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A-7
Appendices
CJ-series PROFINET IO Controller Unit Operation Manual for NJ-series CPU Unit (W511)
App
A-2-
1 Introd
uction
A-2 PROFINET IO Alarm Messages
PROFINET IO is capable of sending events within the automation process as alarms. These alarms
have to be acknowledged by the application process. These include both system-defined events (i.e.
Removal of slices) or userdefined events (i.e. Input voltage out of range).
The following events are distinguished:
PROFINET IO Devices supports sending PROFINET IO Alarm message for different error conditions.
The IO Device supports the following alarm events:
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.
A-2-1
Introduction
Alarm Type
Description
Process Alarms
Events from the process, which are sent to the control system.
Diagnostic Alarms
Events indicating a malfunction of a field device.
Maintenance Alarms
Events relating to preventive maintenance to avoid device breakdown.
Manufacturer Specific Diag-
nostics
Events relating to events specific for the manufacturer.
Alarm Type
Description
Pull Alarm
When a SmartSlice I/O Unit slice module is removed during normal operation a Pull Alarm
event is generated (see note 1).
Plug Alarm
When the (correct) SmartSlice I/O Unit slice module is placed back at the correct position a
Plug Alarm event is generated.
Plug Wrong Submodule
In case the configuration downloaded to the PROFINET IO Controller does not match the phys-
ical SmartSlice I/O Unit configuration of the Unit a Plug Wrong Submodule alarm event is gen-
erated (see note 2).
A-2-2
Alarm Messages
Byte
Name
Description
0 to 1
Reference
The reference number of the sender.
2
Priority
The priority of the alarm.
3
Alignment
Reserved.
4 to 5
Type
The alarm type:
•
value 0003 Hex: Pull Alarm,
•
value 0004 Hex: Plug Alarm,
•
value 000A Hex: Plug Wrong Submodule.
6 to 9
API
The API.
10 to 11
Slot
The number of the slot that has the alarm.
12 to 13
Subslot
The number of the subslot having the alarm.
14 to 17
ModuleIdent
The Ident number of the slot.
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