Mitsubishi Electric MELSEC-Q Series User Manual page 149

(7) Example of communications when the master station duplex function is used
The following system configuration is used to explain an example of communications.
For example of communications when the Redundant CPU is used, refer to the following.
QnPRHCPU User's Manual (Redundant System)
(a) System configuration
Remote device station
Master station
The number of occupied stations: 2
(b) Parameter settings for a master station
(c) Parameter settings for a standby master station
Station number 2
The number of occupied stations: 1
Intelligent device station
Station number 4
The number of occupied stations: 1
CHAPTER 8 FUNCTIONS
Standby master station
Station number 1
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