Unitronics Uni-COM UAC-CB-01RS2, Uni-COM UAC-CB-01CAN, Uni-COM UAC-CB-01RS4 Installation Manual

Unitronics

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Alert Symbols and General Restrictions

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

This product should be installed only by qualified per sonnel.

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

Uni-COM® CB Modules

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

UAC-CB-01CAN

SCAN

to download

This guide provide s bas ic installation information for Unitronics’ Uni-COM™ C B Modules.
Use th em to a dd co mmuni cation po rts to specif ic models of the UniSt ream

®

family of
Programmable Logic Controllers. Compatible models comprise a Uni-COM™ CB COM
Modu l e J ack which provide s the connection point for the module.

Refer to the specif ications of your UniStream model to check wh et h er it is compatible wit h
CB modules.

UAC-CB-01 RS2 offers one RS232 port, UAC-CB-01RS4 offers one RS485 port, and
UAC-CB-01 C AN off er s one CANbus port.

Technical specific at ions and In stallation Guides are available in Unitronics Technical Library
at www.unitronicsplc.com

.

Before You Begin

Before installing t h e device, the installer must:

 Read and understand this document.
 Verify the Kit Contents.

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. Un i tronics accept s no responsi bil i ty for actua l use of thi s prod uct based on
these examples.

 Ple ase dispose of t his prod uct a ccording to local and n a tional standards an d regulations.



 Failure to comply with approp riate safety guideline s can cause severe injury or

property damage.

 Do not att emp t to use this device with parameters that exceed p ermissible lev els.



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

Install at maxi mum di stance from hi gh-voltag e cables and p ower equ ipment.

1 RS485 terminal block

Uni-COM™ CB Diagram

1

DIN-rail clips, Top and Bottom

These clips se cure the module t o t h e DIN-rail

(not shown)

compatible device

switch

(not shown)

leave covered wh en not in use

termination

Environmental Considerations

 Ventilation: 10mm (0.4”) of space is requi red between t h e d ev ice top /bottom edges

and the enclosure’s walls.

 Do not instal l in areas with: excessive o r c ond uctive d ust, corrosive o r flammable

gas, moisture or rain, ex cessive hea t, regu l ar 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 d eb ris to fall inside the unit during installation.



Kit Contents

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

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



 1 UAC-CB-01CAN module

2 COM Modu l e Plug

Plug this into the COM Module Jack located on a

3 Door Open door to allo w easy access to LEDs and DIP

4 Communication Port

The type of port depends upon the module

5 COM Modu l e Jack a n d cover This is the connection point for additional modules;

6 Communicati on LEDs Green. Refer to the device's technical spec ificat ions
7 DIP swi tches Use these to set RS485/CANbus network

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Uni-C OM™ C B

The f inal module in a row must have it s jack covered.

PLCs, or connected to other UAC-CB modules.

Installing UAC-CB Modules

fig ure sho w s a UAC-CB-01RS2 being connected to the UAC-CB-01CAN.

Installing the first module ont o the si de of th e controller:

Installation

 Turn off system power before connecting or disconnecting any m od ul e or device.
 Use prop er precautions to prevent Ele ctro-Static Discharge (ESD).
 The module is shipped with its COM module jack covered. To protect the jack fro m

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



NOTE

 UAC-CB modules can only be installed onto compatible de v ices, such as UniStream

NOTE

 Mount on a standard DIN-rail next to a compati b l e d evi ce.
 Ensure the r e is suf fici e nt space to i nstall/uninstall m odu les.
 In the first fig ure below, th e module being installed is UAC-CB-01CAN; the second

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 m odu le p lug is firmly seat
in the other devices’ COM modul e jack.

Connecting additional modules onto the first:

1. Check the module that is already i nstalled to

verif y that its COM ja ck is not covered .
If the UAC-CB module is to be th e last one in
the configuration, do not re move th e cover of
its COM jack.

2. Insert the module’s connection plug into the

jack until it is firmly seat ed .

NOTE

If y ou mount vertically, place a DIN-rail stop or end clamp under the final module in
the configuration. This is especially recommended if vibrations a re present.

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

Removing a Module

from its place.

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

Use shielded cables.

Guidelines, located in t h e Technical Library in the Unitronics’ website.

