Mitsubishi Electric FX3U-232-BD - Commands

D-58
FX Series PLC User's Manual - Data Communication Edition
Computer Link
7 Commands
6.6 Transfer Data in Character Area
7. Commands
This chapter explains specification methods and specification examples of commands in dedicated protocols
used in computer link communication type.
For control procedures in dedicated protocols, refer to "6. Control Procedures and Setting Methods".
The table below shows a reference section for each command.
Command Contents of processing
Applicable PLC
Reference
section
FX3S, FX3G, FX3GC,
FX3U, FX3UC
FX2(FX), FX2C, FX0N,
FX
1S, FX1N, FX1NC,
FX
2N, FX2NC
BR Reads bit devices in 1-point units. 7.1
WR
Reads bit devices in 16-point units, or
word devices in 1-point units.
7.2
QR
Reads bit devices in 16-point units, or
word devices in 1-point units.
 —7.3
BW Writes bit devices in 1-point units. 7.4
WW
Writes bit devices in 16-point units, or
word devices in 1-point units.
7.5
QW
Writes bit devices in 16-point units, or
word devices in 1-point units.
 —7.6
BT
Specifies bit devices arbitrarily in 1-point
units, and sets or resets them (forcibly
sets them to ON or OFF).
7.7
WT
Specifies bit devices arbitrarily in 16-point
units, and sets or resets them (forcibly
sets them to ON or OFF). Or specifies
word devices arbitrarily in 1-point units,
and writes data to them.
7.8
QT
Specifies bit devices arbitrarily in 16-point
units, and sets or resets them (forcibly
sets them to ON or OFF). Or specifies
word devices arbitrarily in 1-point units,
and writes data to them.
 —7.9
RR
Sets a PLC to RUN mode in remote
control.

7.10
RS
Sets a PLC to STOP mode in remote
control.

PC Reads the PLC model name code. 7.11
GW
Turns the global function ON or OFF in all
linked PLCs.
7.12
—
Offers the on-demand function (by which
a PLC gives a sending request), and does
not offer any command.
7.13
TT
Returns received characters back to the
computer as they are.
7.14