Communication With Remote Device Stations - Mitsubishi LJ61BT11 User Manual

8.1.2 Communication with remote device stations

Programmable
controller CPU
Network
parameters
Automatic
refresh
parameters
X
Y
W
W
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This section explains an overview of the communication between the master and
remote device stations.
In the communication with remote device stations, the signals for handshaking with
remote device stations (initial data request flag, error reset request flag, etc.) are
communicated using remote input RX and remote output RX. Numeric data (averaging
processing specification, digital output value, etc.) is communicated using remote
register RWw and remote register RWr.
1)
3)
Automatic refresh
4)
Automatic refresh
6)
Automatic refresh
9)
Automatic refresh
Master station
Network
parameters
Buffer memory
Remote input
Link scan
RX
Remote output
Link scan
RY
Remote register
Link scan
RWw
Remote register
Link scan
RWr
Remote device station
Remote input
2) RX
Handshaking signals
such as remote READY
and initial data
processing request flag
Remote output
RY
5)
Handshaking signals such
as error reset request flag
and initial data processing
complete flag
Remote register
RWw
7)
Numeric data for
averaging processing
setting, A-D conversion
enable/disable setting,
etc.
Remote register
8)
RWr
Numeric data such as
digital output values,
detected temperature
value, etc.
8 FUNCTIONS
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