Programming For When The Submaster Function Is Used - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

Programming for when the submaster function is used

This section describes the programming of when the submaster function is used. For other programming, refer to the
following.
• Cyclic transmission ( MELSEC iQ-R Ethernet/CC-Link IE User's Manual (Startup))
• Transient transmission ( MELSEC iQ-R Programming Manual (Instructions, Standard Functions/Function Blocks))
Programming for cyclic transmission
After checking that data link is normally performed, create a program to control slave stations.
■Use of data stored in RY, RWw of the master operating station
Even after the control is shifted to the submaster operating station, send data in the master operating station is not transferred
to the submaster operating station.
Therefore, the submaster operating station needs to produce the same send data as the master operating station. Create a
program where send data (RY, RWw) is produced based on receive data (RX, RWr).
Master operation
CPU module Master station
RX, RWr
RY, RWw
Sending
data
Submaster
operation
Submaster
CPU module
station
RX,RWr
Data sent
from the
master
station or a
slave station
RY,RWw
Sending
data
Obtain sending data same as that of
the master operating station.
3.2 Communication Example Using the Submaster Function
3 PROGRAMMING
171
3