Siemens SIMATIC PCS 7 Operating Manual page 123

When an online connection is being established, an identification check is performed initially.
After this, the device status is determined, and the device is depicted with the corresponding
icon.
Note
It is possible to disable the diagnostics update.
Diagnostic information
The diagnostics provides the following categorized information:
● Communication
● Process
● Maintenance
● Configuration
● Operating mode
Help for SIMATIC PDM (V8.2)
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– Communication with the device was good
– Communication was good, but the device does not support further diagnostics
– Communication faulty
– Device assignment error
– Device unchecked
– Device deactivated
– Measured value alarm
– Measured value warning
– Measured value tolerance
– Maintenance alarm
– Maintenance warning
– Maintenance required
– Configuration error
– Configuration warning
– Configuration changed
– Manual mode
– Simulation or substitute value
– Out of service
Functions
7.6 Diagnostics
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