PROline Promag 23
5 Operation
Hauser
47
5.4
Communication (HART)
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 (see Page 34).
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 FieldTool),
require device description (DD) files which are used to access all the information in a
HART device. Information is exclusively transferred using so-called “commands”. There
are three different command groups:
Universal commands:
All HART device support and use universal commands. The following functionalities are
linked to them:
Identify 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 stan-
dard. Such commands access individual field device information, amongst other things,
such as empty/full pipe calibration values, low flow cut off settings, etc.
!
Note:
Promag 23 has access to two command classes. On Page 48, you will find a list with all
the supported “Universal Commands”.
5.4.1
Operating options
For the complete operation of the field device, including device-specific commands,
there are Device Description (DD) files available to the user to provide the following ope-
rating aids and programs:
HART Communicator DXR 275
Selecting device functions with a HART Communicator is a process involving a number
of menu levels and a special HART function matrix.
The HART Communicator manual
contains more detailed information on the device.
FieldTool operating program
FieldTool is a universal service and configuration software package designed for the
PROline field devices. Connection is by means of a HART-Modem, e.g. Commubox FXA
191.
The functionality of FieldTool includes the following:
Configuration of device functions
Visualization of measuring values (including data logging)
Data backup of device parameters
Measuring-point documentation
You can find more information on FieldTool in the following E+H document:
System Information: SI 031D/06/en “FieldTool”
Содержание PROline promag 23
Страница 4: ...Contents PROline Promag 23 4 Endress Hauser ...
Страница 10: ...2 Identification PROline Promag 23 10 Endress Hauser ...
Страница 30: ...3 Installation PROline Promag 23 30 Endress Hauser ...
Страница 40: ...4 Wiring PROline Promag 23 40 Endress Hauser ...
Страница 52: ...5 Operation PROline Promag 23 52 Endress Hauser ...
Страница 56: ...6 Commissioning PROline Promag 23 56 Endress Hauser ...
Страница 58: ...7 Maintenance PROline Promag 23 58 Endress Hauser ...
Страница 102: ...10 Technical data PROline Promag 23 102 Endress Hauser ...
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