ProSoft Technology MVI69-MCM User Manual

Page 146

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Reference

MVI69-MCM ♦ CompactLogix or MicroLogix Platform

User Manual

Modbus Communication Module

Page 146 of 167

ProSoft Technology, Inc.

March 22, 2011

5.7

Cable Connections

The application ports on the MVI69-MCM module support RS-232, RS-422, and

RS-485 interfaces. Please inspect the module to ensure that the jumpers are set

correctly to correspond with the type of interface you are using.

Note: When using RS-232 with radio modem applications, some radios or modems require
hardware handshaking (control and monitoring of modem signal lines). Enable this in the
configuration of the module by setting the UseCTS parameter to 1.

5.7.1 RS-232 Configuration/Debug Port

This port is physically an RJ45 connection. An RJ45 to DB-9 adapter cable is

included with the module. This port permits a PC based terminal emulation

program to view configuration and status data in the module and to control the

module. The cable for communications on this port is shown in the following

diagram:

5.7.2 RS-232 Application Port(s)

When the RS-232 interface is selected, the use of hardware handshaking

(control and monitoring of modem signal lines) is user definable. If no hardware

handshaking will be used, here are the cable pinouts to connect to the port.

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