Troubleshooting - ProSoft Technology MVI56-PNPM User Manual

MVI56-PNPM ♦ ControlLogix Platform
Phantom Network Protocol Master Communication Module
If the module's OK LED does not turn green, verify that the module is inserted
completely into the rack. If this does not cure the problem, contact ProSoft
Technology Support.

4.2.2 Troubleshooting

Use the following troubleshooting steps if you encounter problems when the
module is powered up. If these steps do not resolve your problem, please contact
ProSoft Technology Technical Support.
Processor Errors
Problem Description
Processor Fault
Processor I/O LED
flashes
Module Errors
Problem Description
BP ACT LED remains
off or blinks slowly
OK LED remains red
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Steps to take
Verify that the module is plugged into the slot that has been configured
for the module.
Verify that the slot in the rack configuration has been set up correctly in
the ladder logic.
This indicates a problem with backplane communications. Verify that all
modules in the rack are configured in the ladder logic.
Steps to take
This indicates that backplane transfer operations are failing. Connect to
the module's Configuration/Debug port to check this.
To establish backplane communications, verify the following items:
The processor is in Run mode.
The backplane driver is loaded in the module.
The module is configured for read and write block data transfer.
The ladder logic handles all read and write block situations.
The module is configured in the processor.
The program has halted or a critical error has occurred. Connect to the
Configuration/Debug port to see if the module is running. If the program
has halted, turn off power to the rack, remove the card from the rack
and re-insert the card in the rack, and then restore power to the rack.
Diagnostics and Troubleshooting
ProSoft Technology, Inc.
January 2, 2008