Siemens SIMATIC PCS 7, Руководство по обслуживанию

Страница: 79 / 146

Fault - What should I do?
7
7.1 Activity in the event of a fault
Basic procedure in the event of a fault
1. Evaluate the messages with regard to the following aspects:
– Time
– Sequence
– Source
2. Determine the location and area of the fault.
Note
If the components you are using do not have diagnostics capability, only secondary faults
are signaled.
– Use diagnostic tools to analyze the fault. You can achieve the following with the
diagnostic tools:
You can find the cause of a fault.
or
You can verify the presumed cause of a fault.
– You can find the following information in the section "Diagnostics for PCS 7" for support:
The diagnostic tools available for PCS 7
Applications for the various diagnostic tools according to subsystem
Note
Make use of skilled experts if you cannot find a solution to your problem based on
available information. For information on this topic, refer to the section "Additional
support (Page 65)" of this documentation.
3. Determine the actions to be taken.
In a running plant: check if a stop is necessary.
Note
Please note the following:
● The following actions may only be carried out by qualified personnel and in compliance
with valid statutory provisions and plant-specific rules:
– Changes to the configuration
– Replacement of and changes to components
● Bear in mind that uncharacteristic situations can occur in the plant after activation. Make
sure the activation of components and secondary systems is carefully directed.
Service Support and Diagnostics (V8.2)
Service Manual, 03/2016, A5E36200111-AA
79