuators, bipolar max. 124
sensors and 124 actuators
Addressing
Fixed address via master or
addressing device
Messages
Single address message of
the master with direct slave
response
Net data rate
4 bits per slave , bipolar 4 bits
sensor (input), 4 bits actuator
(output)
Cycle time
5 ms with 31 slaves
Error control
Identification and repetition of
faulty telegrams
Master functions
Cyclical scanning of all
stations (polling), cyclical data
transfer to Suconet K line
Manager function
Initialisation of the network,
of the master
identification of the stations,
acyclic assignment of
parameter values to the
stations, diagnostic of the
data transfer and the
AS-Interface slaves, error
messages to the controller,
addressing of slaves
11
12
09/96 AWB 27-1271-GB
2
Device overview
Hardware
The CM 4-505-GS1 is a Gateway Suconet K/
AS-Interface and was developed as AS-Interface
master M1. The user data is transmitted to the
AS-Interface master via a Suconet K cable. The
CM 4-505-GS1 transfers the data to the
AS-Interface.
Figure 4 shows an overview of the operator and
display elements of the CM 4-505-GS1.
09/96 AWB 27-1271-GB
Warning!
Ensure that you are free of electrostatic charge
before touching the device. Electrostatic
discharges may destroy the device.
13
Hardware
a
b
Suconet K
power
mode
Suconet
config err
h
U ASi
ASi aktiv
prg enable
set
prj mode
+
ASi
+
CM4-505-GS1
-
c
d
g
f
e
d
Figure 4: Device overview
a Mode button
b Set button
c Sub D Suconet K connection
d Function earth connection
e LCD display
f AS-Interface connection
g 30 V DC power supply connection
(from AS-Interface supply unit)
h Status LEDs
14
Mounting the device
Mounting the device
1.
3.
2.
Figure 5: Mounting on top-hat rail acc. EN 50 022
1. Locate the device on the top-hat rail so that the
upper edge of the top-hat rail snaps into position.
2. Push the device against the top-hat rail.
3. Let the device snap into position.
M4
M4
+
-
+
-
09/96 AWB 27-1271-GB
Figure 6: Screw mounting
15
Hardware
The device can be installed vertically and
horizontally.
+
-
Installing the device
+
-
-
-
+
+
Figure 7: Possible mounting options
Connecting the
interface
1.
+2.
+ 2.
Figure 8: Connecting the Suconet K interface
1. Fit the Sub D plug connector on the Suconet K
interface.
2. Tighten the screws.
16
Connecting the interface
Warning!
The valid safety and accident prevention
regulations must be observed. Machines and
plants which are equipped with the
CM 4-505-GS1 are subject to the relevant EN and
IEC standards (also VDE 0200, Part 410).
Warning!
Ensure that the low voltage is reliably isolated
when using 24 V DC supplies. Only supply units
produced according to IEC 364-4-41
(also VDE 0200, Part 410) must be implemented.
Warning!
Emergency-stop devices must be functional in all
operating modes according to EN 60 204/
IEC 204 (VDE 0113). Unlocking the EmergencyStop device must not cause an uncontrolled or
undefined restart.
09/96 AWB 27-1271-GB
The AS-Interface power supply must meet the
PELV protection measure in accordance with
IEC 364-4-41.
17
18
09/96 AWB 27-1271-GB
3
Setup of the control
cabinet
Engineering
The arrangement of the components in the control
cabinet has an essential influence on the error-free
functioning of plants and machines. When planning
and designing the system ensure that the power
section and control section are located separately.
The power section includes
–
contactors
–
coupling modules
–
transformers
–
frequency inverters
–
current converters
–
DC supply units
For effective protection against electromagnetic
interference, arrange the components separately,
according to their interference behaviour and power
rating. Use dividers to reduce interference in small
control cabinets.
Ventilation
Keep a distance of at least 5 cm between the
CM 4-505-GS1 and the enclosure to ensure
sufficient ventilation of the device
09/96 AWB 27-1271-GB
The values stated in the Technical data (see
Appendix) must be observed.
19
Engineering
Arranging the device in
the control cabinet
a
b
a
c
Figure 9: Horizontal arrangement
a At least 5 cm clearance
b Power section
c Cable duct
a
a
a
b
c
Figure 10: Vertical arrangement
a At least 5 cm clearance
b Power section
c Cable duct
20
Power supply
Power supply
The CM 4-505-GS1 is supplied by the AS-Interface
power supply.
L1
N
PE
2.5 mm2
max. 20 cm
K1
F1
K1
CM 4-505-GS1
L1
G1
SN 4-024-DA7
L1
N
G2
Screen
A1
ASi +
N PE
24 V DC
ASi
–
+
-
+
ØV
-
max. 1 m
K2
K3
K4
AS-Interface
Auxiliary power Outputs
Figure 11: CM 4-505-GS1 supply and AS-Interface
connection, auxiliary power of the outputs with EmergencyStop disconnection
09/96 AWB 27-1271-GB
K2, 3, 4
Enable control voltage Emergency-Stop
21
Engineering
Connection to the
Suconet K field bus
If the CM 4-505-GS1 is connected as first or last
device on the Suconet K bus, implement a bus
terminating resistor of 120 Ω/0.25 W between TA/RA
and TB/RB.
GND 5
4
TA/RA 3
2
120
9
8
7
TB/RB
6
1
Figure 12: Bus terminating resistor
Screening
22
Connect the Suconet K screen via a contact clip,
e. g. ZB 4-102-KS1, to the earth potential. The
distance between the earthing point and the
CM 4-505-GS1 plug connector must be as short as
possible. Figures 13 to 15 show the possible
mounting options when using the contact clip.
Screening
1.
a
b
15 mm
e
mod
er
pow t
ne
CO
SU err
ig
conf Si
UA
tiv
i ak
AS able
en
prg ode
m i
prj AS
set
4-5
CM
-G
05
S1
c
d
2.
3.
e
M4
Figure 13: Screening of Suconet K via contact clip on
mounting plate
1. Remove 15 mm of the cable sheath
2. Open the contact clip
3. Fit the contact clip, press together and screw on
mounting plate
a Mounting plate
09/96 AWB 27-1271-GB
b CM 4-505-GS1
c Suconet K cable
d Suconet K screen connection (ZB 4-102-KS1 contact
clip) on metallic (galvanized) mounting plate
e Earth connection mounting plate
23
Engineering
1.
2.
a
b
15 mm
e
mod
er
pownet
CO
SU err
ig
conf Si
UA
tiv
i ak le
S
A ab
en
prg
e
mod
prj ASi
d
c
set
15
mm
Cu 2,5 mm 2
M4
4.
f
e
Figure 14: Screening Suconet K via contact clip to earth
terminal (top-hat rail)
1.
2.
3.
4.
Remove 15 mm of the cable sheath
Open the contact clip
Screw contact clip with the cable lug
Fit earth terminal
a Mounting plate
b CM 4-505-GS1
c Suconet K cable
d Suconet K screen connection (ZB 4-102-KS1)
f Earth terminal
24
Screening
1.
a
2.
b
15 mm
e
mod
er
pow t
ne
CO
SU err
ig
confASi
U
tiv
i ak
AS able
en
prg ode
m Si
A
prj
d
set
4-5
CM
-G
05
S1
c
f
e
Figure 15: Screening for Suconet K using contact clip and
snap fastener
1.
2.
3.
4.
Remove 15 mm of the cable sheath
Open contact clip
Screw contact clip with snap fastener
Snap on top-hat rail
a Mounting plate
b CM 4-505-GS1
09/96 AWB 27-1271-GB
c Suconet K cable
d Suconet K screen connection (ZB 4-102-KS1)
f Snap fastener BT 432
25
Engineering
Preventing
interferences
Cabling and wiring
Cables are divided into the following categories:
–
Power cables (e. g. power cables which carry
high currents, or cables connected to current
transformers, contactors, solenoid valves)
–
Control and signal cables (e. g. digital input
cables)
–
Measuring and signal cables (e. g. field bus
cables)
Attention!
