Transferring Diagnostic Alarms To The Controller: Profibus - Siemens SIPLUS HCS Operating Instructions Manual

10.3.2

Transferring diagnostic alarms to the controller: PROFIBUS

Diagnostic alarms
Diagnostic alarms are transferred as diagnostic interrupts. The PROFIBUS device
identification number is required for identifying a diagnostic interrupt.
The HCS4300 has the identification number 81C5h.
The evaluation in SIMATIC is performed via I/O_FLT1 (OB82) and RALRM (SFB54).
Structure of the diagnostic alarm
The interrupt message consists of 4 bytes of header (standardized) and 4 bytes of user-
specific data. These are to be interpreted as follows:
Byte
4.5
6.7
SIPLUS HCS4300
Operating Instructions, 11/2015, A5E35452705A/002
Description
Channel number
The following applies for channel numbers:
Channel number = 0: Diagnostic information relates to one module (CIM, POM,
•
PM)
Channel numbers <> 0: Diagnostic information relates to one channel (for POM,
•
PM only)
The channel numbers are counted across the entire HCS.
Error type (see Auto-Hotspot)
10.3 Transfer of diagnostic alarms to the controller
Communications
95