Interrupts Of Sm 322; Do 8 X Dc 24 V/0.5 A - Siemens SIMATIC S7-300 Manual

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3.24 Digital output module SM 322; DO 8 x DC 24 V/ 0.5 A; with diagnostics interrupt; (6ES7322-8BF00-0AB0)

Interrupts of SM 322; DO 8 x DC 24 V/0.5 A

Introduction

The SM 322; DO 8 x DC 24 V/0.5 A can trigger diagnostic interrupts.

For detailed information on the OBs and SFCs mentioned below, refer to the

Enabling interrupts

There is no default interrupt setting, i.e. interrupts are disabled if parameters are not set

accordingly. Program the interrupt enable parameter in STEP 7.

Diagnostic interrupt

When diagnostic interrupts are enabled, incoming error events (initial occurrence) and

outgoing error events (error is cleared) are reported by means of an interrupt.

The CPU interrupts user program execution, and executes diagnostic interrupt OB82.

You can call SFC 51 or 59 in OB82 in the user program to view detailed diagnostic data

output by the module.

Diagnostics data remain consistent until the program exits OB 82. The module

acknowledges the diagnostic interrupt when the program exits OB82.

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