The distance between power/control and signal
cables must always be as large as possible. This
will prevent capacitive and inductive coupling
interference. If separate cable routing is not
possible, always screen the interference cable.
Ensure that the cables are routed correctly inside
and outside the control cabinet to keep interference
to a minimum:
E Avoid long, parallel sections of different power
levels.
E Always separate AC cables from DC cables.
E Keep the following distances:
– at least 10 cm between power and signal cables
– at least 30 cm between data and analogue
cables
26
Preventing interferences
E Lay incoming and outgoing cables of one circuit
in parallel so that the sum of all currents is zero.
The fields will be compensated due to the inverse
current flow.
c
a
b
Figure 16: Separated cable ducts for AC and DC voltage
a The greater the distance the better the effect
b Cable duct for 24 V DC
09/96 AWB 27-1271-GB
c Cable duct for 230 V, 400 V AC
27
Engineering
a
b
c
d
e
f
a
g
bde
f
Figure 17: Separated cable routing of power and signal
cables
28
Legend of Figure 17:
a Cover
b Communication cables
c Cable duct
d Measuring cables, analogue cables
e Control cables
f Power cables
g Continuous divider
Suppression of interference sources
Always observe the following principle:
Implement all suppressor circuits as close as
possible to the interference source (contactor, relay,
solenoids).
Note!
All switched inductive loads should always be
provided with a suppressor circuit.
External lightning protection
09/96 AWB 27-1271-GB
All cables routed outside a building must be
screened. Metallic conduits are recommended for
this.
Use protection elements against overvoltages, such
as for example varistors or other overvoltage
arresters. These measures should be implemented
as close as possible to the point where the cables
concerned enter the building but at least at the entry
to the control cabinet.
29
Engineering
Internal lightning protection
The internal lightning protection includes all
measures that reduce the effects of the lightning
current and its electrical and magnetic fields on
metallic components and electrical installations
inside buildings. These are:
–
lightning protection potential equalisation
–
screening
–
use of overvoltage protection devices
Note!
You will find further information in the guidebook
TB 27-001-GB, “Electromagnetic Compatibility
(EMC) of Automation Systems”.
30
4
Setting the Suconet K
address
Operating the AS-Interface Master
The two buttons “set” and “mode” are located on the
front plate of the CM 4-505-GS1. The use of these
buttons is described in the following chapters.
Setting the
Suconet address
Press set and mode > 5s
Display current address
Address OK?
yes
Press mode > 5s
no
set => Address = Address + 1
Selected address =
program. Address
and
Suconet connection
OK
yes
End
no
config err
Suconet
LCD = 40
09/96 AWB 27-1271-GB
Figure 18: Setting the Suconet K address
31
Operating the AS-Interface
Master
The Suconet K address is set as shown in Figure 18.
Pressing the “mode” and “set” buttons
simultaneously for more than 5 s initiates the address
setting mode. The current bus address appears on
the LCD display. The default address of the
CM 4-505-GS1 is “2”.
Press the “set” button to increase the address by one
value. If the required address has been reached, it
can be accepted and saved retentively by pressing
the “mode” button for more than 5 s.
The LCD display goes out and the address setting is
completed if Suconet K is connected and ready for
operation and the set address matches the address
programmed in the master.
If one of the requirements is not met, this is indicated
by the number “40” in the LCD display and the red
LED “config err” going on. The green “Suconet” LED
flashes at a frequency of 2 Hz if there is a difference
between the address programmed in the master and
the address set in the CM 4-505-GS1. The green
“Suconet” LED does not flash regularly if Suconet is
not connected or not ready for operation.
LEDs of the
AS-Interface master
32
The CM 4-505-GS1 has the following LEDs on the
front plate:
power
The master is sufficiently supplied
with voltage.
Suconet
The communication via the serial
interface to Suconet K is active.
LEDs of the AS-Interface
master
config err
A configuration error is present:
– At least one configured slave is
missing,
or
– at least one slave which has not been
configured was detected on the
AS-Interface
or
09/96 AWB 27-1271-GB
– the actual configuration does not
match the set configuration with at
least one configured and detected
slave (inverted AS-Interface flag
“Config OK”)
U ASi
The AS-Interface line is sufficiently
supplied with voltage (inverted
AS-Interface flag “APF/not APO”)
ASi active
Normal operation is active
(AS-Interface flag “Normal Operation
Active”)
prg enable
Automatic address programming is
possible (AS-Interface flag “Auto
Address Available”) Exactly one slave
is missing in the protected operating
mode. If this slave is replaced by a
slave with the same configuration with
the address “Zero”, the master
programs this slave to the new address
and the configuration error is rectified.
prj mode
The master is in Configuration mode
(AS Interface flag “Configuration
Active”)
33
Master
LCD display of the
AS-Interface master
When in its basic setting, the configuration mode
shows the addresses of all detected AS-Interface
slaves at a rate of two addresses each second. An
empty display means an empty list of the detected
slaves (LDS = List of detected slaves).
In the basic state of the protected operating mode
the display is empty or shows the address of an
incorrect assignment.
The display of a slave address has a different
meaning when programming addresses manually
(see sections Setting the Suconet address or
Address programming in configuration mode).
All displays that are higher than 31 and thus cannot
be interpreted as a slave address are status or error
messages of the master. They have the following
meaning:
34
40
The AS-Interface master is in offline phase.
41
The AS-Interface master is in the detection
phase.
42
The AS-Interface master is in activation
phase.
43
The AS-Interface master starts protected
operation.
66
Faulty I/O length.
70
Hardware error: The EEPROM in the
AS-Interface master cannot be written.
72
Hardware error: The Interrupt flag of the PIC
processor cannot be deleted.
73
Hardware error: The Interrupt flag of the PIC
processor is not set.
74
Hardware error: Checksum error in the
EPROM
09/96 AWB 27-1271-GB
LCD display of the ASInterface master
80
A slave with the address “Zero” is detected.
The attempt was made to exit the
configuration mode with connected slave
“Zero”.
81
General error when modifying a slave address.
82
Operation via the buttons on the front plate
has been locked. Accesses to the master are
only possible from the host computer via the
serial interface until the next restart of the
master.
88
Display test when addressing the AS-Interface
master.
90
A slave with address “Zero” is not present.
This error occurred when programming slave
addresses manually (see section Address
programming in the configuration mode).
91
The destination address is already assigned.
The error occurred during address
programming in the configuration mode (see
section Programming/Deleting slave address).
92
The new slave address could not be set.
93
The new address could only be saved
temporarily in the slave.
94
The slave has faulty configuration data. The
error occurred with address programming in
the protected operating mode (see section
Address programming with configuration
errors).
35
Master
95
The target address has already been
assigned.
The error occurred in the protected operating
mode. The attempt was made to program a
slave with address “Zero” to the address
displayed as configuration error. This error,
however, was caused by a redundant slave
but not by a missing slave.
Error messages see chapter 6, Error messages and
error handling.
Startup of the master
36
After the startup all segments of the digital display
and all LEDs are switched on for approx. 1 second
(self-test). The LEDs then show the status of the
corresponding flags. The status of the master is
shown on the LCD display after the AS-Interface
master specification. The following applies:
40
Offline phase:
The AS-Interface master is initialised and no
data exchanges on the AS-Interface takes
place. The master remains in the offline phase
if the AS-Interface circuit is not sufficiently
supplied with voltage (“U ASi” not lit).
