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MELSEC-Q
9 PROGRAMMING
Device Name Device Application
SB20 Module status
SB47 Baton pass status (host)
Link special relay
SB49 Host data link status
SW70.1 Baton pass status of each station
SW74.1 Cyclic transmission status of each station
Link special register
SW78.1 Parameter communication status of each station
Timer T0 to T4 For interlock between local and other stations
M1 For MC instruction
M10 REMTO instruction: For instruction completion
M11 REMTO instruction: For instruction result
M20 Basic parameter setting command
M30 REMFR instruction: For instruction completion
M31 REMFR instruction: For instruction result
M40 Basic parameter setting command
M50 REMFR instruction: For instruction completion
M51 REMFR instruction: For instruction result
M60 REMFR instruction: For instruction completion
M61
For basic parameter
setting
REMFR instruction: For instruction result
M100
Automatic communication parameter setting
command
M101 REMTO instruction: For instruction completion
M102 REMTO instruction: For instruction result
M111 REMFR instruction: For instruction completion
M112
For automatic
communication
parameter setting
REMFR instruction: For instruction result
M200
MODBUS
R
device assignment parameter setting
command
M201 REMTO instruction: For instruction completion
M202 REMTO instruction: For instruction result
M211 REMFR instruction: For instruction completion
M212
For MODBUS
R
device
assignment parameter
setting
REMFR instruction: For instruction result
M300 REMFR instruction: For instruction completion
M301 REMFR instruction: For instruction result
M310 REMTO instruction: For instruction completion
M311 REMTO instruction: For instruction result
M320 REMFR instruction: For instruction completion
M321 REMFR instruction: For instruction result
M322 For normal processing
M330 REMFR instruction: For instruction completion
M331
For automatic
communication function
REMFR instruction: For instruction result
M401 For automatic communication parameter 1
Internal relay
M402
Automatic
communication normal
For automatic communication parameter 2