List Of Commands And Functions For A Compatible 1C Frames - Mitsubishi MELSEC Q Series Reference Manual

5.1.5 List of Commands and functions for A compatible 1C frames

The following table lists the commands and functions when an external device
accesses the programmable controller CPU using A compatible 1C frames.
Function
Bit units
Batch read
Word units
Bit units
Batch write
5
( )
Word units
Bit units
Test
Device (random write)
5
memory ( )
Word units
6
( )
Bit units
Monitor data
registration
3
( )
Word units
Bit units
Monitor
Word units
Batch read
Batch write
Test
5
(random write) ( )
Monitor data registration
3
( )
Extension
Monitor Word units
file register
Direct read Word units
Direct write Word units
Intelligent Batch read
function
module
Batch write
Loopback test
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5 WHEN COMMUNICATING USING THE A COMPATIBLE 1C FRAMES
Command
–
Symbol ASCII code
BR 42 , 52
H H
Reads bit devices (X, Y, M, etc.) in 1-point units.
JR 4A , 52
H H
Reads bit devices (X, Y, M, etc.) in 16-point units.
WR 57 , 52
H H
QR 51 , 52
Reads word devices (D, T, C, etc.) in 1-point units.
H H
BW 42 , 57
H H
Writes to bit devices (X, Y, M, etc.) in 1-point units.
JW 4A , 57
H H
WW 57 , 57 Writes to bit devices (X, Y, M, etc.) in 16-point units.
H H
QW 51 , 57
Writes to word devices (D, T, C, etc.) in 1-point units.
H H
BT 42 , 54 Sets/resets bit devices (X, Y, M, etc.) in 1-point units by
H H
JT 4A , 54 randomly designating the devices and device number.
H H
Sets/resets bit devices (X, Y, M, etc.) in 16-point units by
randomly designating the devices and device numbers.
WT 57 , 54
H H
QT 51 , 54
Writes to word devices (D, T, C, etc.) in 1-point units by
H H
randomly designating the devices and device numbers.
BM 42 , 4D Registers bit devices (X, Y, M, etc.) to be monitored in 1-
H H
point units (
JM 4A , 4D
H H
Registers bit devices (X, Y, M, etc.) to be monitored in
16-point units (
WM 57 , 4D
H H
QM 51 , 4D
Registers word devices (D, T, C, etc.) to be monitored in
H H
1-point units.
MB 4D , 42
H H
MJ 4D , 4A
H H
Monitors devices with monitor data registered.
MN 4D , 4E
H H
MQ 4D , 51
H H
ER 45 , 52 Reads extension file register (R) in 1-point units.
H H
EW 45 , 57 Writes to extension file register (R) in 1-point units.
H H
Writes to extension file register (R) in 1-point units by
ET 45 , 54
H H
randomly designating the devices and device numbers.
Registers extension file register (R) to be monitored in 1-
EM 45 ,4D
H H
point units.
Monitors extension file register (R) with monitor data
ME 4D , 45
H H
registered.
Reads extension file register in 1-point units by
NR 4E , 52 designating the device numbers by serial number
H H
regardless of the extension file register block number.
Writes to extension file register in 1-point units by
NW 4E , 57 designating the device numbers by serial number
H H
regardless of the extension file register block number.
Reads data in the buffer memory of an intelligent function
TR 54 , 52
H H
module.
Writes data to the buffer memory of an intelligent function
TW 54 , 57
H H
module.
Sends (returns) characters received from an external
TT 54 , 54
H H
device back to the external device unchanged.
Processing
2
)
2
)
Number of points
processed per
communication
256 points
32 words (512 points)
64 points
160 points
10 words (160 points)
64 points
20 points
10 words (160 points)
10 points
40 points
20 words (320 points)
20 points
(Number of registrations
points)
64 points
64 points
10 points
20 points
(Number of registrations
points)
64 points
64 points
128 bytes
254 bytes
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