
MVI56E-GSC ♦ CompactLogix or MicroLogix Platform Diagnostics and Troubleshooting
Enhanced Generic ASCII Serial Communication Module User Manual
ProSoft Technology, Inc. Page 73 of 140
May 9, 2014
Displayed during startup if there is an error opening
application serial Port 2 (P2)
Displayed during startup if either of the two application serial
ports fails to open after a second attempt
Displayed during startup if there is an error setting up the
signal handlers)
Operation Message
After the initialization step, the following message pattern will be repeated on the
scrolling LED display.
<Backplane Status> <IP Address> <Backplane Status> <Port1 Status> <Port2
Status>
"OK": Module is communicating with processor
<Port1 Status>
<Port2 Status>
"Enabled": Port is enabled, sending and receiving possible
"Disabled": Port is disabled, no sending or receiving possible
3.7 Ethernet LED Indicators
The Ethernet LEDs indicate the module's Ethernet port status as follows:
Ethernet connected at 10Mbps duplex speed
Ethernet connected at 100Mbps duplex speed
No physical network connection is detected. No Ethernet
communication is possible. Check wiring and cables.
Physical network connection detected. This LED must be ON solid
for Ethernet communication to be possible.
3.8 Non-Scrolling LED Status Indicators
The non-scrolling LEDs indicate the module’s operating status as follows:
The module is not receiving adequate power or is not securely
plugged into the rack. May also be OFF during configuration
download.
The MVI56E-GSC is working normally.
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