ProSoft Technology MVI71-MCM - Manual (Page 31)

Installing and Configuring the Module MVI71-MCM ♦ PLC Platform
Modbus Communication Module
ProSoft Technology, Inc. Page 31 of 111
December 28, 2007
Special care must be taken when defining the files for the side-connect interface.
Because the module directly interacts with the PLC processor and its memory,
any errors in the configuration may cause the processor to fault and it may even
lose its configuration program. After defining the files and populating them with
the correct data, download the program to the processor, and place the
processor in Run mode. If everything is configured properly, the module should
start its normal operation.
If all the configuration parameters are set correctly, and the module is attached to
a Modbus network, the modules application LED (OK LED) should remain off and
the backplane activity LED (BP ACT) should blink rapidly. Refer to the
Diagnostics and Troubleshooting of this manual if you encounter errors. Attach a
terminal to Port 1 on the module and look at the status of the module using the
Configuration/Debug Menu in the module.