MVI56E-SMGC ♦ ControlLogix™ Platform
Enhanced FMC722 TPU General Communication Module
4.1.2 Non-Scrolling LED Status Indicators
The non-scrolling LEDs indicate the module's operating status as follows:
LED
Color
APP
Red or Green
OK
Red or Green
ERR
Red or Green
4.2 Clearing a Fault Condition
Typically, if the OK LED on the front of the module remains RED for more than ten
seconds, a hardware problem has been detected or the program has exited.
To clear the condition, follow these steps:
1
Turn off power to the rack.
2
Remove the card from the rack.
3
Verify that all jumpers are set correctly.
4
If the module requires a Compact Flash card, verify it is installed correctly.
5
Re-insert the card in the rack and turn the power back on.
6
Verify correct configuration data is being transferred to the module from the
ControlLogix controller.
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
Technical Support.
ProSoft Technology, Inc.
Status
Indication
OFF
No connections established over Ethernet
GREEN
At least one connection established
RED
During operation, this LED will remain RED in case all
connections previously established have been terminated. In
case a single connection is established then the LED will be set
ON/GREEN.
This LED will also be temporarily set as ON/RED during one of
the following conditions:
The firmware is initializing during startup.
The module is rebooting due to a cold boot or warm boot request
from the ladder logic or Debug Menu.
OFF
The module is not receiving adequate power or is not securely
plugged into the rack.
GREEN
The module is operating normally
RED
The module has detected an internal error or is being initialized.
If the LED remains RED for over 10 seconds, the module is not
working.
OFF
Not Used
Diagnostics and Troubleshooting
User Manual
Page 50 of 98
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