Mitsubishi Electric MELSEC iQ-R Series User Manual page 421

Both systems program executions setting
Set the parameter for each program to be executed in both systems.
[CPU Parameter]  [Program Setting]
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Item Description
Both Systems Program Set whether to execute a program only in the CPU module of the control system or
Executions Setting in the CPU modules of both systems.
• "Both Systems Executions" can be set for programs whose execution type is the
initial execution type, scan execution type, and standby type.
• "Control System Execution" can be set for programs whose execution type is the
fixed scan execution type and event execution type.
To enable the output (Y) to external devices connected to the standby system in a program executed in both
systems, set "Enable" in "Standby System Output Setting" of the CPU parameter. ( Page 425 Redundant
System Operation Setting)
Setting range Default
• Control System Control System
Execution Execution
• Both Systems
Executions
26 REDUNDANT FUNCTION
26.6 Program Execution in Both Systems
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