Siemens SITRANS P DS III - Page 163

Configuration/project engineering
9.2 Configuring
SITRANS P DS III with PROFIBUS PA
Operating Instructions, 06/2013, A5E00053276-07
163
The diagnostic object consists of four bytes. For the pressure transmitter, only the first two
bytes are relevant.
Table 9- 5 Diagnostic messages
Byte
Bit
Meaning of "1"
Cause
Measure
Byte 0
0
1
2
3 Electronics
temperature too high
The transmitter monitors
the temperature of the
transmitter electronics. If
this exceeds 85 °C, this
message will be
generated.
Reduce the ambient
temperature to the allowed
range.
4 Memory error During operation, the
memory of the cells and
the electronics is
continually checked for
checksum errors and
read/write errors. In case
of error, this message is
generated.
Replace the electronics
and, if necessary, the
sensor.
5 Error recording
measured value
In case of sensor failure or
the violation of control
limits (< -20% or > +20%
of the nominal
measurement range)
Have a service technician
check the sensor.
6
7
Byte 1
0
1
2
3 Restart executed (goes
to "0" after 10 seconds)
Power was applied to the
device, or a warm start
was performed using
SIMATIC PDM, or the
internal watchdog
triggered.
Check the wiring and the
supply voltage.
4 New start
Goes to "0" after 10
seconds
The device was reset to
the factory settings.
5 Service necessary A calibration or service
interval has run out.
Perform the calibration or
service and clear the
message and reset the
messages using SIMATIC
PDM.
6