Precautions For Redundant System Configuration - Mitsubishi Electric MELSEC iQ-R Series Configuration Manual

Precautions for redundant system configuration

Redundant configuration of basic systems
• Use a Process CPU (redundant mode) as a CPU module.
• Use modules of the same model, and mount them on the same slots in the system A and system B.
• An extension base unit cannot be mounted on a main base unit on which a redundant function module is mounted. If the
maximum number of mountable modules is exceeded, built a CC-Link IE Field Network and use a remote head module for
extension.
• A multiple CPU system cannot be configured with a Process CPU (redundant mode).
• When a firmware version of a process CPU (redundant mode) to be used is "06" or earlier, use the process CPUs with a
firmware version "06" or earlier in both systems.
1 SYSTEM CONFIGURATION
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1.4 Precautions for System Configuration