Unitronics Uni-COM UAC-CB-01RS2 User manual

Unitronics

Uni-COM®CB Modules

Installation Guide

UAC-CB-01RS2,

UAC-CB-01RS4,

UAC-CB-01CAN

SCAN

to download

This guide provides basic installation information for Unitronics’ Uni-COM™ CB Modules.

Use them to add communication ports to specific models of the UniStream®family of

Programmable Logic Controllers. Compatible models comprise a Uni-COM™ CB COM

Module Jack which provides the connection point for the module.

Refer to the specifications of your UniStream model to check whether it is compatible with

CB modules.

UAC-CB-01RS2 offers one RS232 port, UAC-CB-01RS4 offers one RS485 port, and

UAC-CB-01CAN offers one CANbus port.

Technical specifications and Installation Guides are available in Unitronics Technical Library

at www.unitronicsplc.com.

Before You Begin

Before installing the device, the installer must:

Read and understand this document.

Verify the Kit Contents.

Alert Symbols and General Restrictions

When any of the following symbols appear, read the associated information carefully.

Symbol Meaning Description

Danger The identified danger causes physical and property damage.

Warning The identified danger could cause physical and property damage.

Caution Caution Use caution.

All examples and diagrams 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 according to local and national standards and regulations.



This product should be installed only by qualified personnel.

Failure to comply with appropriate safety guidelines can cause severe injury or

property damage.

Do not attempt to use this device with parameters that exceed permissible levels.



Do not connect/disconnect the device when power is on.

UAC-CB-01RS2, UAC-CB-01RS4, UAC-CB-01CAN Installation Guide

Environmental Considerations

Ventilation: 10mm (0.4”) of space is required between the device top/bottom edges

and the enclosure’s walls.

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,

in accordance with the standards and limitations given in the product’s technical

specification sheet.

Do not place in water or let water leak onto the unit.

Do not allow debris to fall inside the unit during installation.



Install at maximum distance from high-voltage cables and power equipment.

Kit Contents

UAC-CB-01RS2 UAC-CB-01RS4 UAC-CB-01CAN

1 UAC-CB-01RS2 module 1 UAC-CB-01RS4 module



1 RS485 terminal block

1 UAC-CB-01CAN module

Uni-COM™ CB Diagram

DIN-rail clips, Top and Bottom

These clips secure the module to the DIN-rail

2 COM Module Plug

(not shown)

Plug this into the COM Module Jack located on a

compatible device

3 Door Open door to allow easy access to LEDs and DIP

switch

4 Communication Port

(not shown)

The type of port depends upon the module

5 COM Module Jack and cover This is the connection point for additional modules;

leave covered when not in use

6 Communication LEDs Green. Refer to the device's technical specifications

7 DIP switches Use these to set RS485/CANbus network

termination

2 Unitronics

Uni-COM™ CB

Installation

Turn off system power before connecting or disconnecting any module or device.

Use proper precautions to prevent Electro-Static Discharge (ESD).

The module is shipped with its COM module jack covered. To protect the jack from

debris, damage, and ESD, you must leave it covered when not in use.



The final module in a row must have its jack covered.

NOTE UAC-CB modules can only be installed onto compatible devices, such as UniStream

PLCs, or connected to other UAC-CB modules.

Installing UAC-CB Modules

NOTE Mount on a standard DIN-rail next to a compatible device.

Ensure there is sufficient space to install/uninstall modules.

In the first figure below, the module being installed is UAC-CB-01CAN; the second

figure shows a UAC-CB-01RS2 being connected to the UAC-CB-01CAN.

Installing the first module onto the side of the controller:

1. Check the controller to verify that its COM

module jack is not covered.

If the Uni-COM™ CB module the last one in the

configuration, leave the COM jack covered.

2. Push the module onto the DIN-rail until the

clips located at the top and bottom of the unit

have snapped onto the DIN-rail.

3. Slide the module as shown in the accompanying

figure, until the COM module plug is firmly seat

in the other devices’ COM module jack.

Connecting additional modules onto the first:

1. Check the module that is already installed to

verify that its COM jack is not covered.

If the UAC-CB module is to be the last one in

the configuration, do not remove the cover of

its COM jack.

2. Insert the module’s connection plug into the

jack until it is firmly seated.

NOTE If you mount vertically, place a DIN-rail stop or end clamp under the final module in

the configuration. This is especially recommended if vibrations are present.

Unitronics 3

UAC-CB-01RS2, UAC-CB-01RS4, UAC-CB-01CAN Installation Guide

Removing a Module

You must remove the end module in a row before removing the next one.

1. Turn off the system power.

2. Disconnect any wires or cables connected to the module.

3. Press the clips on the top and bottom of the modules, and carefully pull the module

from its place.

Wiring

All wiring activities should be performed while power is OFF.

