Contents
PS69-DPM ♦ CompactLogix or MicroLogix Platform
User Manual
PROFIBUS DPV1 Master
Page 96 of 130
ProSoft Technology, Inc.
October 1, 2014
5.2
Hardware Diagnostics (LED)
The following section contains a description of the LED and their meaning for both the CPU
module and the PS69-DPM module.
5.2.1 CompactLogix
The following table shows the possible LED indications of the CompactLogix CPU.
Indicator
Color/Status
Description
RUN
Off
No task(s) running; controller in Program mode
Green
One or more tasks are running; controller is in the Run mode
FORCE
Off
No forces enabled
Amber
Forces enabled
Amber Flashing
One or more input or output addresses have been forced to an On or Off state,
but the forces have not been enabled.
OK
Off
No power applied
Green
Controller OK
Red flashing
Recoverable controller fault
Red
Non-recoverable controller fault:
Cycle power. The OK LED should change to flashing red.
If LED remains solid red, replace the controller.
I/O
Off
No activity; no I/O or communications configured
Green
Communicating to all devices
Green flashing
One or more devices not responding
Red flashing
Not communicating to any devices
controller faulted
5.2.2 MicroLogix 1500
To identify problems via possible LED indications of a MicroLogix 1500 controller refer to the
MicroLogix 1500 User Manuals section "Troubleshooting Your System". Here you will find a
detailed description of fault indications and possible reasons.
