ProSoft Technology CLX-PVX - Manual (Page 35)

QTS-CLX-PVX Page 29
Troubleshooting
ControlLogix Module LEDs
The module has three status LEDs to indicate the state of internal operations. The LEDs
are labeled NET, CLX and OK.
NET LED – Control I/O Bus Status
The NET LED shows the status of I/O communication. The NET LED states are the
same for master and monitor modes.
In order of priority, highest first, these are:
Color Meaning
Solid Red Card offline - happens when there is no configuration
on the module
Flashing red Net LED blinks RED for 1 second with every bus error.
A burst of bus errors causes the LED to stay red for
longer than 1 second.
Yellow One or more configured cards is offline (can't be
reached via primary or secondary links)
Green All configured cards are online
CLX LED – ControlBus Status
The CLX LED indicates the status of communication with the ControlLogix processor.
Color Meaning
Green All required connections are open
Yellow Idle, no scheduled connections, ControlLogix PLC
does not have a configuration for the QTS-CLX-PVX
module or the configuration is inhibited.
Flashing
Red/Off
The module has returned a CIP error within the last
second - no scheduled connections, QTS-CLX-PVX
module configuration not present
Solid Red The module has returned a CIP error - no scheduled
connections.