DC303 - Smar

•
Discrete I/O connected direct onto
Profibus-PA
• Input and Output Function Blocks,
including Flexible Function Block (FFB)
for logic execution
• Power, Control and I/O integrated in the
same hardware
• Mix Profibus with conventional devices
•Reduce wiring cost
DC303
Description
Until all types of devices are available with Profibus-PA
systems, they will have to be a hybrid nature accepting both
Profibus and conventional signals. A mixed traditional and
Profibus environment is inevitable during the transition to a
Profibus technology. DC303 Remote I/O makes integration
of Profibus and conventional I/O easy. Discrete devices
such as pressure switches, push buttons, on/off valves,
pumps and conveyors are integrated to the system over
the Profibus-PA field-level network using DC303. It is a
single integrated easy to use piece of equipment including
power, control, networking and I/O under one compact device
requiring less panel space than other solutions.
The DC303 is an integral part of SYSTEM302 but also
integrates into other systems supporting Profibus.
Easy Installation
The DC303 Remote I/O units can be distributed into the field where they are mounted close to the conventional devices
without the need to run the conventional wiring to the control room.
The unit may be installed close to the sensors and actuators, thereby eliminating long wire runs and associated marshalling
panels and cable trays for the conventional I/O, with subsequent savings further reducing overall system cost. Use DC303
to make it possible to distribute I/O at various locations in the field and connect them via Profibus-PA. DC303 is ideal to
connect motor control centers, variable speed drives, and electrical actuators and motor operated valves to Profibus-PA.
The DC303 is a simple low-cost DIN-rail mounted unit. It can optionally be supplied preinstalled in an enclosure ready for
field mounting.
Easy Configuration
The DC303 is fully configured through the SYSTEM302 or any other Profibus configuration tool based on EDDL or FDT/DTM.
Function Blocks
The DC303 has 16 Discrete Input (DI) blocks and 8 Discrete Output (DO) blocks.
Conventional discrete I/O now works together with pure Profibus devices on the same network and in the same loop.
Output function blocks include standard Profibus-PA safety mechanism in case of failures. Inputs and outputs are
isolated from each other and the Profibus network in groups of eight channels. LEDs are used to indicate active outputs
and inputs.
2
Description
DC303
Function blocks
PHY
DISCRETE INPUT
DISCRETE OUTPUT
TRD Block
This block contains data that is specific to the hardware that is associated with the resource.
The DI block takes the manufacture's discrete input data, selected by channel number, and
makes available to other function block at its output.
The DO block converts the value in SP_D to something useful for the hardware found at the
CHANNEL selection.
Transducer block that allows the inputs and outputs to interface with discrete function blocks, and
allows setting the FFB to provide logic such as AND, OR, XOR, NOT etc. as well as SR flip-flops,
RS flip-flops, Timer On Delay, Timer Off Delay, Timer Pulse, Counter Up, Counter Down. Based on
structured text language, provides an easy way to generate the logic implementation.
Technical Characteristics
General
Communication
Profibus-PA on 31.25 Kbit/s voltage mode in compliance with IEC 61158-2.
Current consumption
150 mA from Vdc power supply.
quiescent
Turn-on Current
400 mA during the first 20 s after power
Turn-on Time
Approximately 10 seconds.
Update Time
Approximately 60 ms. The update time is related to the update of the inputs and outputs.
Output Impedance
Non-intrinsic safety from 7.8 kHz - 39 kHz should be greater or equal to 3 kΩ. Intrinsic safety
output impedance (assuming an IS barrier in the power supply) from 7.8 kHz - 39 kHz should
be greater or equal to 400 Ω.
Function Blocks
Up to 16 Discrete Input Function Blocks (DIs) and up to 8 Discrete Output Function Blocks (DOs).
The DC303 has a Built-in Flexible Function Block (FFB) for logic execution such as: AND, OR,
XOR and NOT. Functions as: Timer On-Delay, Timer Off-Delay, Timer Pulse, Pulse Counter
Down (CTD), Pulse Counter Up (CTU), Flip-Flop RS and Flip-Flop SR.
Vibration Effect
Meets SAMA PMC 31.1.
Temperature Limits
Housing
Operation: -40 to 85ºC (-40 to 185 ºF).
Storage: -40 to 110ºC (-40 to 230 ºF).
Housing Shell and Base: Polycarbonate, 10% Glass Filled;
Terminals: Pressure Plate /Terminal Screws: Zinc Plated, Yellow Chromated Steel;
Temperature rating: 110ºC (230 ºF) UL94VO;
Protection: it has IP20 rating (finger protected) and meets VBG4 and other European accident
prevention requirements. It can optionally be supplied preinstalled in an enclosure ready for
field mounting.
Configuration
Via Profibus Communication using tools based on EDDL or FDT/DTM.
Mounting
Using DIN rail (TS35-DIN EN 50022 or TS32-DIN EN50035 or TS15-DIN EN50045.
3
DC303
Technical Characteristics
Inputs
The input senses the DC input voltage and converts it into a True (ON) or False (OFF) logic signal.It has 1 optically
isolated group of 16 inputs to detect 24 Vdc.
Architecture
Number of Inputs: 16.
Isolation
Optical Isolation up to: 5000 Vac.
External Power
Voltage Source for Inputs: 18 - 30 Vdc;
Typical Consumption per group: 120 mA (all inputs ON);
Power indicator: Green LED.
Inputs
ON State Level (True Logic): 15 - 30 Vdc;
OFF State Level (False Logic): 0 - 5 Vdc;
Typical Impedance: 3.9 KΩ;
Status display: Red LED.
