Operator control functions via PROFIBUS
7.13 Reset
SITRANS P DS III with PROFIBUS PA
128 Operating Instructions, 06/2013, A5E00053276-07
Resetting to delivery state
If the pressure transmitter is so maladjusted that it can no longer fulfill its measurement
tasks, you can use this function to reset it to the factory settings. It resets all parameters to
the factory settings, with a few exceptions.
The exceptions are:
● PROFIBUS address
● Device operation type
● Static version number
– In Transducer Block 1
– In the analog input function block
The reset is indicated by the diagnostic message "New start executed". The automation or
control system reads the status "Unsure, initial value, value constant" until a measured value
result is available.
Resetting the PROFIBUS address (Page 128)
Device operation type (Page 88)
With a warm start, you cause the pressure transmitter to switch itself off and restart. This
interrupts and then reestablishes communication.
You need this function, for example, if the PROFIBUS address is changed during running
communication with a cyclical master.
This restart is indicated by the diagnostic message "Restart executed". The automation or
control system reads the status "Unsure, initial value, value constant" until a measured value
result is available.
Resetting the PROFIBUS address
If no other pressure sensor in your system has the preset address 126, you can add your
transmitter to the PROFIBUS strand during running operation of the automation or control
system. Then you must change the address of the newly connected unit to a different value.
If you remove the transmitter from the PROFIBUS chain, reset its address to 126. This
allows you to include the transmitter in this or another system if necessary.
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