Interrupt, error, and system messages
4.5 Evaluating the interrupts of the ET 200S
Interface module IM151-1 STANDARD (6ES7151-1AA06-0AB0)
Manual, 07/2015, A5E01075950-AD
57
Evaluating the interrupts of the ET 200S
Introduction
In the case of certain process states/errors, the DP slave saves one interrupt block for each
process state or error, containing the relevant information, in the diagnostic frame (DPV1
interrupt mechanism). Regardless of this, the diagnostic status of the DP slave is tracked in
the identifier-related diagnostics, the module status, and the channel-specific diagnostics.
For DPV0 mode, no interrupts are defined in accordance with the PROFIBUS standard. This
means that interface modules do not trigger an interrupt in DPV0 mode.
The ET 200S supports the following interrupts:
● Diagnostic interrupts
● Process interrupts
● Remove/insert module interrupts
Requirements: Interrupts are only supported when you run the ET 200S with IM151-1
STANDARD interface modules (6ES7151-1AA04-0AB0 or higher) in DPV1 mode.
In the event of an interrupt, interrupt OBs are automatically executed in the CPU of the DP
master (see information on program design in the
System Software for S7-300/S7-400
Programming Manual).
Triggering a diagnostic interrupt
When an incoming or outgoing event (e.g., a wire break) is registered, the module triggers a
diagnostic interrupt if "Enable: Diagnostic interrupt" is set.
The CPU interrupts processing of the user program and processes the OB 82 diagnostic
block instead. The event that triggered the interrupt is entered in the OB 82 start information.
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