Filter
Top Products
4 - 16 4 - 16
MELSEC-GOT
4 MONITORING SPECIFICATION
4.6.2 Continuous read command
(1) Continuous read command
This is a command to read data for a specified number of points from the
specified head GOT internal device to the remote register.
(2) Command format
Transfer Direction Addresses Write data
RWwm (Higher byte) 2: Continuous read setting
RWwm (Lower byte)
When the occupied points are 2 stations
1 to 6 : GOT internal device point to be read
When the occupied points are 4 stations
1 to 14 : GOT internal device point to be read
RWwm + 1
0 to 1023 : Head GOT internal device numbers to
be read
Master station GOT
RWwm + 2 to RWwm + F
———
RWrn to RWrn + D
Stores the data to be read from the GOT internal
device
GOT Master station
RWrn + E, RWrn + F
———
(3) Communication overview
When reading three points from the GOT internal device GD100 to the remote
register (RWr)
PLC CPU
0203
H
RWw0
0064
H
RWw1
0203
H
RWw0
0064
H
RWw1
1)
TO
2)
1234
H
RWr0
0E54
H
0066
H
RWr1
RWr2
FROM
1234
H
RWr0
0E54
H
0066
H
RWr1
RWr2
1234
H
GD100
0066
H
GD102
4) 3)
2)
GOT internal device
0E54
H
GD101
Master station
remote register
GOT
remote register
1) Store the continuous read command data in the master station's remote
register (RWw).
2) Turn on the GOT request flag, and read the data in GD100 to 102 are read to
the remote register (RWr) by storing the command data in the GOT remote
register (RWw).
(Command execution)
The GOT complete flag turns on when the command processing is complete.
3) By link scan, the read data is stored in the master station's remote register
(RWr).
4) Read the data to the PLC CPU using the FROM instruction, etc.