12-1
Chapter 12 Troubleshooting
Table of Contents
12.1 Troubleshooting ....................................................................................... 12-2
12.1.1 Basic troubleshooting steps ................................................................... 12-2
12.1.2 Clear the Error States ........................................................................... 12-2
12.1.3 Troubleshooting SOP ............................................................................. 12-3
12.1.4 System Log ......................................................................................... 12-4
12.2 Troubleshooting for CPU Modules............................................................. 12-5
12.2.1 ERROR LED Indicators Are ON ................................................................ 12-5
12.2.2 ERROR LED Indicators Blinking Every 0.5 Seconds .................................... 12-5
12.2.3 ERROR LED Indicators Blinking Rapidly Every 0.2 Seconds ........................ 12-6
12.2.4 ERROR LED Indicators Slow Blinking Every 3 Seconds and Lighting up for 1 Second
.......................................................................................................... 12-6
12.2.5 The LED RUN and ERROR Indicators are Blinking Simultaneously Every 0.5
Seconds .............................................................................................. 12-6
12.2.6 The RUN and LED Indicators are Blinking One After Another Every 0.5 Seconds. .
.......................................................................................................... 12-6
12.2.7 Other Errors (Without LED Indicators) ..................................................... 12-6
12.3 Troubleshooting for Analog Modules (AD/DA/XA) and Temperature Modules
(PT/TC) .................................................................................................. 12-13
12.4 LED Indicators and Error Codes for CPU Modules ................................... 12-14
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