Wt Command [Tests Device Memory In 1-Word Units (By Writing Arbitrarily)] - Mitsubishi FX3U-USB-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
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7.8

WT Command [Tests Device Memory in 1-Word Units (by Writing Arbitrarily)]

This section explains the control procedure specification method and shows a specification example when the
word device memory and bit device memory (in 16-point units) are specified arbitrarily and written all at once.
Word devices and bit devices (in 16-point units) can be specified together. However, the WT command
cannot handle 32-bit word devices C200 to C255 (CN200 to CN255).
1. Specification method
The specification method in the control procedure format 1 is shown below:
Test (write arbitrarily) command (unit: word)
E
N
Q
Computer side
PLC side
1) Specify the device point range while satisfying the following conditions:
- 1 ≤ Number of device points ≤ 10
2) Express the station number, PLC number, number of device points and sum check code in hexadecimal.
3) The WT command cannot handle 32-bit word devices C200 to C255 (CN200 to CN255).
*1. 6 in the FX
D-66
Number of
device points
W T
(2 characters
(hexadecimal))
When specifying bit devices,
specify the head device.
A
C
K
*1
(in unit of 10
and FX Series
1S 0N
7.8 WT Command [Tests Device Memory in 1-Word Units (by Writing Arbitrarily)]
Character area A
Device
Data
(5 characters)
(4 characters)
One device uses 4 characters. Four digits
(hexadecimal) express one data word.
*1
in case of bit devices (One unit indicates 16 points.))
7 Commands
Device
Data
(5 characters)
(4 characters)