Proline Promass 80
Operation
Hauser
35
5.4
Communication
In addition to local operation, the measuring device can be configured and measured values can be
obtained by means of the HART protocol. Digital communication takes place using the 4–20 mA
current output HART
The HART protocol allows the transfer of measuring and device data between the HART master and
the field devices for configuration and diagnostics purposes. The HART master, e.g. a handheld
terminal or PC-based operating programs (such as FieldCare), require device description (DD) files
which are used to access all the information in a HART device. Information is exclusively transferred
using "commands". There are three different command groups:
•
Universal Commands
Universal commands are supported and used by all HART devices. The following are examples of
functions connected with them:
– Recognizing HART devices
– Reading digital measured values (volume flow, totalizer etc.)
•
Common practice commands
Common practice commands offer functions which are supported and can be executed by most
but not all field devices.
•
Device-specific commands
These commands allow access to device-specific functions which are not HART standard.
Such commands access individual field device information, among other things, such as
empty/full pipe calibration values, low flow cut off settings, etc.
!
Note!
The measuring device has access to all three command classes.
List of all "Universal Commands" and "Common Practice Commands"
37.
5.4.1
Operating options
For the complete operation of the measuring device, including device-specific commands, there are
DD files available to the user to provide the following operating aids and programs:
!
Note!
The HART protocol requires the "4 to 20 mA HART" setting (individual options see device function)
in the CURRENT SPAN function (current output 1).
HART handheld terminal Field Xpert
Selecting device functions with a HART Communicator is a process involving a number of
menu levels and a special HART function matrix.
The HART manual in the carrying case of the HART Communicator contains more detailed
information on the device.
Operating program "FieldCare"
FieldCare is Hauser’s FDT-based plant asset management tool and allows the configuration
and diagnosis of intelligent field devices. By using status information, you also have a simple but
effective tool for monitoring devices. The Proline flowmeters are accessed via a HART interface
FXA195 or via the service interface FXA193.
Operating program "SIMATIC PDM" (Siemens)
SIMATIC PDM is a standardized, manufacturer-independent tool for the operation, configuration,
maintenance and diagnosis of intelligent field devices.
Operating program "AMS" (Emerson Process Management)
AMS (Asset Management Solutions): program for operating and configuring devices