41
Detection phase:
Startup operation is initiated by searching for
the slave on AS-Interface. The master remains
in the detection phase until at least one slave
is detected.
42
Activation phase:
Status at the end of the startup operation
where the parameters are transferred to all
connected and detected AS-Interface slaves.
The access to the data connections in the
AS-Interface slaves is thus enabled.
Configuration mode
43
Configuration mode
Starting normal operation:
In normal operation the AS-Interface master
can exchange data with all active slaves. The
master transfers management telegrams,
searches and activates recently connected
slaves. During normal operation the maximum
cycle time is 5.
All detected slaves are activated in the configuration
mode, even when the set and actual configurations
are different. The master is switched to the
configuration mode by pressing the “mode” button
for at least five seconds. The yellow “prj mode” LED
is lit during the configuration mode.
All slaves entered in the LDS (List of detected slaves)
are displayed in succession on the LCD display at a
rate of two a second. An empty display means an
empty LDS, i. e. no slaves were detected. All
detected slaves, except the “Zero” slave are
activated in the configuration mode.
09/96 AWB 27-1271-GB
Protected operating
mode
Changing to protected operating mode
Exit the configuration mode by pressing the “mode”
button. The master exits the configuration mode by
pressing the button for more than five seconds. The
actual configuration is copied into the set
configuration at the same time. A shorter press of the
button will activate protected mode without copying
the actual configuration into the set configuration.
37
Master
The configuration mode cannot be exited if a slave
with address “Zero” is detected on the AS-Interface.
In the protected mode only those slaves are
activated which are entered into the List of projected
slaves, the LPS, and whose set configuration data
matches the actual configuration data.
Configuration errors in protected operating mode
The digital display is not activated in protected mode
if there are configuration errors. Otherwise, in the
case of a faulty assignment, the lowest address will
be indicated. A faulty assignment is present if a slave
is detected or configured, i. e. if the slave is entered
in the LDS or LPS, but cannot be activated. Pressing
the “set” button briefly will display the next higher
address on the digital display with a faulty
assignment.
Address programming
in configuration mode
Programming slave address (assigning a free
address to a slave with address “Zero” )
In the configuration mode the addresses of all
detected slaves are indicated in succession.
Pressing the “set” button briefly will display the next
higher free operating address. Each further press of
this button shows the next free address accordingly.
Pressing the button for more than five seconds will
select the currently displayed address as destination
address. This address will then flash. The master is in
programming status. Press the “set” button again to
reprogram the connected slave with address “Zero”
to the currently flashing address.
38
If an error occurs, it is indicated with the appropriate
error code as described in chapter 6, Error messages
and error handling, otherwise the LDS is indicated.
Delete slave address (assigning a “Zero” address
to a detected slave)
The addresses of all detected slaves are indicated in
the configuration mode in succession. Pressing the
“set” button briefly will cause the master to indicate
the next free address. If the button is pressed for
more than five seconds, the “00” display will appear
and the previously displayed slave will be
reprogrammed to address “Zero”. The LDS is shown
again when the button is released.
Address programming
with configuration
errors
Automatic address programming
If a slave fails due to a fault, it can be replaced with a
device of the same design that has been assigned
the address “Zero”. The automatic address
programming of the AS-Interface master detects the
faulty slave and programs the new slave
automatically to the address of the faulty device.
The following requirements must be fulfilled for
automatic programming:
1. The AS-Interface master must be in the protected
operating mode
2. The enable flag “auto prog” must be set.
09/96 AWB 27-1271-GB
3. No more than one slave cannot be detected.
39
Master
The AS-Interface indicates whether these conditions
have been fulfilled via the “prg enable” LED. If it
detects a slave with the address “zero”, it changes its
operating address to that of the faulty slave.
Automatic address programming is not possible if
the two slaves have different configuration data, i. e.
have different designs.
Manual address programming
Several slaves cannot be replaced automatically by
the AS-Interface master if they fail. In this case, the
addresses of the new slaves must be set manually. If
this cannot be carried out via the serial interface, the
slave addresses can be modified using the buttons
and display.
In protected operating mode incorrect address
allocations are indicated (see chapter 6, Error signals
and Error Handling). Pressing the “set” button
quickly several times will cause all incorrect
allocations to be displayed in succession.
Holding this button depressed for at least five
seconds will cause the currently displayed address
to be selected as the potential destination address
and the display starts to flash.
If the faulty slave (flashing address) was replaced by
a slave with the address “zero”, the new slave can be
programmed to the flashing address by pressing the
appropriate button. For this the configuration data of
the slave concerned must match the configuration
data entered for the flashing address.
40
09/96 AWB 27-1271-GB
If the change of address is successfully completed,
the next faulty allocation is displayed and the display
is cleared. An error code will otherwise be displayed,
as described in chapter 6, Error Messages of the
LCD Display.
41
42
09/96 AWB 27-1271-GB
5
Brief description of
Suconet K
Operation Via Suconet K
Suconet K is the name of the field bus system of
Klöckner-Moeller. This system uses the cyclical
master/slave polling procedure. The protocol allows
the transfer of data at speeds of 187.5 or 375 Kbaud
depending on the stations used. The system uses the
RS 485 bus interface.
Suconet K uses a line topology and twisted pair twowire cables as the transmission medium, allowing up
to 8 or 30 slaves per bus line depending on the
master configured. The permissible telegram length
for each slave is fixed. With different slaves,
however, this may vary. Data security can be
implemented using vertical or horizontal parity, and
either a CRC 16 or 32 data security procedure can be
implemented, depending on the master used.
The maximum length of the line depends on the baud
rate configured:
187.5 Kbaud:
600 m
375 Kbaud:
300 m
09/96 AWB 27-1271-GB
With Suconet K the data volume of the slaves may be
variable. The CM 4-505-GS1 requires 20 bytes of
read data, 20 bytes of write data and 1 byte (Read)
for the Suconet K status byte.
43
Location of the data in
the Suconet K range
The CM 4-505-GS1 is set as an active Suconet K
slave with 20 bytes of read data, 20 bytes of write
data and one status byte. Data access to the first
16 read/write data 0 ... 15 bytes can be implemented
via the operands I.. or Q.. (bit, byte or word), as well
as the operands SD... or RD... (PS 4-201-MM1). The
read or write bytes 16 to 19 are only addressable via
the operands RD.. or SD.. (bit, byte or word).
The following protocol specifications apply to the
transfer of AS-Interface data via Suconet K:
From the point of view of the Suconet-K master the
AS-Interface sensor is an input and is therefore
addressed as a read byte in which bits 0 to 3 have
valid data. The AS-Interface actuator is a write byte
in which bits 00 to 3 contain output data.
Example:
The following operands are set for a
CM 4-505-GS1connected to Suconet K line 1 with
station address 1:
Output data, data to the AS-Interface actuators:
SD, SDB 1.1.0.0(.0), SDW 1.1.0.0
to
SD, SDB, 1.1.0.15(.0), SDW 1.1.0.14
and/or
QB, QW 1.1.0.0(.0)
to
Q, QB 1.1.0.15(.0), QW 1.1.0.14
44
Format of data in the read
and write range bytes
0 to 15
Input data, data from the AS-Interface sensors:
RD, RDB, RDW 1.1.0.0(.0)
to
RD, RDB, RDW 1.1.0.15(.0)
and/or.
I, IB, IW 1.1.0.0(.0)
to
I, IB, IW 1.1.0.15(.0)
Control and status data for the AS-Interface master
must be written to the operand addresses SD, SDB
1.1.0.16(.0...7) to 19(.0...7); the acknowledge data of
the AS-Interface master to the PLC is available under
RD, RDB 1.1.0.16(.0...7) to 19(.0...7).
The data and control addressing for other
AS-Interface masters is defined in the same way.
