Mitsubishi Electric FX3G SERIES Programming Manual page 639

Programmable controllers

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Table of Contents

Series Programmable Controllers

Programming Manual - Basic & Applied Instruction Edition

This instruction can handle character codes other than ASCII codes, but please note the following:

• 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 code, the length of 1 character is regarded as 2 characters.

• When overwriting 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 given if only 1 byte is overwritten out of a 2-byte character code.

An operation error is caused in the following cases; The error flag M8067 turns ON, and the error code is stored in

• When "00H" is not set within the corresponding device range after a device specified by

code: K6706)

• When the value specified by

later (error code: K6706)

• When the number of characters specified by

code: K6706)

specifies a negative value (error code: K6706)

+1 specifies "-2" or less (error code: K6706)

Program example

In the program example shown below, 4 characters are extracted from the character string data stored in D0 and later,

and stored to the 3rd character (from the left end) and later for the character string data stored in D100 and later when

X010 turns ON.

b15---------------b8b7-----------------b0

exceeds the number of characters of the character string stored in

26 Character String Control – FNC200 to FNC209

26.8 FNC207 – MIDW / Random Replacement of Character Strings

+1 exceeds the number of characters specified by

Before execution

b15---------------b8b7-----------------b0

After execution

b15---------------b8b7-----------------b0

The 1st to 4th characters are stored.

Fx3u series Fx3uc series