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Operate
6.3 Description of the operating functions
SITRANS P500 with HART
Operating Instructions, 12/2014, A5E02344528-09
143
6.3
Description of the operating functions
This sub-section provides relevant additional information on communication and certain
parameters. Certain parameters require background knowledge which is provided here by
graphics and/ or examples.
6.3.1
Operating functions through HART communication
Prerequisite
You can operate the pressure transmitter through HART communication. The following is
required for this purpose:
●
A HART communicator or PC software such as SIMATIC PDM.
●
A HART modem to connect the PC to the pressure transmitter, or a HART communicator.
Introduction
The full functionality of the pressure transmitter is available via HART communication. The
HART communicator and PC software are not supplied with the pressure transmitter. How to
connect and operate a HART communicator or the PC software is described in separate
operating instructions or in the online help for both these tools.
Fundamental description
The output signal is provided in the form of digital information in the following variables
through HART communication:
●
Pressure
●
Level
●
Volume
●
Mass
●
Volume flow
●
Mass flow
●
A "User characteristic" to which parameters can be freely assigned
As soon as you have set up the HART communication and the pressure transmitter, you can
adapt the pressure transmitter to your relevant measuring task. In doing so, you can support
the selectable measurement types "pressure", "level", "mass", volume", "volume flow", "mass
flow" and "user characteristic". One or more device variables are permanently allocated to
each measuring mode in order to execute corresponding measuring tasks.
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