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Unitronics

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EX-RC1

 

Remote I/O Adapter

The EX-RC1 interfaces between Unitronics Vision OPLCs and remote I/O Expansion Modules distributed 
throughout your system. 
The adapter is connected to a PLC via CANbus. Each adapter may be connected to up to 8 I/O Expansion 
Modules. The network may comprise up to 60 nodes, including both PLCs and adapters; note that the PLC 
must comprise a CANbus port. Communication is via UniCAN, Unitronics’ proprietary CANbus protocol.  
The EX-RC1 is run by a factory-installed application. For more information refer to the Remote I/O topics in 
the VisiLogic Help system. 

The EX-RC1 may either be snap-mounted 
on a DIN rail, or screw-mounted onto a 
mounting plate.

 

POWER

EX-RC1

0V

V

Remote I/O Adapter

PRG

Network ID

CANbus

PWR

I/O COMM.

Bus COMM.

Component identification 

1

Status indicators 

2

PC to EX-RC1 connection port 

3

Power supply connection points 

4

EX-RC1 to expansion module  
connection port 

5

CANbus port 

6

DIP Switches 

Before using this product, it is the responsibility of the user to read and understand this document and
any accompanying documentation.
All examples and diagrams shown herein are intended to aid understanding, and do not guarantee
operation.  Unitronics accepts no responsibility for actual use of this product based on these examples.
Please dispose of this product in accordance with local and national standards and regulations.
Only qualified service personnel should open this device or carry out repairs.

User safety and equipment protection guidelines 

This document is intended to aid trained and competent personnel in the installation of this equipment as 
defined by the European directives for machinery, low voltage, and EMC.  Only a technician or engineer trained 
in the local and national electrical standards should perform tasks associated with the device’s electrical wiring. 

Symbols are used to highlight 
information relating to the user’s 
personal safety and equipment 
protection throughout this document.  
When these symbols appear, the 
associated information must be read 
carefully and understood fully. 

Symbol Meaning 

Description 

Danger 

The identified danger causes physical 
and property damage. 

Warning 

The identified danger can cause 
physical and property damage. 

Caution

 

Caution Use 

caution. 

Summary of Contents for EX-RC1

Page 1: ...understand this document and any accompanying documentation All examples and diagrams shown herein are intended to aid understanding and do not guarantee operation Unitronics accepts no responsibility for actual use of this product based on these examples Please dispose of this product in accordance with local and national standards and regulations Only qualified service personnel should open this...

Page 2: ...sconnect the device when the power is on Environmental Considerations Do not install in areas with excessive or conductive dust corrosive or flammable gas moisture or rain excessive heat regular impact shocks or excessive vibration Leave a minimum of 10mm space for ventilation between the top and bottom edges of the device and the enclosure walls Do not place in water or let water leak onto the un...

Page 3: ...tronics 3 Screw Mounting The figure below is not drawn to scale It may be used as a guide for screw mounting the module Mounting screw type either M3 or NC6 32 4mm 5 8mm 0 228 85mm 3 346 80mm 3 15 68 4mm 2 693 93mm 3 66 4mm x2 0 16 0 16 ...

Page 4: ...otective cap provided with the adapter This cap covers the port of the final I O module in the system To avoid damaging the system do not connect or disconnect the device when the power is on 1 2 Component identification 1 Module to module connector 2 Protective cap Wiring Do not touch live wires Unused pins should not be connected Ignoring this directive may damage the device Double check all wir...

Page 5: ... kgf cm Do not use tin solder or any other substance on stripped wire that might cause the wire strand to break Install at maximum distance from high voltage cables and power equipment Wiring Power Supply Connect the positive cable to the V terminal and the negative to the 0V terminal Earthing the Power Supply To maximize system performance avoid electromagnetic interference by Mounting the module...

Page 6: ...communicates via Unitronics proprietary UniCAN protocol UniCAN can comprise up to 60 nodes including PLCs and EX RC1 remote I O adapters The CANbus port is galvanically isolated CANbus Wiring 121 terminating resistor 121 terminating resistor Circuit protection device 24V Power Supply V L H V PE V L H V PE V L H V PE Network terminators Place terminators at each end of the CANbus network Resistance...

Page 7: ...1 Remote I O Adapter Unitronics 7 Network Layout The EX RC1 enables you to remotely locate I Os up to 1 kilometer from a PLC You can include both PLCs and adapters on the UniCAN network up to a total of 60 nodes ...

Page 8: ...per unit Galvanic isolation Yes between CANbus and adapter Cable type Twisted pair DeviceNet thick shielded twisted pair cable is recommended Cable length baud rate 25 m 100 m 250 m 500 m 500 m 1000 m 1000 m 1 Mbit s 500 Kbit s 250 Kbit s 125 Kbit s 100 Kbit s 50 Kbit s 20 Kbit s If you require cable lengths over 500 meters contact technical support Environmental IP20 NEMA1 Operating temperature 0...

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