Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual page 471

Instructions, standard functions/function blocks

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• When (s2)+1 (the number of characters to be extracted) is "-1", the entire character string stored in (s1) and later is stored

to (d) and later.

Position from the left end in the character

string stored in (d) and later

Number of characters from the left end in the

character string stored in (s1) and later

When handling character codes other than ASCII codes, note the following points:

• The number of characters is handled in byte units (8 bits). Accordingly, in the case of character codes in which 2 bytes

express 1 character such as shift JIS codes, 1 character is detected as "2".

• When extracting characters from a character string including character codes in which 2 bytes express 1 character such as

shift JIS codes, consider the number of characters to be extracted in units of character codes for 1 character. Note that the

expected character code is not retrieved if only 1 byte is extracted out of a 2-byte character code.

Operation error

(SD0/SD8067)

In the corresponding device range of the device specified by (s1) and later, "00H" does not exist.

The device specified by (d) exceeds the corresponding device range.

The value stored in a device specified in (s2)+1 is -2 or lower.

The value stored in a device specified in (s2) exceeds the number of characters of (d).

The value stored in a device specified in (s2)+1 exceeds the number of characters of (s1).

The character string specified by (s1) has more than 16383 characters.

The character string specified by (d) has more than 16383 characters.

Before execution

"ABCDEFGHIJK"

After execution

"A012345HIJK"

8.8 Character String Operation Instruction

8 APPLICATION INSTRUCTION

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