Remember that the first two operand indices always
specify the Suconet K line and station address:
09/96 AWB 27-1271-GB
Format of data in the
read and write range
bytes 0 to 15
The CM 4-505-GS1 AS-Interface master is
responsible for the data exchange between up to 31
AS-Interface slaves. Since the actual user data
volume per AS-Interface slave must not exceed
4 bits, the input/output data is packed for optimum
utilisation of the transmission protocol. This is shown
in the following diagram:
45
Table 2: Packing diagram for the input/output data
Bit
Input
Output
IB-/QB Byte
AS-i
AS-i
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
7
I4
Q4
6
5
4
I3
I2
I1
Q3
Q2
Q1
Slave 2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
free
3
I4
Q4
2
1
I3
I2
Q3
Q2
Slave 1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
Bytes 16 and 19 have the following meanings
depending on the communication direction involved:
Send direction PLC → CM 4-505-GS1
Byte 16, Flag
Function 18, 19, 21 and “Disable operation”:
46
0
I1
Q1
SDBx. x. x. 16
AS-Interface master is
Online = 0.
Master running with
data exchange= 0.
Bit 2
Automatic addressing possible = 0
Bit 3
Operation of pushbutton not
disabled = 0
Byte 17, Function
Bit 0...4: Function number: see Function Overview
and Function Description.
Bit 0
Bit 1
Byte 18, AS-Interface slave address
Bit 0...4: Address with function 3, 4, 5, 6, 8, 9, 11, 20,
22
09/96 AWB 27-1271-GB
Byte 19, AS-Interface slave parameters, address,
data, config
Bit 0...3: Parameter P0...P3 with function 3, 5, 8, 20,
22
47
Receive direction PLC ← CM 4-505-GS1
Byte 16, Flags of sequence control (1 = active)
Bit 0 Config_OK: No configuration error present.
Bit 1 LES.0: Slave with address zero present.
Bit 2 Auto_prog: Automatic programming
permitted.
Bit 3 Auto_prog_available: Automatic programming
possible.
Bit 4 Config_active: Configuration mode active.
Bit 5 Normal mode_active: Normal operation
active.
Bit 6 APF/not APO: Voltage drop on AS-Interface.
Bit 7 Offline_ready: Offline phase active.
Byte 17, Handshake function
Bit 0...4: Function number see Function Overview
and Function Description
Bit 7: Status bit 0 = executed, 1 = not executed
Byte 18: Address of slave as acknowledge
Bit 0...4
Byte 19: Parameter acknowledge, Configuration
data
Bit 0...3 Acknowledge according to selected function
48
Handshake AS-Interface
master ↔ PLC
Handshake
AS-Interface
master ↔ PLC
The AS-Interface master can initiate several different
functions. The standard setting is for reading and
writing input and output data respectively. Other
functions are described in the following section.
Suconet K acts as the logical interface between the
AS-Interface master and the PLC. All functions are
handled via the 2 × 20 byte data range.
The PLC is used to initiate the function required. The
standard functions such as read and write jobs for
I/O data (byte 0 to 15 in the read/write range) as well
as the reading of the AS-Interface flag on byte 16 are
transferred without any function being selected.
Other functions such as setting parameters must be
initiated. Only one of these functions can be
processed at any time. Bytes 17, 18, 19 in the read/
write range are reserved for these separate
functions.
The time characteristics of the handshake sequence
is shown in Figure 19. The PLC specifies the number
of the required function via the Write byte 17
(numbers are shown in Table 3, AS-Interface
functions). Write byte 18 and 19 contain the address
and the parameters (when necessary).
09/96 AWB 27-1271-GB
The AS-Interface master recognises the function and
indicates the execution of the function via Read
bytes 17, 18, 19. Read byte 17 always shows the
function number. If bit 7 of this byte is set to 1
(value = 128 dec.), this means that the function was
not executed correctly. The data indicated is thus
invalid. The time behaviour is edge-triggered.
49
Write byte 17:
Function
Write byte 18:
Address
Write byte 19:
Parameter
Read byte 17:
Function + Status bit 7
Read byte 18:
Address
Read byte 19:
Parameter
t
Figure 19: Time characteristics of the handshake
PLC ↔ CM4-505-GS1
50
Function overview and
function description
The following description is an overview of the
AS-Interface functions available. (Source: Complete
ASI-Specification V 2.0)
Table 3: AS-Interface functions
Number
of
function
0, 5
0, 5
3
4
5
6
7
8
9
10
09/96 AWB 27-1271-GB
11
Request
Data transfer/
purpose
Image, Status=Read_IDI ( )
Status=Write=_ODI
Status=Set_Permanent_Parameter
(Addr, Param)
Param, Status=Get_Permanent_
Parameter (Addr)
Status, RParam=Write_Parameter
(Addr, Param)
Status, Param=Read_Parameter (Addr)
Status=Store_Actual_Parameter ( )
Status=Set_Permanent_
Configuration (Addr, Config)
Status.Config=Get_Permanent_
Configuration (Addr)
Status=Store_Actual_Configuration ( )
IDI → Host
Host → ODI
Host → PP [x]
12
13
14
15
0,5
17
Status, Config=Read_Actual_
Configuration (Addr)
Status=Set_LPS (List 31)
Status, List 31=Get_LPS ( )
Status, List 31=Get_LAS ( )
Status, List 32=Get_LDS ( )
Status, Flags=Get_Flags ( )
Status=Set_Operation_Mode (Mode)
18
Status=Set_Offline_Mode (Mode)
19
Status=Set_Data_Exchange_Active
(Mode)
Status=Change_Slave_Address
(Addr 1, Addr 2)
20
Only
Each
slave in slave
LAS
x
x
Config
mode
x
x
x
PP [x] → Host
x
Host → PI [x] - x
→ Slave [x]
PI [x] → Host
PI → PP
Host →
PCD [x]
PCD [x] → Host
x
x
x
CDI → PCDLDS
→ LPS
CDI [x] →
x
x
Host
Host → LPS
LPS → Host
LAS → Host
LDS → Host
Flags → Host
Host → OfflineFlag
Host → OfflineFlag
Host → DE-Flag
Host → Slave
Always
x
x
x
x
x
x
x
x
x
51
Number Request
of
function
21a
Status=Set_Auto_Address_ Enable
(Mode)
21b
Mode=Get_Auto_Address_Enable ( )
22
Status, response=Execute_
Command (Addr, Info)
Data transfer/
purpose
Only
Each
slave in slave
LAS
Config
mode
Always
Host → AE-Bit
Host ← AE-Bit
Host → Slave
x
Abbreviations:
IDI
HOST
ODI
PP
PI
PCD
CDI
PCD LDS
LPS
LAS
LDS
DE-Flag
AE-Bit
Input Data Image
here: PLC
Output Data
Permanent Parameter
Parameter Image
Permanent Configuration Data
Configuration Data Image
Permanent Configuration Data List of
Detected Slaves
List of Projected Slaves
List of Activated Slaves
List of Detected Slaves
Data Exchange Flag
Address Enable Bit
The AS-Interface specification V 2.0 provides
function M1 for the AS-Interface master used here.
The following paragraphs describe the functions of
the AS-Interface.
52
Functions 1 and 2:
Fulfilled implicitly
Function 3: Set permanent parameter
This function causes the AS-Interface master, to
retentively save in the permanent parameter field the
parameter value in byte 19 under the address
specified in byte 18. The address from byte 18
specifies the field offset that corresponds at the
same time to the AS-Interface slave address.
