Siemens SIMATIC ET 200S - Diagnostic Messages of the Electronic Modules

Commissioning and Diagnostics
6-22
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
6.1.4 Diagnostic messages of the electronic modules
Actions after a diagnostic message in DPV0 operation
The error is entered in the diagnostic frame in the channel-specific diagnosis:
• The SF LED on the interface module comes on.
• Several simultaneous diagnostic messages are possible.
Actions after a diagnostic message in DPV1 operation
Every diagnostic message leads to the following actions:
• Diagnoses can be reported as diagnostic interrupts in DPV1 operation.
• After a diagnostic message this is:
-- Entered in the diagnostic frame as a diagnostic interrupt block
(always only one interrupt)
-- Stored in the diagnostic buffer of the CPU
• The SF LED on the interface module comes on.
• The OB 82 is called. If OB 82 is not available, the CPU goes into STOP mode.
• Acknowledgment of the diagnostic interrupt (following this a new interrupt is
possible).
Causes of Errors and Remedies
The causes of the errors and the action to be taken when specific diagnostic
messages appear are described in Section 6.1.6.8.