AS Series Operation Manual 
12-32 
12.4.2
 
Error Codes and LED Indicators for Analog/Temperature 
Modules 
Error code  Description 
ERROR LED indicator status 
A 
 D /   
D 
 A /   
ERROR 
The external voltage is abnormal. 
The factory calibration or the CJC is abnormal. 
The external voltage is abnormal. 
16#1804*1  The factory calibration is abnormal. 
RUN: Blinking 
Blinking 
16#1808 
The signal received by channel 1 exceeds the range of 
analog inputs (temperature). 
RUN: Blinking 
STOP: OFF 
Blinking 
16#1809 
The signal received by channel 2 exceeds the range of 
analog inputs (temperature). 
16#180A 
The signal received by channel 3 exceeds the range of 
analog inputs (temperature).   
16#180B 
The signal received by channel 4 exceeds the range of 
analog inputs (temperature).   
16#180C 
The signal received by channel 5 exceeds the range of 
analog inputs (temperature). 
16#180D 
The signal received by channel 6 exceeds the range of 
analog inputs (temperature). 
16#180E 
The signal received by channel 7 exceeds the range of 
analog inputs (temperature). 
16#180F 
The signal received by channel 8 exceeds the range of 
analog inputs (temperature). 
- 
When power-on, the module is not detected by CPU 
module. 
OFF 
Blinking once 
or twice and 
after 2 seconds, it 
blinks repeatedly 
*1: The errors are specified as warnings to ensure the CPU module can still run even when the warnings are triggered by 
its AIO modules. Set up HWCONFIG to have the following first 4 error codes appear as errors when they occur. 
 
12.4.3
 
Error Codes and LED Indicators for Positioning Module AS02 / 
04PU 
Error code  Description 
ERROR LED indicator status 
A 
 D    ERROR 
16#1802  Hardware failure    OFF  Blinking