Siemens SITRANS F Series Operating Instructions Manual page 76

Diagnostics and troubleshooting
11.2 Device status symbols (chart)
Local display
- Siemens standard
Symbol Device sta‐
tus
Maintenance
demanded
Cause: Output signal is still valid, but wear reserve is almost exhausted and/or a function will be limited soon.
Action: Maintenance is strongly recommended as soon as possible.
Maintenance
required
Cause: Output signal is still valid. No functional restriction detected but end of wear reserve expected in next weeks.
Action: Maintenance of device should be planned.
Manual oper‐
ation
Cause: Output signal temporarily invalid (e.g. frozen) due to work being performed on the device.
Action: Disable manual mode via HMI or engineering system.
Simulation or
substitute val‐
ue
Cause: Output signal temporarily does not represent the process because output based on a simulation value.
Action: Disable simulation mode via HMI or engineering system or restart device.
Out of service
Cause: Output signal does not represent process value. Device mode is set to "Out of service".
Action: Disable "Out of service" and enable normal operation.
Configura‐
tion error
Cause: Output signal invalid due to parameter setting, connection error or configuration error in the HW.
Action: Check hardware configuration or parameter settings of the device via HMI or engineering system.
Process value
alarm
Cause: Deviations from permissible ambient or process conditions detected by the device (through self-monitoring, or warn‐
ings / faults in the device) indicate that the measured value is unreliable or deviations from the set value in the actuators is most
likely greater than anticipated under normal operating conditions. Process or ambient conditions will damage the device or
result in unreliable output.
Action: Check ambient temperature or process conditions. If possible, install device at different location.
76
SIMATIC PDM/PLC
Priority **
2
3
4
5
6
7
8
Symbol
(red)
Operating Instructions, 11/2021, A5E50387341-AA
Device sta‐ Priority **
tus
Maintenance 2
demanded
Maintenance 3
required
Manual oper‐ 4
ation
Simulation or 5
substitute val‐
ue
Out of service 6
Configura‐ 7
tion error
Process value 8
alarm
SITRANS FST090