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Diagnostics and troubleshooting
12
12.1
Device status symbols
The device status is displayed on the display with the help of symbols. In addition, you can
view the symbol and the corresponding text message for each device status in the remote
engineering, asset management or in the process control systems.
Alarms are displayed via local operation in the measurement view as symbol in the bottom
line of the display. If multiple diagnostic states are pending at the same time, the symbol for
the most critical status is displayed.
Properties of the device status
The table below shows the possible causes for the device status and measures for the user
or service.
The symbols used for the display are based on NAMUR status signals, while the symbols used
in SIMATIC PDM are based on standard diagnostic classes from Siemens.
Note
Priority conflict in the device status – NAMUR vs. Siemens standard
A priority conflict can arise when multiple diagnostic events are pending at the same time. In
this case, the NAMUR symbol on the local display differs from the symbol displayed in SIMATIC
PDM.
● Example: If both diagnostic states "Maintenance demanded" and "Configuration errors" are
pending
– The display (used NAMUR symbols) shows "Configuration errors" with a higher priority.
– SIMATIC PDM (uses Siemens standard symbols) shows "Maintenance demanded" with
higher priority.
Note the priority of the device status depending on the interface used.
Note
Priorities of the NAMUR device status
This device only used the priorities of the NAMUR device status based on the HCF
specification.
The order of the symbols in the table corresponds to the priority of the device status, starting
with the most critical message.
SITRANS P320/P420 (mA/HART)
Operating Instructions, 06/2018, A5E44852162-AA
181