Delta AS Series Programming Manual page 1053

Additional remarks
1. If the operand S is not a string ($) but a device with a string, the string in S can be up to 256 characters (16#00
ending character included). If the string in S does not end with 16#00, SM0 is ON, and the error code in SR0 is
16#200E.
2. If n is less than 0, it is processed as 0. If n is greater than the length of the string in S, it is processed as the length
of the string is S.
3. If D is not sufficient to contain n characters, the instruction is not executed, SM0 is ON, and the error code in SR0
is 16#2003.
Cha p ter 6 App l ied Ins truc tio ns
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