Unused points should not be connected (unless otherwise specified). Ignoring

this directive may damage the device.



Double-check all wiring before turning on the power supply.

Caution To avoid damaging the wire, use a maximum torque of 0.5 N·m (5 kgf·cm).

Do not use tin, solder, or any substance on stripped wire that might cause the

wire strand to break.



Install at maximum distance from high-voltage cables and power equipment.

Wiring Guidelines

In order to ensure that the device will operate properly and to avoid electromagnetic

interference:

Use a metal cabinet. Make sure the cabinet and its doors are properly earthed.



Use shielded cables.

NOTE For detailed information on avoiding EMI, refer to the document System Wiring

Guidelines, located in the Technical Library in the Unitronics’ website.

UAC-CB-01RS2 - RS232 module

Use shielded cable

Pin Number

Pin Name

Direction

Description

Not connected

RXD

Receive Data

TXD

Out

Transmit Data

Not connected

Return

Signal Ground

6 (see note)

Connected to Pin 7

7 (see note)

Connected to Pin 6

8, 9

Not connected

NOTE

Pins 6 and 7 are not connected to internal circuits.

4 Unitronics

Uni-COM™ CB

UAC-CB-01RS4 – RS485 module

Wiring Procedures

Use crimp terminals for wiring; use 26-12 AWG wire (0.13 mm2 –3.31 mm2).

1. Strip the wire to a length of 7±0.5mm (0.275±0.020 inches).

2. Unscrew the terminal to its widest position before inserting a wire.

3. Insert the wire completely into the terminal to ensure a proper connection.

4. Tighten enough to keep the wire from pulling free.

Use the RS485 port to create a multi-drop network.

The UAC-CB-01RS4 is shipped with a 4 pin RS485

terminal block. This connector is marked with a pin

assignment that is identical to the corresponding

marking on the module.

RS485 Wiring

D+

Tx/Rx+ (B)

D-

Tx/Rx– (A)

Signal Ground

Functional Ground

Use shielded twisted-pair cable in compliance with EIA RS485 specifications.

When wiring each node, connect the cable shield to the functional ground point of the

RS485 terminal block.

Caution In order to avoid ground-loops, do not connect the RS485 functional ground

terminal to the earth of the system, as it is internally connected to the

controller’s functional ground point.

RS485 Termination

Use the DIP switches shown in the diagram on page 2 to

set the RS485 termination according to this table.

The device is shipped with both its DIP switches set to

ON; change settings if the device is not at one of the ends

of the RS485 network.

Position

DIP Switch

State

ON ON Terminated

(factory default)

OFF

Not Terminated

Unitronics 5

UAC-CB-01RS2, UAC-CB-01RS4, UAC-CB-01CAN Installation Guide

UAC-CB-01CAN - CANbus module

There are two RJ45 connectors on the top of this module.

Connect one connector to your CANbus network. The other connector may be used to

daisy-chain to another device.

CANbus Wiring

Use CAT-5e shielded cable with

RJ45 connector.

When wiring each node, connect

the cable shield to the shield of

the RJ45 connector.

Connect the CANbus cable shield

to the system earth at only one

point near the power supply.

Pin #

Description

shield

Functional Ground

H CAN High

L CAN Low

3 -V CANbus

Signal Common

Don't connect

CANbus Termination

Use the DIP switches shown in the diagram on page 2 to

set the CANbus termination according to this table.

The device is shipped with both its DIP switches set to

ON; change settings if the device is not at one of the ends

of the CANbus network.

Position

DIP Switch

State

ON ON Terminated

(factory default)

OFF

Not Terminated

Theinformationin thisdocument reflects productsatthedate ofprinting. Unitronicsreserves theright, subjectto allapplicable laws, atany time,at itssole discretion,and withoutnotice, to

discontinueor change the features,designs,materialsandother specificationsofitsproducts,and toeitherpermanentlyor temporarily withdrawanyof the forgoing from themarket.

Allinformation in this document isprovided "as is" without warranty ofanykind,eitherexpressed or implied, includingbutnotlimited to any implied warrantiesof merchantability, fitness for

aparticularpurpose,or non-infringement. Unitronicsassumes noresponsibility forerrorsor omissions in the informationpresented in thisdocument. Inno eventshallUnitronicsbe liable

for anyspecial,incidental,indirectorconsequentialdamages ofanykind, oranydamages whatsoever arisingoutofor in connectionwith theuse orperformanceof this information.

Thetradenames,trademarks,logos andservice markspresented in thisdocument, including their design,are thepropertyofUnitronics(1989) (R"G)Ltd.or other thirdpartiesandyouare

notpermitted to use them withoutthe prior writtenconsentofUnitronicsor such thirdpartyasmayown them

DOC32004-A5 02/19

6 Unitronics

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