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

10.3.2

Transferring diagnostic alarms to the controller: PROFIBUS

Diagnostics alarms
Diagnostic alarms are transferred as diagnostic interrupts. The PROFIBUS device
identification number is required for identifying a diagnostic interrupt.
The HCS4200 has the identification number 81C4.
The evaluation in SIMATIC is performed via I/O_FLT1 (OB82) and RALRM (SFB54).
Structure of the diagnostics alarm
The alarm 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 HCS4200
Operating Instructions, 11/2015, A5E35066204A/RS-AA/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 power channel numbers are counted across the entire HCS.
Error type (see Manufacturer-specific error codes (Page 104))
10.3 Transfer of diagnostic alarms to the controller
Communications
103