Command: PLC → CM 4-505-GS1
Byte 17:
3
Byte 18:
AS-Interface slave address
[1 ≤ Addr. ≤ 31]
Byte 19:
Parameter for AS-Interface slave
09/96 AWB 27-1271-GB
Acknowledge: CM 4-505-GS1 → PLC
Byte 17:
3 = Command executed
1 = Command invalid
Byte 18:
Sent address as acknowledge,
otherwise handshake incomplete
53
Function 4: Fetch permanent parameter
The PLC requests from the AS-Interface master the
parameter value stored in the permanent parameter
field under the address specified in byte 19.
Byte 17:
4
Byte 18:
[1 ≤ Addr. ≤ 31]
Byte 19:
0
Byte 17
132 = Command invalid
Byte 18:
Byte 19:
Parameter of the AS-Interface
slave [1 ≤ Addr. ≤ 31]
Function 5: Write parameter
The PLC supplies the AS-Interface master with the
parameter value in byte 19. On the one hand this
should be stored in the parameter image
(PI = Parameter Image) under the address specified
in byte 18, and then passed on to the corresponding
AS-Interface slave. This function can be used for
slaves that are detected as active and are as such
entered in the list of active slaves (LAS = List of active
slaves).
54
Byte 17:
5
Byte 18:
[1 ≤ Addr. ≤ 31]
Byte 19:
Parameter for AS-Interface slave
Byte 17:
Byte 18:
Byte 19:
Parameter of the AS-Interface slave
[1 ≤ Addr. ≤ 31]
Function 6: Read parameter
parameter value of the PI with an offset address
specified in byte 18.
Byte 17:
6
Byte 18:
[1 ≤ Addr. ≤ 31]
Byte 19:
0
09/96 AWB 27-1271-GB
Byte 17:
Byte 18:
Byte 19:
Parameter of the AS-Interface slave
[1 ≤ Addr. ≤ 31]
55
Function 7: Save current parameter
The PLC causes the AS-Interface master to transfer
the content of the PI to the Permanent parameter list
(PP) and thus to declare it as retentive. The default
values of the PP of a new AS-Interface master is
FF(16).
Byte 17:
7
Byte 18, 19 not required
Byte 17:
7 Command executed
Function 8: Set permanent configuration
the configuration of an AS-Interface slave specified
in byte 18 to the permanent data list (PCD) and save
retentively. The default value of the PCD of a new
AS-Interface master is FF(16).
Byte 17:
8
Byte 18:
[1 ≤ Addr. ≤ 31]
Byte 19:
Configuration data
56
Byte 17:
Byte 18:
Byte 19:
Configuration data, Echo
Function 9: Fetch permanent configuration
retentive configuration data for the address specified
in byte 18. This data comes from the PCD field.
Byte 17:
9
Byte 18:
[1 ≤ Addr. ≤ 31]
Byte 17:
Byte 18:
Byte 19:
Configuration data
The configuration data of the AS-Interface slave
consists of two parts: the identification code and the
I/O configuration. Since both parts only require
4 bits, they are transferred together in one byte with
the lower nibble containing the I/O configuration and
the upper nibble the identification code.
7
6
5
09/96 AWB 27-1271-GB
ID code
00 to 0F(16)
4
3
2
1
0
I/O configuration
00 to 0F(16)
57
Function 10: Save current configuration
the content of the current configuration data image
(CDI) without a value for slave 0 to the PCD field and
transfer the LAS to the LPS. The parameter data
value is set to the default value F(16) for all slaves not
in the LPS. This function can only be executed in the
configuration mode (see function 17)
Byte:
10
Byte 18, 19 not required
Byte 17:
Function 11: Read current configuration
parameter value that is located under the address
specified in byte 18 in the CDI of the AS-Interface
master.
Byte 17:
11
Byte 18:
[1 ≤ Addr. ≤ 31]
58
Byte 17:
Byte 18:
Byte 19:
Configuration data
Function 12: Send list of configured slaves (LPS)
The PLC sends the 15-byte list of configured slaves
to the AS-Interface master which stores them
retentively. This function can only be executed in
configuration mode (see function 17). When the
AS-Interface master has accepted the list, it switches
to offline mode in order to reset all slaves concerned.
The default value for the LPS of a new AS-Interface
master is 0.
Byte 17 ⇒ 12
Byte 0–15 per nibble:
no slave
00(16):
Configure odd slave numbers
0F(16):
Configure even slave numbers
F0(16):
Configure all slave numbers
FF(16):
09/96 AWB 27-1271-GB
Byte 17:
59
Function 13: Fetch the list of configured slaves
(LPS)
The PLC requests the LPS from the AS-Interface
master. The AS-Interface master sends this list in
nibble format packed in bytes 0 to 15 of the input
data range.
Byte 0–15:
Output values from user program cycle
Byte 17:
13
Byte 17:
Byte 0–15:
List of configured slaves
Function 14: Fetch list of active slaves (LAS)
The PLC requests the LAS from the AS-Interface
master. The AS-Interface master sends this list in
nibble format packed in bytes 0 to 15 of the input
data range. If there are no configuration errors,
i. e. bit 0 of the flag (Byte 16) in the input range = 1,
LPS and LAS are identical.
Byte 0–15:
Output values from user program cycle
Byte 17:
14
60
Byte 17:
Byte 0–15:
List of active slaves
Function 15: Fetch list of detected slaves (LDS)
The PLC requests the list of detected slaves (LDS)
from the AS-Interface master. The AS-Interface
master sends the list in nibble format packed in bytes
0 to 15 of the input data range.
Byte 0–15:
Output values from the user program
cycle
Byte 17:
15
Byte 17:
Byte 0–15:
List of detected slaves
Function 16: Fetch flags
09/96 AWB 27-1271-GB
This function is fulfilled implicitly, i. e. a current flag
(byte 16) is always present in the input range of the
Suconet K data flow.
61
Function 17: Set operating mode
This function enables the PLC to switch the
AS-Interface master to protected mode (Byte 19 = 0)
or configuration mode (Byte 19 = 1).
Functions 8, 10, 12, 20 and 22 can only be executed
in configuration mode.
Byte 17:
17
Byte 19:
= 0: protected mode
≠ 0: configuration mode
Byte 17:
Byte 19:
= 0: protected mode
≠ 0: configuration mode
Function 18, 19 and 21 are flag related and can be
initiated without any special calls:
Function 18
Byte 16, Bit 0 = 0: Online mode
= 1: Offline mode
Function 19
Byte 16, Bit 1= 0: data exchange between
AS-Interface master and
slave active
= 1: data exchange between
AS-Interface master and slave
inactive.
Caution!
Outputs retain their last value.
62
Function 21a
Byte 16, Bit 2= 0: Automatic addressing possible
= 1: Automatic addressing not possible
Function 21b
Byte 16, Bit 3= 0: Operation of both buttons on the
AS-Interface master enabled
= 1: Operation of both buttons on the
AS-Interface master disabled
Function 20: Change slave address
The PLC causes the AS-Interface master to change
the address specified in byte 18 to the new slave
address specified in byte 19.
Byte 17:
20
Byte 18:
Old, previous AS-Interface slave
address
Byte 19:
New AS-Interface slave address to be
assigned
Byte 17:
09/96 AWB 27-1271-GB
Byte 19:
New AS-Interface slave address or
error code to be assigned
63
Functions of write byte 16
These functions are generated by simply
manipulating byte 16 and have no independent
function code in byte 17.
Function 18
Bit 0 of byte 16: Switch AS-Interface master to
operating mode
0 = Online
1 = Offline
Acknowledge, read byte 16: Bit 5 = 0, Bit 7 = 1
Function 19
Bit 1 of byte 16:
0 = Master running with data exchange
1 = Master stops data exchange
Acknowledge: none
Function 21
Bit 2 of byte 16:
0 = Automatic addressing possible
1 = Automatic addressing not possible
Acknowledge, read byte 16: Bit 2 = 0, Bit 3 = 0
Bit 3 of byte 16:
0 = Operation of both buttons on AS-Interface
master enabled
1 = Operation of both buttons on AS-Interface
master disabled
Bit 4...7 free
64
6
Suconet K error
messages
Error Messages and Error Handling
Suconet K provides a number of different error
messages so that it can be monitored online.
