Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 1952

■Operation result
1.
Function without EN/ENO
The operation processing is performed. The operation result is output from (d).
2.
Function with EN/ENO
The execution conditions and operation results will be as follows.
Execution condition
EN
TRUE (executed)
FALSE (not executed)
*1 If the value FALSE is output from ENO, the output data from (d) will be undefined. Create a program so that the undefined value will not
be used in operations.
Operation error
Error code Description
(SD0)
2820H There is no NULL code (00H) in the setting area specified by (s) in the device/label memory.
3405H The number of characters in the string input to (s) exceeds 16383.
Out-of-range data is set to (n1) or (n2).
• The value input to (n1) or (n2) is 0 or smaller.
• The value input to (n2) is other than the valid values (-1, 0, 1 or bigger).
• The value input to (n1) exceeds the number of characters in (s).
• The sum of (n1) and (n2) exceeds the number of characters in (s).
32 STRING FUNCTIONS
1950
32.3 Extracting String Data
Operation result
ENO
TRUE
*1
FALSE
(d)
Operation result output value
Undefined value