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MELSEC-GOT
4 MONITORING SPECIFICATION
(3) GOT monitor request flag (RY(n+3)1,RY(n+7)1)
When the GOT monitor request flag is on, the data in the GOT internal device
registered for monitoring is always read to the remote register.
Refer to (a) when executing the monitor registration command.
GOT monitor request flag
Monitor request command
ON
Command processing
Processes to always read the data in the GOT
internal device specified in the remote register
Command processing Command processing Command processing
(4) GOT always write request flag (RY(n+3)2,RY(n+7)2)
When the GOT always write request flag is on, the remote device data is always
written to the GOT internal device which has been registered for write.
Refer to (a) when executing the always write register command.
G
OT always write request flag
GOT write request command
ON
Command processing
Processes to always read the remote register
data to the s
p
ecified GOT internal device.
Command processing Command processing Command processing
(5) Error status flag (RX(n+3)A,RX(n+7)A) and error reset request flag
(RY(n+3)A,RY(n+7)A)
If an error occurs during execution of a command when communicating with the
GOT internal device, the error status flag turns on.
The error status flag is turned off by turning on the error reset request flag,.
Error status flag
Error reset request flag
ON
ON
POINT
The error status flag turns ON if the executed dedicated command is wrong or the
preset device cannot be monitored (the device is outside the monitor-enabled
range).
(6) Remote ready flag (RX(n+3)B,RX(n+7)B)
Turns on during the GOT startup.
Turns off during off-line operations (OS installation and screen data download)
and initial processing execution.