Chapter 12  Troubleshooting 
12-5 
12.2
 
Troubleshooting for CPU Modules
 
Users can get the remedies from the tables below according to the statuses of the LED indicators and the error 
codes. 
12.2.1
 
ERROR LED Indicator’s Being ON 
Error 
Description  Remedy 
16#000B 
The program in the PLC is 
damaged. 
Download the program again. 
16#000D 
The CPU parameters are 
Reset the CPU parameter, and download it. 
16#0010 
The access to the memory in the 
CPU is denied. 
Download the program or parameters again. If the 
problem still occurs, please contact the local authorized 
The PLC ID is incorrect. (SM9) 
16#0012 
The PLC password is incorrect. 
(SM9) 
Please check the PLC password. 
16#0014 
The procedure of restoring the 
system can not be executed. 
(SM9) 
The contents of the system backup file are incorrect, or 
the file does not exist in the path specified. If the file 
exists and the procedure of restoring the system can not 
be executed, please backing up the system again. If the 
error still occurs, please contact the local authorized 
distributors. (Please refer to section 7.5 in AH500 
Operation Manual, and section 21 in ISPSoft User 
Manual for more information about the memory card.) 
16#0015 
The module table is incorrect. 
(SM10) 
The module table stored in the CPU module is incorrect. 
Compare the module table in HWCONFIG with the actual 
module configuration, and download the module table 
16#0016 
The module setting is incorrect. 
(SM10) 
The module setting stored in the CPU module is 
incorrect. Check whether the version of the module 
inserted in the slot is the same as the version of the 
module in HWCONFIG. After the version of the module is 
updated, users can download the module setting again. 
16#0017 
The data register exceeds the 
device range. (SM10) 
The data register stored in the CPU module exceeds the 
device range. Check whether the module parameter in 
HWCONFIG is correct, and download the module 
16#001B  Timed interrupt 0 is set incorrectly. 
Set the CPU parameter in HWCONFIG again, and 
download the CPU parameter again. 
16#001C  Timed interrupt 1 is set incorrectly. 
Set the CPU parameter in HWCONFIG again, and 
download the CPU parameter again. 
16#001D  Timed interrupt 2 is set incorrectly. 
Set the CPU parameter in HWCONFIG again, and 
download the CPU parameter again. 
16#001E  Timed interrupt 3 is set incorrectly. 
Set the CPU parameter in HWCONFIG again, and 
download the CPU parameter again. 
16#001F 
The watchdog timer is set 
Set the CPU parameter in HWCONFIG again, and 
download the CPU parameter again. 
16#0020 
The setting of the fixed scan time 
is incorrect. 
Set the CPU parameter in HWCONFIG again, and 
download the CPU parameter again. 
16#0021 
The setting of the fixed scan time 
Set the CPU parameter in HWCONFIG again, and 
download the CPU parameter again. 
16#0022 
The CPU parameter downloaded 
to the PLC is incorrect. 
Set the CPU parameter in HWCONFIG again, and 
download the CPU parameter again.