Siemens SIWAREX WP321 Manual

Communication in SIMATIC S7-300/1200/1500
11.10 Diagnostics interrupts
SIWAREX WP321
Manual, 07/2014, A5E33715669A-02
105
11.10
Diagnostics interrupts
The enable for triggering of diagnostics interrupts is possible for all SIMATIC CPUs (S7-300,
S7-400, S7-1200, S7-1500) and is assigned in the device configuration.
The diagnostics interrupts can be evaluated to detect fault events in the SIMATIC CPU.
Fault events (operating faults) are signaled by a diagnostics interrupt to the S7 CPU if the
diagnostics interrupt is enabled (in the HW Config). You can evaluate the diagnostics
messages using the local data of OB82. Contrary to the S7-1200 and S7-1500, the CPUs of
the S7-300 and S7-400 systems enter the stop status following a diagnostics interrupt if the
OB82 is not loaded.
Detailed information can be obtained using the "RALARM" instruction (read interrupt status).
11.11
Hardware interrupts
The enable for triggering of hardware interrupts is assigned in the device configuration.
If an event occurs that is to trigger a hardware interrupt and the same previous event has not
yet been processed, no further hardware interrupt is triggered. The hardware interrupt is lost.
This may lead to the "Hardware interrupt lost" diagnostics interrupt, depending on the
parameterization.

Siemens SIWAREX WP321 Specifications

General

Brand	Siemens
Model	SIWAREX WP321
Category	Accessories
Language	English