Mitsubishi Electric MELSEC iQ-R Series User Manual page 748

(0) A hub connection has been confirmed.
(5) A hub disconnection has been detected.
(10)The hub connection is being attempted.
(14)Enables the system switching by a user and executes the system switching in the control system.
(22)Enables/disables the system switching in the standby system.
• According to the environment in which the systems are used, change conditions or a timer value used for
the system switching.
• For a communication error monitoring time, set a value in the range of a few seconds to a few tens of
seconds. Setting the monitoring time too short may cause a system switching due to noise.
APPX
746
Appendix 12 Program for System Switching at Built-in Ethernet Communication Error