The status of the Suconet K master can be read
according to the type used.
Example: PS 4-201-MM1
The PS 4-201-MM1 diagnostics bit contains the
“Diagnostics remote configuration” bit (DDK; Bit 2)
L
S
IS 0.2
M 100.1
"DDKerror
"Error in Suconet K section detected
09/96 AWB 27-1271-GB
For more accurate troubleshooting the diagnostics
bits on the CM 4-505-GS1 can also be scanned.
65
Error Messages and Error
Handling
The following bits of the CM 4-505-GS1 are
accessible:
Table 4: Explanation of diagnostics bits
Bit
1
2
4
5
6
7
Status
0
1
0
1
0
1
0
1
0
1
0
1
Description
CM 4-505-GS1 in Run (Suconet K end).
CM 4-505-GS1 in Halt (Suconet K end).
No input length error.
Input length error.
Device OK
CM 4-505-GS1 has a hardware error
(Suconet K end).
CM 4-505-GS1 in normal operation
CM 4-505-GS1 is not on normal operation.
Connection OK
No connection
Device identification OK.
Device identification not OK
Example: PS 4-201-MM1
Line 1
Slave 1
LE No. 0
Byte 0
Bit 1 or 7
Program scan whether Suconet K reports an error in
range of Slave 1:
66
Error messages via device
LEDs
L
O
O
O
O
O
S
IS 1.1.0.0.1"CM 4-505-GS1 is in HALT
"(Slave 1).
IS 1.1.0.0.2"Input length error (Slave 1)
IS 1.1.0.0.4"Hardware error (Slave 1)
IS 1.1.0.0.5"No normal operation (Slave 1)
IS 1.1.0.0.6"No connection (Slave 1)
IS 1.1.0.0.7"Device identification incorrect
(Slave 1)
M 100.0" Fault Suconet K (Slave 1)
Other line or slave addresses must be adapted
accordingly.
Error messages via
device LEDs
power
Master has sufficient power supply.
If the LED goes out, the power supply to
the master is not sufficient.
Measure:
Check the voltage on the AS-Interface
connection of the CM 4-505-GS1. The
master requires a voltage of 26.5 V. A
power supply overload may be the cause
of the fault.
09/96 AWB 27-1271-GB
Suconet Communication via the serial Suconet K is
active. If the LED flashes at a regular
frequency of 2 Hz, the hardware
connection to the master is established
but there is no data transfer. The cause of
this error may, for example, be a Suconet
address programmed in the master that is
not the same as the Suconet address set in
the CM 4-505-GS1.
If the LED does not flash at regular
intervals, this means that the hardware
connection to the Suconet master is faulty.
67
Handling
config err
A configuration error is present.
– At least one configured slave is
missing
or
– at least one slave that was not
configured was detected on the
AS-Interface,
or
– on at least one configured and
detected slave the actual
configuration does not match the set
configuration (inverted AS-Interface
flag “Config OK”).
U ASi
68
The power supply for the AS-Interface
connection is sufficient (inverted
AS-Interface flag “APF/not APO”).
Error messages via the ASInterface flags
Error messages via the
AS-Interface flags
09/96 AWB 27-1271-GB
Error messages of the
LCD display
Byte 16: Flags of the sequence control (1 = active)
Bit 0
Config_OK: No configuration error
Bit 1
LES.0: Slave present with address Zero
Bit 2
Auto_prog: Automatic programming
permitted
Bit 3
Auto_prog_available: Automatic
programming possible
Bit 4
Configuration_active: Configuration
mode is active
Bit 5
Normal operation_active: Normal
operation active
Bit 6
APF/not APO: Voltage failure on
AS-Interface
Bit 7
Offline_ready: Offline phase is active
70
Hardware error: The EEPROM in the
AS-Interface master cannot be written.
72
Hardware error: Interrupt flag of PIC
processor cannot be cleared
73
Hardware error: Interrupt flag of PIC
processor cannot be set.
74
Hardware error: Checksum error in
EPROM
80
Slave with address Zero detected.
Attempt was made to leave the
configuration mode with a connected
Zero slave.
81
General error when modifying a slave
address.
69
Handling
70
90
A slave with Zero address is not
present. This error occurred when
manually programming slave
addresses (see chapter 4, Address
Programming in Configuration Mode).
91
Destination address already assigned.
The error occurred when programming
an address in Configuration mode (see
chapter 4, Programming/Deleting
Slave Addresses).
92
The new slave address could not be
set.
93
The new address could only be saved
non-retentively in the slave.
94
The slave has incorrect configuration
data.The error occurred when
programming an address in protected
operating mode (see chapter 4,
Address Programming With
Configuration Errors)
95
Destination address already assigned.
The error occurred in protected mode.
An attempt was made to program a
slave with the address “Zero” to the
address displayed as a configuration
error. This error, however, was caused
by an additional slave rather than a
missing one.
7
Example Programs
The following three examples are provided to
illustrate the user-friendly handling of the
AS-Interface.
Example 1: Addressing
the inputs/outputs
The following example illustrates the addressing of
inputs and outputs.
09/96 AWB 27-1271-GB
A PS 4-201-MM1 is used as the Suconet K master.
The Gateway CM 4-505-GS1 is implemented as the
AS-Interface master for the coupling between the
AS-Interface and Suconet K.
71
Example Programs
The following topology is used:
SN 4-024-DA7
PS 4-201-MM1
CM 4-505-GS1
AS-Interface
power supply
+
-
+
-
A B C D E F GH
+ -
Suconet K
AS-Interface
1
10
20
User modules
Figure 20: Example topology for addressing inputs and
outputs
72
Example 2: Evaluation of
error messages
The AS-Interface CM 4-505-GS1 is the first slave in
the Suconet K line 1. The following AS-Interface
slaves are to be addressed:
Slave 1 with 4 inputs
Slave 10 with 2 inputs and 2 outputs
Slave 20 with 4 outputs
Slave 1
I 1.1.0.0.0
I 1.1.0.0.1
I 1.1.0.0.2
I 1.1.0.0.3
Input
Input
Input
Input
1
2
3
4
Slave 10
I 1.1.0.4.4
I 1.1.0.4.5
Q 1.1.0.4.6
Q 1.1.0.4.7
Input 1
Input 2
Output 1
Output 2
Slave 20
Q 1.1.0.9.4
Q 1.1.0.9.5
Q 1.1.0.9.6
Q 1.1.0.9.7
09/96 AWB 27-1271-GB
Example 2: Evaluation
of error messages
Output 1
Output 2
Output 3
Output 4
As with the AS-Interface, the trouble-free operation
of bus systems must also be ensured. The Gateway
CM 4-505-GS1 provides several AS-Interface status
messages via Suconet K.
73
Example Programs
SN 4-024-DA7
PS 4-201-MM1
CM 4-505-GS1
AS-Interface
power supply
+
-
+
-
A B CDE F GH
+ -
Suconet K
AS-Interface
Figure 21: Example topology to illustrate the error
messages
The AS-Interface status information is provided
continuously on the Suconet K input communication
byte 16.
The following bits should be scanned for possible
error messages when running machines or plants in
Automatic mode.
Bit 0: Config OK
This bit is set to 0 in the event of a configuration error.
Possible causes:
74
–
A slave is missing that was configured during
commissioning.
–
A slave that was not configured was detected on
the AS-Interface.
–
The actual configuration (ID code) of at least one
configured and detected slave does not match
the set configuration.
