Unitronics Vision OPLC V570-57-T34 Installation Manual page 12

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CANbus

These controllers comprise a CANbus port. Use

this to create a decentralized control network using

one of the following CAN protocols:

 CANopen: 127 controllers or external

devices

 CANLayer 2

 Unitronics' proprietary UniCAN: 60

controllers, (512 data bytes per scan)

The CANbus port is galvanically isolated.

CANbus Wiring

Use twisted-pair cable. DeviceNet® thick shielded

twisted pair cable is recommended.

Network terminators: These are supplied with the

controller. Place terminators at each end of the

CANbus network.

Resistance must be set to 1%, 121Ω, 1/4W.

Connect ground signal to the earth at only one

point, near the power supply.

The network power supply need not be at the end

of the network

CANbus Connector

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V570-57-T34 Installation Guide

24V Power Supply