ProSoft Technology MVI56E-MCM User Manual

MVI56E-MCM ♦ ControlLogix Platform Verify Communication
Modbus Communication Module User Manual
ProSoft Technology, Inc. Page 69 of 209
4 Verify Communication
In This Chapter
 Verifying Master Communications ......................................................... 69
 Verify Slave Communications ................................................................ 76
There are several ways to verify that the MVI56E-MCM module is communicating
with the processor and with the Modbus network.
 View the LED Status Indicators
 View the Module Status in the MVI56E-MCM Status Data Definition (page
160).
 View Diagnostics in Diagnostics and Troubleshooting (page 78)
4.1 Verifying Master Communications
The Modbus Master commands are configured, now it is time to verify that these
commands are working correctly.
Within the MVI56E-MCM module, there are a couple of ways of checking to see if
the commands that have been configured in the previous location are working
correctly.
The most common, and detailed method of checking the communications is
using the MCM.CONFIG.PORTX.CMDERRPTR parameter. This parameter will tell
you the individual status of each command that is issued by the module. Another
method is by checking the MCM.STATUS.PRTXERRS location for total
commands issued, responses received, errors, and so on.

ProSoft Technology MVI56E-MCM Specifications

General

Brand	ProSoft Technology
Model	MVI56E-MCM
Category	Control Unit
Language	English