Example 2: Evaluation of
error messages
Bit 4: Configuration mode OK
The AS-Interface-Gateway CM 4-505-GS1 is in
Configuration mode.
Note!
In Configuration mode all detected slaves are
activated even if the set and actual configuration
is different.
This output is set, if, for example, the outputs are set
of the PLC (Host) which, with the AS-Interface
Gateway in protected mode, are to address slaves
that are not in the set configuration.
Configuration mode is active if bit 4 is set to 1.
Bit 5: Normal operation is active
The cyclical data exchange with the AS-Interface
slaves is active. If bit 5 is 0, the cyclical data
exchange is not active.
Bit 6: AS-Interface voltage drop
Bit 6 is 1 if the voltage of the AS-Interface is too low
to ensure correct operation.
09/96 AWB 27-1271-GB
Bit 7: Offline phase is active
Bit 7 is 1 if the AS-Interface master is in the
initialisation phase. No data exchange is present on
the AS-Interface.
75
Example Programs
Program section for evaluating error messages
"Printout of file c:asiflag1.q42"
00000
001
002
00001
001
00002
001
002
003
00003
001
002
003
004
005
006
007
008
009
010
011
00004
001
002
003
004
00005
001
76
MATCH
CONFIG
WATT_ESS
ERROR
RESET
BYE_BYE
"Start
L I 0.2
I_Start
JCN RESET
"Incorporating the configuration file
#include "asiflag1.k42"
"Scan flags
L RDB1.1.0.16
= MB100
"The errors are bundled here.
L M 100.7
AS-Interface Offline phase
O M 100.6
AS-Interface voltage drop
ON M 100.5
AS-Interface normal operation
S M 10.0
AS-Interface not ready
L M 10.0
O M 100.4
ON M 100.0
S M 10.1
AS-Interface
AS-Interface
AS-Interface
AS-Interface
JP BYE_BYE
"Reset faults
L K 1
R M 10.0
R M 10.1
AS-Interface not ready
AS-Interface fault Automatic
"End of program
EP
not ready
Configuration mode
Config OK
faults Automatic
Example 3: Setting
parameters for proximity
switches
Marker 10.0 indicates whether there is no data
exchange on the AS-Interface. If this message is
present, both the inputs and outputs of the
AS-Interface must not be used.
Marker 10.1 indicates a fault that should be scanned
during Automatic mode.
Example 3: Setting
parameters for
proximity switches
The function of certain AS-Interface slaves can be
set for particular requirements.
For example, the switch output ATI 1DN-ASI and
ATI 2DN-ASI proximity switches can be set to
operate either as a make contact or break contact.
These proximity switches have a standard setting for
make contact operation.
Break contact operation can be implemented by
changing the parameters accordingly. The
parameters are modified via the AS-Interface master
No. 5 “Write Parameters”.
Other functions are described in the section,
Function overview and function description,
chapter 5.
09/96 AWB 27-1271-GB
The AS-Interface Gateway is slave 1 in the
Suconet K line. A PS 4-201-MM1 is used as the
master. The AS-Interface slave 10 is an ATI 1DN-ASI
proximity switch. The switch output is to operate as
a break contact.
77
Example Programs
Data assignment of the proximity switch:
Signal assignment of the
AS-Interface Slave
Input PS 4-201-MM1
D0 =
D1 =
D2 =
D3 =
I 1.1.0.4.4
I 1.1.0.4.5
I 1.1.0.4.6
I 1.1.0.4.7
Switch output
Unreliable range
Ready for operation
N.B.
Parameters
P0 = not assigned
P1 = 1 = Make/0 = Break
P2 = not assigned
P3 = not assigned
Note!
The following program section only shows the
part required for setting parameters.
78
Example 3: Setting
switches
Program flow diagram
START
no
SET
CYC_P10 = 1
FUNC_P10 = 5
TIM_P10 = 1
CYC_P10 ?
yes
REC_P10 = 5 ?
yes
no
REC_P10 =
133 ?
no
yes
TIMQ_P10 = 1 ?
no
yes
ERR_P10 = 1
RESET
CYC_P10 = 0
FUNC_P10 = 0
TIM_P10 = 0
09/96 AWB 27-1271-GB
BYE_BYE
79
Example Programs
The program for the PS 4-201-MM1:
" Printout of the c:asipara1.q42"
00000 START
"Start of program
001
L I 1.1.0.4.4
I_prox. switch slave AS-i 10
002
= M 4.4
Controller
003
004
005
"Transfer slave address
006
L KHB 0A
007
= 'ADDR_P10
QMB_Address slave AS-i 10
008
009
"Define required parameters
010
L KHB 00
011
= 'PARA_P10
QMB_Parameter slave AS-i 10
012
013
L I 0.2
I_Start of parameter entry
014
= 'STRT_P10
Start of parameter entry
015
00001 CONFIG
"Incorporate configuration file
001
002
# include "asipara1.k42"
003
00002 BEORNOT
"Check whether to edit parameters
001
LN 'STRT_P10
002
O 'END_P10
M_End of cycle
003
JC BYE_BYE
004
00003 INPUT
"Include Suconet K input data
001
L RDB1.1.0.17
IB_function byte AS-i master
002
= 'REC_P10
IMB_Function Receive
003
00004 PAR10_5
"Start of parameter cycle
001
L 'CYC_P10
M_Cycle
002
JC PAR10_15
003
00005 PAR10_10
"Set cycle, function, watchdog
001
L 'STRT_P10
Start of parameter
002
S 'CYC_P10
M_Cycle running
003
004
L KHB 5
005
= 'FUNC_P10
QMB_Function master AS-i
006
00006 PAR10_15 "Cycle correctly executed?
001
L 'REC_P10
80
09/96 AWB 27-1271-GB
Example 3: Setting
switches
002
003
004
005
00007
001
002
003
004
005
00008
001
002
003
004
00009
001
002
003
00010
001
002
003
004
005
006
007
008
00011
001
002
003
004
005
006te
007
008
009
00012
001
002
003
004
005
006
007
008
CP KHB 5
BE RESET10
PAR10_20
"Cycle correctly executed?
L 'REC_P10
CP KHB 85
BE ERROR10
PAR10_25
"Scan whether watchdog signalled ?
L 'TIMQ_P10
M_Watchdog here P 10
JC ERROR10
JP OUTPUT10
ERROR10
"Evaluate error flag
L K 1
S 'ERR_P10
M_Error parameter entry
"Reset all
L K 1
R 'CYC_P10
S 'END_P10
M_Cycle running
M_End of cycle
L KHB 0
= 'FUNC_P10
= 'PARA_P10
RESET10
OUTPUT10
BYE_BYE
"Transfer output data on Suconet K
L 'FUNC_P10
= SDB1.1.0.17
QB_Function master AS-i
L 'ADDR_P10
= SDB1.1.0.18
QB_Address slave AS-i
L 'PARA_P10
= SDB1.1.0.19
QB_Parameter slave AS-i
"Program ends here
"Program re-initialised
"by zero reset ’STRT_P10.
