AH500 Programming Manual 
6-246 
Additional remark: 
1.  If the value in S is less than 0, the instruction is not executed, SM0 is ON, and the error code in 
SR0 is 16#2003. 
2.  If S+n-1 exceeds the device range, the instruction is not executed, SM0 is ON, and the error 
code in SR0 is 16#2003. 
3.  If n is less than 2, or if n is larger than 512, the instruction is not executed, SM0 is ON, and the 
error code in SR0 is 16#200B. 
4.  The instruction SFWR can be used with the instruction SFRD to write and read the data.