Chapter  5  Analog Input/Output Module AS06XA 
5- 41 
5.5  Troubleshooting 
5.5.1  Error Codes 
Error 
Code 
Description 
A
 D LED 
indicator 
ERROR LED 
indicator 
16#1605 
Hardware failure    OFF  ON 
16#1607 
The external voltage is abnormal.  OFF  ON 
16#1608 
The factory calibration is abnormal.  OFF  ON 
16#1801 
The external voltage is abnormal.  OFF  Blinking 
16#1802 
Hardware failure  OFF 
Blinking 
16#1804 
The factory calibration is abnormal.  OFF 
Blinking 
16#1808 
The signal received by channel 1 exceeds the range of inputs 
that the hardware can receive. 
Run: blinking 
Stop: OFF 
Blinking 
16#1809 
The signal received by channel 2 exceeds the range of inputs that 
the hardware can receive. 
16#180A 
The signal received by channel 3 exceeds the range of inputs that 
the hardware can receive. 
16#180B 
The signal received by channel 4 exceeds the range of inputs that 
the hardware can receive.
 
- 
When power-on, the module is not detected by CPU module.  OFF 
Blinking once 
or twice and 
after 2 
seconds, it 
blinks 
repeatedly 
 
5.5.2  Troubleshooting Procedure 
Description  Procedure 
The external voltage is abnormal. 
Ensure the external 24 V power supply to the module is 
functioning normally. 
Hardware failure  Return the module to the factory for repair. 
Internal error 
The factory calibration is abnormal. 
Contact the factory.