PROFINET IO
6.4 Interrupt, error and system messages
3WA Air Circuit Breaker Communication
68
System Manual, 11/2021, 92310000004-02
Block type for maintenance information
The COM190 uses the "Maintenance information" block type to signal that maintenance
information is pending. The "UserStructureIdentifier" for the maintenance information block
is 0x8100.
Structure of the maintenance information
Meaning
Length
UserStructureIdentifier
0x8100 (Maintenance)
2 bytes
BlockType
0x0F00 (MaintenanceItem)
2 bytes
BlockLength
0x0008
2 bytes
BlockVersion
0x0001
2 bytes
Reserved
0x0000
2 bytes
MaintenanceStatus
1: Maintenance required
2: Maintenance demanded
4 bytes
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