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

Chapter 5. Operations

Hot Swap of I/O Modules

5.3
If an I/O module is removed while power is applied to the I/O rack (hot extracted), the resident PNS detects
the removal and generates a PROFINET Pull Alarm. When the PNS is connected to a PACSystems PNC, the
Pull Alarm is reported as a Loss of I/O Module fault. At the RX3i Controller, all point faults corresponding to
the missing module will have the Fault Contact asserted.
When an I/O module is hot inserted into its rack, the PNS 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 PNS 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 PLC Fault in RX3i systems. Fault Contacts corresponding to the mismatched module remain
in the Fault (on) state.
• If a module is inserted while the PNS 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 comply with the conditions outlined in the Hot Insertion and Removal section in the
PACSystems RX3i System Manual, GFK-2314.
Note: The PNS module should not be installed or removed while power is applied to the system. System
power must be removed before installing or removing the module.
56 PACSystems* RX3i PROFINET IO-Scanner User Manual GFK-2737F