AH500 Hardware and Operation Manual 
12-10 
Description  Remedy 
16#2013 
The value exceeds the range of 
values which can be represented 
by the floating-point numbers. 
Check the program, compile the program again, and 
download the program again. 
16#2014 
The task designated by 
TKON/TKOFF is incorrect, or 
Check the program, compile the program again, and 
download the program again. 
16#2015 
There are more than 32 levels of 
nested program structures 
Check the program, compile the program again, and 
download the program again. 
16#2016 
There are more than 32 levels of 
nested program structures 
supported by FOR/NEXT. 
Check the program, compile the program again, and 
download the program again. 
16#2017 
The number of times FOR is 
used is different from the number 
of times NEXT is used. (SM5) 
Check the program, compile the program again, and 
download the program again. 
16#2018 
There is a label after FEND, but 
there is no SRET. 
There is SRET, but there is no 
1. Compile the program again, and download the program 
again. 
2. Reinstall ISPSoft, compile the program again, and 
download the program again. 
16#2019 
The interrupt task is not after 
FEND. (SM5) 
1. Compile the program again, and download the program 
again. 
2. Reinstall ISPSoft, compile the program again, and 
download the program again. 
16#201A 
IRET/SRET is not after FEND. 
(SM5) 
1. Compile the program again, and download the program 
again. 
2. Reinstall ISPSoft, compile the program again, and 
download the program again. 
16#201B 
There is an interrupt task, but 
there is no IRET. 
There is IRET, but there is not 
1. Compile the program again, and download the program 
again. 
2. Reinstall ISPSoft, compile the program again, and 
download the program again. 
16#201C 
End is not at the end of the 
program. (SM5) 
1. Compile the program again, and download the program 
again. 
2. Reinstall ISPSoft, compile the program again, and 
download the program again. 
16#201D 
There is CALL, but there is no 
MAR. (SM5) 
1. Compile the program again, and download the program 
again. 
2. Reinstall ISPSoft, compile the program again, and 
download the program again. 
16#201E 
The function code used in 
MODRW is incorrect. 
(SM102/SM103) 
Check the usage of the instruction and the setting of the 
operands. Please refer to the explanation of the 
instruction MODRW in AH500 Programming Manual for 
16#201F 
The length of the data set in 
MODRW is incorrect. 
(SM102/SM103) 
Check the usage of the instruction and the setting of the 
operands. Please refer to the explanation of the 
instruction MODRW in AH500 Programming Manual for 
16#2020 
The communication command 
received by using MODRW is 
Check whether the slave supports the function code and 
the specified operation.