Hot Swap Of I/O Modules - GE PACSystems RX3i User Manual

5.3 Hot Swap of I/O Modules

If a module is hot extracted (removed with power applied to the RX3i CEP carrier), the RX3i CEP detects the
removal and generates a PROFINET Pull Alarm. When the RX3i CEP Carrier is connected to a PACSystems IO-
Controller, the Pull Alarm is reported as a Loss of I/O Module fault and all point faults for the missing module
have the corresponding Fault Contact on.
When a module is hot inserted, the RX3i CEP Carrier detects the insertion and determines whether the
configuration expects the module to be present or not.
•
If the module is not present in the configuration, no alarm or fault is generated. The module remains
idle at its default state.
•
If a module is inserted while the RX3i CEP has an established PROFINET connection and the module
does not match the configured module, including any hardware setting such as a DIP Switch position,
a PROFINET Plug Wrong Submodule alarm is generated. This appears as a System Configuration
Mismatch fault in RX3i systems. Fault Contacts for the module remain in the Fault (on) state.
•
If a module is inserted while the RX3i CEP has an established PROFINET connection and the module
matches the configured module, a PROFINET Plug Alarm is generated. This appears as an Addition of
I/O Module I/O fault in RX3i systems. The module is configured using the established PROFINET
connection and once the I/O module is ready, I/O will start scanning and point fault contacts will
transition to reflect any change in the state of the I/O.
Operation must continue to comply with PACSystems Hot Insertion and Removal requirements as
documented in the PACSystems RX3i System Manual, GFK-2314. This depends mostly on the timing
requirements for physically seating a module.
GFK-2883E March 2018
Chapter 5. Operation
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