ProSoft Technology MVI69E-MBS - Manual (Page 96)

Diagnostics and Troubleshooting MVI69E-MBS ♦ CompactLogix Platform
User Manual Communication Module
Page 96 of 162 ProSoft Technology, Inc.
January 6, 2014
6.1 Ethernet LED Indicators
The Ethernet LEDs indicate the module's Ethernet port status.
LED State Description
Data OFF Ethernet connected at 10Mbps duplex speed
AMBER Solid Ethernet connected at 100Mbps duplex speed
Link OFF No physical network connection is detected. No Ethernet
communication is possible. Check wiring and cables.
GREEN Solid
or Blinking Physical network connection detected. This LED must be ON solid
for Ethernet communication to be possible.
6.2 LED Status Indicators
The LEDs indicate the module’s operating status.
LED Status Indication
ETH On Ethernet communications are ok
Off No Ethernet cable connected
P1 Green Data is being transferred between the module and the Modbus
network on Port 1
Red Communication error detected
Off No Modbus network activity detected
P2 Green Data is being transferred between the module and the Modbus
network on Port 2
Red Communication error detected
Off No Modbus network activity detected
CFG Green Configuration is ok
Yellow Module is reading configuration
Red Error setting up Modbus protocol driver, failed startup, or module
shutting down
Off Processor is in Program mode
BP Green The LED is on when the module is performing a write operation on
the backplane. Under normal operation, the LED should blink
rapidly on and off.
Red Major fault or module shutting down
OK Green Module is ok
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.