Mitsubishi Electric FX3G SERIES Programming Manual page 538

Programmable controllers

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Series Programmable Controllers

Programming Manual - Basic & Applied Instruction Edition

When "n" is an odd number, only the low-order byte (8 bits) of the final separation source device is regarded as

the target data as shown in the figure below.

For example, when "n" is "5", the data from

4) When "n" is "0", WTOB instruction is not executed.

Related instruction

BTOW (FNC142)

Devices storing the separation source data can overlap devices storing the separated data.

When "n" is an odd number, however, the high-order byte (8 bits) of the final separation source device is overwritten

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

• When the separation source devices

When "n" is an odd number, the number of a rounded up value decides the number of devices. (error code: K6706)

• When the separated data destination devices

code: K6706)

Program example

In the program shown below, the data stored in D10 to D12 is separated in byte units, and stored in D20 to D25.

It is ignored when

Combines the low-order 8 bits (low-order byte) of consecutive 16-bit data.

"36H" is ignored when "n" is "5".

Because D14 is also used in the

separation result destination devices D

and later, "36H" is erased and

overwritten.

to the low-order byte (8 bits) of

"00H" is stored.

"00H" is stored.

+n/2 are outside the specified device range (error code:

+n-1 are outside the specified device range (error

"00H" is stored.

19 Data Operation 2 – FNC140 to FNC149

19.2 FNC141 – WTOB / WORD to BYTE

+2 is stored in

Fx3u series Fx3uc series