ProSoft Technology MVI56-DFCM - Manual (Page 50)

Diagnostics and Troubleshooting MVI56-DFCM ♦ ControlLogix Platform
User Manual DF1 Half/Full Duplex Master/Slave Serial Communication Module
Page 50 of 106 ProSoft Technology, Inc.
September 24, 2014
4.1 LED Status Indicators
The LEDs indicate the module’s operating status as follows:
LED Color Status Indication
CFG Green On Data is being transferred between the module and a remote
terminal using the Configuration/Debug port.
Off No data is being transferred on the Configuration/Debug port.
P1 Green On Data is being transferred between the module and the DF1
network on Port 1.
Off No data is being transferred on the port.
P2 Green On Data is being transferred between the module and the DF1
network on Port 2.
Off No data is being transferred on the port.
APP Amber On The MVI56-DFCM module program has recognized a
communication error on one of its ports.
Off The MVI56-DFCM is working normally.
BP ACT Amber On The LED is on when the module is performing a write
operation on the backplane.
Off The LED is off when the module is performing a read
operation on the backplane. Under normal operation, the LED
should blink rapidly on and off.
OK Red/
Green Off The card is not receiving any power and is not securely
plugged into the rack.
Green The module is operating normally.
Red The program has detected an error or is being configured. If
the LED remains red for over 10 seconds, the program has
probably halted. Remove the card from the rack and re-insert
the card to r
estart the module’s program.
BAT Red Off The battery voltage is OK and functioning.
On The battery voltage is low or battery is not present. Allow
battery to charge by keeping module plugged into rack for 24
hours. If BAT LED still does not go off, contact ProSoft
Technology, as this is not a user serviceable item.
During module configuration, the OK LED will be red and the APP and BP ACT
LEDs will be on. If the LEDs are latched in this mode for a long period of time,
look at the configuration error words in the configuration request block. The
structure of the block is as shown below:
Offset Description Length
0 Reserved 1
1 9000 1
2 Module Configuration Errors 1
3 Port 1 Configuration Errors 1
4 Port 2 Configuration Errors 1
5 to 248 Spare 244
249 -2 or -3 1