Siemens SIMATIC ET 200S Manual page 158

Commissioning and Diagnostics
6.5 Evaluating the interrupts of the ET 200S
Introduction
Interrupts are triggered by the DP slave in the event of specific errors occurring.
Interrupt evaluation differs depending on the DP master used.
Evaluating interrupts with an S7 DP master or DPV1 master
The ET 200S supports the following interrupts:
• Diagnostic interrupts
• Hardware interrupts
• Insert/Remove-module interrupts
Prerequisite: Interrupts are only supported when you run the ET 200S with the
IM151-1 HIGH FEATURE interface module (in DPV1 operation).
In the event of an interrupt, interrupt OBs are automatically executed in the CPU of
the DP master (see the programming manual System Software for S7-300/
S7-400, Program Design).
Evaluating interrupts with other DPV0 masters
If you run the ET 200S with a DPV0 master or as a standard DP slave, no
interrupts are generated.
Triggering of a diagnostic interrupt
In the case of an incoming or outgoing event (e.g. wire break), the module triggers
a diagnostic interrupt (provided diagnostic interrupts are enabled).
The CPU interrupts processing of the user program and processes the diagnostic
block OB82 instead. The result that led to the triggering of the interrupt is entered
in the start information of OB82.
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ET 200S Distributed I/O System
EWA-4NEB780602402-09