Evaluation Of Interrupts With Profinet Io - Siemens SIRIUS M200D Manual

Diagnostics
7.5 Diagnostics with STEP 7 on PROFINET IO
7.5.1

Evaluation of interrupts with PROFINET IO

Introduction
The I/O device generates interrupts as a reaction to specific error events. Interrupts are
evaluated depending on the I/O controller used.
Evaluating interrupts using an IO controller
The M200D PROFINET motor starter supports the following interrupts:
● Diagnostics interrupts
● Swapping interrupts
An interrupt automatically initiates execution of the interrupt OBs in the CPU of the I/O
controller (see the
"Program design".
Information on the cause and class of the error is already available based on the OB number
and start information.
You can obtain detailed information on the error event in the error OB by calling SFB 54
RALRM (read supplementary interrupt information).
Triggering of a diagnostics interrupt
When an incoming or outgoing event (e.g., a wire break) is registered, the module triggers a
diagnostics interrupt Diagnostics interrupt" is set.
The CPU interrupts the user program and executes the diagnostics block OB 82. The
interrupt triggering event will be logged in the start information of OB 82.
Triggering a swapping interrupt
The CPU interrupts the user program and executes the diagnostics block OB 83. The
interrupt triggering event will be logged in the start information of OB 83.
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System Software for S7-300/S7-400 Programming Manual
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M200D PROFIBUS/PROFINET
Manual, 08/2014, A5E01577426A/RS-AA/004