TR10 -MS
[ ] S: 'CYC_P 10
[ ] R:
[ ] STOP:
Watchdog parameters
M_Cycle running
81
Example Programs
009
010
011
012
013
014
015
016
017
[w] I: KW 1000
[ ] EQ: 'TIMQ_P 10
[w] Q:
LN 'STRT_P10
R 'END_P10
R 'ERR_P10
M_End of cycle
EP
Reference file for the above program:
" Printout of file c:asipara1.z42"
Symbols
STRT_P10
CYC_P10
TIMQ_P10
END_P10
ERR_P10
PARA_P10
ADDR_P10
FUNC_P10
REC_P10
82
Operands
I 0.2
I 1.1.0.4.4
RDB1.1.0.17
SDB1.1.0.17
SDB1.1.0.18
SDB1.1.0.19
M 4.4
M 10.0
M 10.1
M 10.2
M 10.3
M 10.7
MB20
MB21
MB22
MB23
TR10
C Terminals
Operand comment
I_Start of parameter entry
I_Prox. switch slave . AS-i 10
IB_Byte function master AS-i
QB_Function master AS-i
QB_Address slave AS-i
QB_Parameter slave AS-i
Controller
M_Cycle running
M_End of cycle
Watchdog parameters
Appendix
Technical data
Rated operational
voltage
30 V DC (18–32 V DC)
Rated operational
current
300 mA
Operating temperature 0 °C to +55 °C
Storage temperature
–25 °C to +85 °C
Dimensions
H ×W ×D
75 × 100 × 119 mm
Weight
0.33 kg
Degree of protection
Housing IP 40,
Terminals IP 20
Max. Suconet K
address
Suconet K Slave
09/96 AWB 27-1271-GB
Interference
suppression
31 (30th station)
Active slave 20 Read
and 20 Write byte plus
1 Read byte for
Suconet K status
message
Limit class A acc.
EN 50 081-2
Electromagnetic
radiation
IEC 801-3
Electrostatic
Discharge
IEC 801-2
Interference pulses
IEC 801-4
83
as-igb.avz Seite 84 Donnerstag, April 24, 1997 5:04 PM
84
Figure 1:
Figure 2:
Figure 3:
Figure 4:
Figure 5:
Flat cable AS-Interface
5
AS-Interface message
6
AS-Interface topology
7
Device overview
14
Mounting on top-hat rail
acc. EN 50 022
15
Figure 6: Screw mounting
15
Figure 7: Possible mounting options
16
Figure 8: Connecting the Suconet K interface
16
Figure 9: Horizontal arrangement
20
Figure 10: Vertical arrangement
20
Figure 11: CM 4-505-GS1 supply and
AS-Interface connection, auxiliary
power of the outputs with EmergencyStop disconnection
21
Figure 12: Bus terminating resistor
22
Figure 13: Screening of Suconet K via contact
clip on mounting plate
23
Figure 14: Screening Suconet K via contact clip
to earth terminal (top-hat rail)
24
Figure 15: Screening for Suconet K using contact
clip and snap fastener
25
Figure 16: Separated cable ducts for AC and
DC voltage
27
Figure 17: Separated cable routing of power
and signal cables
28
Figure 18: Setting the Suconet K address
31
Figure 19: Time characteristics of the
handshake PLC ↔ CM4-505-GS1
50
Figure 20: Example topology for addressing
inputs and outputs
72
Figure 21: Example topology to illustrate the
error messages
74
09/96 AWB 27-1271-GB
Index of figures
as-igb.tvz Seite 85 Donnerstag, April 24, 1997 5:04 PM
Index of tables
09/96 AWB 27-1271-GB
Index of tables
Table 1: Slave profile
Table 2: Packing diagram for the input/
output data
Table 3: AS-Interface functions
Table 4: Explanation of diagnostics bits
9
46
51
66
85
86
09/96 AWB 27-1271-GB
as-igb.tvz Seite 86 Donnerstag, April 24, 1997 5:04 PM
as-igb.six Seite 87 Dienstag, April 29, 1997 11:28 AM
Index
A
Activation phase ................................................... 36
Address ................................................................ 10
Address programming, Automatic ....................... 33
Address setting ..................................................... 32
Address setting mode .......................................... 32
Addressing ............................................................ 11
Addressing device ................................................ 10
Addressing, Manual .............................................. 34
Alternate pulse modulation ................................... 10
AS-Interface ............................................................ 3
Addressing device .................................. 10
ASI association ......................................... 3
Line .....................................................7, 10
Master ..................................................... 10
Master specification ................................ 36
Power supply .......................................... 17
Power supply unit ..................................... 4
Status information ................................... 74
Telegram ................................................. 10
User modules ............................................ 4
AS-Interface line .................................................7, 8
Assignment errors ..........................................38, 40
B
09/96 AWB 27-1271-GB
Bi-directional operation .......................................... 8
Bus terminating resistors ...................................... 22
87
Index
C
Cable clip .............................................................. 22
Cable length ......................................................... 11
Cable routing ........................................................ 26
Communication direction ..................................... 46
Configuration data ................................................ 35
Configuration data image ..................................... 58
Configuration errors ........................................ 38, 68
Configuration mode ........................................ 34, 37
Connection
AS-Interface ............................................ 14
Function earth ......................................... 14
Power supply .......................................... 14
Sub D Suconet K .................................... 14
Control and status data ........................................ 45
Control cabinet ..................................................... 19
Cycle time ....................................................... 10, 11
D
Data assignment ................................................... 78
Data security ......................................................... 43
Data width .............................................................. 8
Default address .................................................... 10
Default values ....................................................... 56
Destination address .............................................. 38
Detection phase ................................................... 36
Diagnostics bit ...................................................... 65
Diagnostics remote configuration ........................ 65
Electromagnetic interference ............................... 19
Emergency-stop circuit .......................................... 5
Emergency-stop devices ...................................... 17
Error control .......................................................... 11
Error messages .............................................. 74, 76
88
09/96 AWB 27-1271-GB
E
Index
F
Front plate ............................................................ 31
Function ................................................................ 52
G
Gateway Suconet K/AS-Interface ........................ 13
H
Handshake ............................................................ 49
I
I/O configuration ................................................... 57
Identification code ................................................ 57
Isolation displacement technology ......................... 3
L
LCD display .......................................................... 14
Lightning protection .............................................. 29
List of configured slaves (LPS) ............................. 38
List of detected slaves (LDS) ................................ 34
M
09/96 AWB 27-1271-GB
M12 plug connector ............................................... 3
Manager function of the master ........................... 11
Marker .................................................................. 77
Master/slave procedure ........................................ 43
Messages ............................................................. 11
Minimum clearances .......................................19, 26
Mode button ......................................................... 14
Mounting options .................................................. 22
89
Index
N
Net data rate ......................................................... 11
Network structure ................................................. 11
Number of
Sensors/Actuators .................................. 11
Slaves ..................................................... 11
O
Offline phase ........................................................ 36
P
PELV protection .................................................... 17
Permanent configuration ...................................... 56
Permanent parameter field ................................... 53
Permanent parameter list (PP) .............................. 56
PI parameter Image .............................................. 54
Poll cycle ................................................................ 5
Power and control section ................................... 19
Power supply requirement ..................................... 5
Profile ..................................................................... 8
Protected operating mode ................................... 37
Protection elements ............................................. 29
Proximity initiator .................................................... 8
Proximity switches ............................................... 77
R
90
09/96 AWB 27-1271-GB
Receive direction .................................................. 48
Reference file .................................................. 82, 83
Repeaters ............................................................... 7
Index
S
Safety and accident prevention regulations ......... 17
Send direction ...................................................... 46
Services of the master .......................................... 11
Set button ............................................................. 14
Single-master system ............................................. 5
Slave profile ......................................................8, 10
Status LEDs .......................................................... 14
Suconet K address ............................................... 31
Suppressor circuit ................................................ 29
Switch contact ........................................................ 8
Switch output ....................................................... 77
T
Time characteristics ............................................. 50
Top-hat rail ........................................................... 15
Topology ................................................................. 7
Transfer medium ................................................... 11
Transmission protocol .......................................... 45
Two-wire cable ...................................................4, 5
U
Unipolar operation .................................................. 8
User data volume ................................................. 45
V
Varistors ................................................................ 29
Ventilation ............................................................. 19
W
09/96 AWB 27-1271-GB
Wiring .................................................................... 26
91
92
09/96 AWB 27-1271-GB

Actuator Sensor Interface

Transcription

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