Switching
Information
Wiring
Time from "0" to "1": 30 µs;
Time from "1" to "0": 50 µs.
One wire: 14 AWG (2 mm 2);
Two wires: 20 AWG (0.5 mm 2).
Outputs
The outputs are designed with open collector NPN transistors that are able to drive relays, solenoids and other DC loads
with up to 0.5 A per output. All channels within a group share the same ground whereas groups are isolated from each
other and from the Profibus network.
Architecture
Number of Outputs: 8.
Isolation
Optical Isolation up to: 5000 Vac.
External Power
Voltage Source for Outputs: 20 - 30 Vdc;
Maximum Consumption 35 mA;
Power indicator: Green LED.
Outputs
Maximum Switched Voltage: 30 Vdc;
Maximum Saturation Voltage: 0.55 V @ 0.5 A;
Maximum Current per Output: 0.5 A;
Status Display: Red LED;
Indicator Logic: ON when the transistor is on;
Maximum Leakage Current: 100 µA @ 35 Vdc.
Independent
Protection
per Output
Thermal Shutdown: 165 ºC;
Thermal Hysteresis: 15 ºC;
Overcurrent Protection: 1.3 A @ 25 Vdc maximum;
Clamp Diode.
Switching
Information
Time from "0" to "1": 250 µs;
Time from "1" to "0": 3 µs.
Wiring
One wire: 14 AWG (2 mm2);
Two wires: 20 AWG (0.5 mm2).
4
Spare Parts
NAME
Main Electronic Board
I/O Board
Interface Board
Housing
CODE
400-1221
400-1223
400-1222
400-1224
Ordering Code
MODEL
Description
DC303
1 group of 16 24 Vdc optically isolated inputs.
1 group of 8 optically isolated open collector outputs.
5
DC303
Dimensions
DC303
140.0
14.4
44.5
R2
60.5
12
9
8
8
8
12
12
12
21.5
21.5
21.5
38.3
90.0
38.3
10
8.5
8,5
127.5
6
4 - 20 mA
Outputs
7
rete
isc
e
In D iscret
D
t
Ou
FOUNDATION TM
H1 I.S.
Fiber Optic Ring
DC302
(Remote I/O)
DF100
4 - 20 mA
Inputs
Channel 1
Intrinsic Safety
Barrier
FOUNDATION TM
FISCO
Communication
Server
Channel 8
DFI302
Redundant Controller
Communication
Server
All-in-one Station
PA
Maintenance and
Asset Management
DP
DFI302
PROFIBUS DP and PA
et
ern
Eth
Maintenance
DFI302
Redundant Controller
Communication
Server
Operation
HI302
HART/FOUNDATION TM
Fieldbus
Engineering
DFI302
DeviceNet
4 - 20 mA
Router or
Firewall
Corporate
Network Internet
I.S.
Discrete
I/O
DFI302
(Cotroller with I/O modules)
4 - 20 mA I.S.
Discrete I/O
DFI302
AS-i
Auto Tuning
Advanced Control
- MES (Manufacturing Execution System)
- ERP (Enterprise Resource Planning)
- CRM (Customer Relationship Management
Communication
Server
Alarm and Asset
Management
Maintenance
Modbus TCP
Modbus RTU
Matrix
Printer
Package Units
Legacy Systems
CLP
F&G
ESD
Internet
Communication
Server
Laser
Printer
Server
Server
SYSTEM302 Architecture
DC303
Main Smar Products
DC303
Pressure
4-20 mA LD290
Pressure, Level and Flow
Density/Concentration
LD400
LD1.0
DT301
RD400
LD301
LD291
DT302
LD302
LD292
DT303
LD303
LD293
Pressure
Transmitter
Level
Gauge Economic
Capacitive Pressure
Transmitter
Pressure
Transmitter
Pressure
Transmitter with
high performance
Intelligent Density /
Concentration
Transmitter
Level Transmitter
Position
FY301
FY400
FY302
FY303
Valve Positioner
Valve Positioner
with auto tuning
FY301
TP301
FY302
TP302
FY303
TP303
Valve Positioner with
remote sensor
Temperature
PositionTransmitter
Junction Box
4-20 mA
TT301
4-20 mA
TT411
TT302
TT303
Temperature
Transmitter
TT421
Panel Mounting
Temperature
Transmitter
Head Mouting
Temperature
Transmitter
Configurators
HART® Configurator
Interface CONF401
HART® Configurator
Interface DDCON 100
3 Ways Junction Box
JM1
4 Ways Junction Box
JM400
Interfaces
HART® Configurator
for Palm HPC301
8
HART-RS232
Interface HI311
HART-USB Interface
Hi321
Main Smar Products
DC303
Converters
FP302
FP303
Fieldbus to Pneumatic
Signal Converter
FI302
IF302
IF303
Current to Fieldbus
Converter
FI303
Fieldbus to Current
Converter
HART® / Fieldbus HART® / Current
Interface HI302 Converter HCC301
Controllers
DeviceNet
TM
DeviceNet
Programmable Logical
Controller
LC700
Interface Universal Fieldbus
DFI302
Digital Controller
CD600Plus
Systems
DeviceNet
DeviceNet
TM
ProcessView
Process Visualization Tool
Studio302
System302 Management Tool
DeviceNet
Syscon
System Configurator
TM
AssetView
On Line Plant Asset
Management Tool
TM
Equipment Database
Plant Information Management
9
LogicView
IEC61131
Programming Tool
TM
smar
www.smar.com
Specifications and information are subject to change without notice.
Up-to-date address information is available on our website.
web: www.smar.com/contactus.asp
DC3 0 3 CE
© Copyright 2012 - Smar International - all rights reserved. - August/2013