Profinet Io Alarm Messages; Introduction - Omron CJ1W-PNT21 Operation Manual

B-1

Introduction

PROFINET IO Devices supports sending PROFINET IO Alarm message for different error conditions. The IO
Device supports the following alarm events:
/i
Alarm type
Pull Alarm
Plug Alarm
Plug Wrong Submodule
Appendix B

PROFINET IO alarm messages

Description
When a Slice I/O Unit is removed during normal
operation a Pull Alarm event is generated (see note 1).
When the (correct) Slice I/O Unit is placed back at the
correct position a Plug Alarm event is generated.
In case the configuration
PROFINET IO Controller does not match the physical
Slice I/O Unit configuration of the Unit a Plug Wrong
Submodule alarm event is generated (see note 2).
Note 1 In case multiple alarm events (more than two) are generated at the same time, it is
possible alarm events will be discarded.
2 When multiple Slice I/O Units do not match with the PROFINET IO Configuration,
only one Plug Wrong Submodule alarm event is generated for the first mismatching
Slice I/O Unit.
downloaded to the
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