Pin Number

Pin N a me

Direction

Description

1 - -

Not c onnected

2

RXD

In

Receive Data

3

TXD

Out

Transmit Data

4 - -

Not c onnected

5

SG

Return

Signal Ground

6 (see note)

- - Conne cted to Pi n 7

7 (see note)

- - Conne cted to Pi n 6

8, 9 - -

Not c onnected

Pins 6 and 7 are not connected to internal circuits.

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

1. Turn off th e sy stem p ower.

2. Disc onnect any w i res or cables connect ed to the module.

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

Wiring

 All wiring a ctivities should be perfor med while power is OFF.
 Unused points shoul d not be connected (unl es s otherwise specified). Ignoring

this directive may damage th e device.



Caution

 T o avoid damagin g the w ire, u se a maximum t o rque of 0.5 N·m (5 kgf·cm).
 Do not use tin, sold er, or a ny substance on stripped w ire tha t might cause the

wire strand to bre a k .



Install at ma x imum d istance from high -voltage cab les and power equipment.

Wirin g Guidelines

In order to ensure t h at the device will operate properly and to avoid el ectromagnetic
interference:

 Use a metal cabinet. Make sure the cabinet and it s doors are prope rly earthed.



NOTE

For detailed inform ati on on avoiding EMI, refer to the d ocument System Wiring

UAC-CB-01RS2 - RS232 module

 Use shielded cable

NOTE

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Uni-C OM™ C B

4. Tighten enough to keep the wire from pulling f ree.

D+

Tx/Rx+ (B)

D-

Tx/Rx– (A)

SG

Signal Ground

Functional Ground

controller’s functional ground point.

Position

1

2

(facto ry default)

OFF

OFF

Not Terminated

UAC-CB-01RS4 – RS485 module

Wiring Procedures

Use crimp terminals for wiring; use 26-12 AWG wire (0.13 mm2 –3.31 m m2).

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

2. Unscrew the termin al t o its widest position befor e inserting a wire.

3. Insert the wire completely int o th e terminal t o ensure a proper connection.

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

The UAC-CB-01RS4 is shipp ed with a 4 pin RS485
terminal block. Th is connector is marked wit h a p in
assignment that is identical to the corresponding
marking on the module.

RS485 Wiring

 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 av oid groun d-loops, do not connect t h e R S 4 8 5 functional ground
terminal to the earth of the system, as it is internally connected to the

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 DI P sw itches set to
ON; change settings if the device is not at one of t h e ends

ON ON Terminated

of the RS485 network.

DIP Switch

State

Unitronics 5

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

daisy-chain to another device.

Pin #

Description

shield

Functional Ground

1

2

Signal Common

4

Don't connect

5

Don't connect

6

Don't connect

7

Don't connect

8

Don't connect

Position

1

2

(facto ry default)

OFF

OFF

Not Terminated

The information in this document reflects products at the date of printing. Unitronics reserves the right, subject to all applicable laws, at any time, at its sole discretion, and without notice, to

DOC32004-A5 02/19

UAC-CB-01CAN - CANbus module

There are two RJ45 connectors on the top of this module.
Conne ct one connector to your CANbus network. T h e other connector may be used to

CANbus Wiring

 Use CAT-5e shielded cable with

RJ45 c onnect or.

 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.

H CAN Hig h
L CAN Low

3

-V CANbus

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 DI P sw itches set to
ON; change settings if the device is not at one of t h e ends

ON ON Terminated

DIP Switch

State

of the CANbus network.

discontinue or change the features, designs, materials and other specifications of its products, and to either permanently or temporarily withdraw any of the forgoing from the market.
All information in this document is provided "as is" without warranty of any kind, either expressed or implied, including but not limited to any implied warranties of merchantability, fitness for

a particular purpose, or non-infringement. Unitronics assumes no responsibility for errors or omissions in the information presented in this document. In no event shall Unitronics be liable
for any special, incidental, indirect or consequential damages of any kind, or any damages whatsoever arising out of or in connection with the use or performance of this information.

The tradenames, trademarks, logos and service marks presented in this document, including their design, are the property of Unitronics (1989) (R"G) Ltd. or other third parties and you are
not permitted to use them without the prior written consent of Unitronics or such third party as may own them

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