Hot-Swapping Ic693/Ic694Bem331 Modules - Emerson PACSystems RX3i User Manual

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User Manual
GFK-2409B
A-3

Hot-Swapping IC693/IC694BEM331 Modules

Genius Bus Controller modules IC693/694BEM331 that are included in a Max-ON
redundancy system should not be removed from or installed in the PLC that is operating as
a Master. If a module is removed from the Master and then reinstalled, the outputs for that
module will not be enabled until the next Backup-to-Master transition.
Note:
System Consideration
Any time a Genius bus controller is removed or installed in an active system, there is a
possibility that the bus may be disrupted with a subsequent impact on the corresponding I/O
devices. For systems that require online maintainability, it is recommended that dual
(redundant) Genius busses be used
Appendix A
Oct 2019
110

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