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MELSEC-GOT
4 MONITORING SPECIFICATION
4.6.8 Always write register command
(1) Always write register command
This is a command to always register the device number of the GOT internal
device that performs the remote register data write.
After executing the always write register command, always execute the always
write request command.
(2) Command format
Transfer Direction Addresses Write data
RWwm (Higher byte) 8: Always write register setting
RWwm (Lower byte)
When the occupied points are 2 stations
1 to 6 :Points to be written to the GOT internal device
When the occupied points are 4 stations
1 to 14 :Points to be written to the GOT internal device
RWwm + 1 to RWwn + E
0 to 1023 : GOT internal device numbers to be
regis-tered
(Storage for the setting mentioned above)
Master station GOT
RWwn + F
———
GOT Master station RWrn to RWrn + F
———
(3) Communication overview
Refer to Section 4.6.9.
4.6.9 Always write request command
(1) Always write request command
This is a command to always write data in the remote register to the GOT internal
device registered by executing the always write register command.
Execute the always write request command after executing the always write
register command.
(2) Command format
Transfer Direction Addresses Write data
RWwm to RWwn + D
Store write data for the number of points registered
with the always write register command
Master station GOT
RWwn + E, RWwn + F
———
GOT Master station RWrn to RWrn + F
———