Mitsubishi MELSEC iQ R Redundant Control System
Mitsubishi MELSEC iQ R Redundant Control System
MELSEC iQ-R redundant control pairs a compatible process CPU with an R6RFM redundant-function module in a documented primary/standby architecture. CPU, power, network and remote-I/O redundancy are distinct configuration choices.
Review Summary
Consider this iQ-R architecture when a process requires a defined response to identified control-system failures. Specify the complete duplicated paths and verify switchover with the actual application; redundancy alone does not establish a safety integrity level or eliminate every common failure.
Price and Availability
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- Manufacturer: Mitsubishi Electric
- Model: Mitsubishi MELSEC iQ R Redundant Control System
- Reviewed architecture: MELSEC iQ-R process CPU with redundant-function modules
- Redundant module: R6RFM
- Control arrangement: Primary and standby systems
- Tracking connection: Specified multimode optical cable
- Engineering: Compatible GX Works3 project and supported module revisions
- Safety distinction: SIL2 process CPU packages are separately specified products






















