Chapter 10 Operating Instructions
Flexi Classic Gateways
136 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8011834/YT28/2016-03-15
Subject to change without notice
PROFINET IO Gateway
10.4.3 Alarms
Alarms can be read acyclically through the PROFINET IO alarms infrastructure. Once any
Flexi Classic module faults, the PROFINET IO gateway raises the appropriate diagnostic
a
larm to the network. This will trigger the fault LED on the PLC, and make the specifics
(text and help) of the diagnostic alarm available through the SIMATIC PLC interface.
The RALRM function block (SFB54) in OB82 (the diagnostic interrupt) allows the user to
retrieve specifics on the alarm raised within the PLC program itself.
The alarm type describes the class and code of the fault and the channel indicates which
Flexi Classic module is experiencing the fault.
The same diagnostic information is available through the web server of the gateway.
Refer to section 10.5.2 for details.
Note
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