Mitsubishi LJ61BT11 User Manual page 283

Sending station (master station)
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12 EXAMPLE OF COMMUNICATION BETWEEN THE MASTER STATION AND LOCAL STATIONS
REMARK
Securing cyclic data on a per-station basis
By configuring an interlock with remote I/O (RX/RY), cyclic data can be secured on a
per-station (4-word) basis.
1 Data of more than one station are not secured.
Configure an interlock with remote I/O (RX/RY) as shown in the following example.
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1) The send/receive command (M0) turns ON.
2) Data of D0 to D3 are stored in W100 to W103 (RWw0 to RWw3).
3) Upon completion of storage in W100 to W103, Y1000 (RY0) for handshake
turns ON.
4) By cyclic transmission, remote output (RY) data are sent following the remote
resister (RWw) data, and the receiving station's X1000 (RX0) turns ON.
5) Data of W0 to W3 (RWr0 to RWr3) are stored in D100 to D103.
6) Upon completion of storage in D100 to D103, Y1000 (RY0) for handshake turns
ON.
7) When the data transmission to the receiving station is complete, Y1000 turns
OFF.
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Receiving station (local station)
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