HART is a widely used communication standard for field devices. HART devices are specified by the FieldComm Group.
The HART standard expands the analog 4 to 20 mA signal to modulated, industry-tested, digital signal transmission.
HART is a widely used communication standard for field devices. The HART-Standard expands the analog 4- bis 20-mA signal into a modulated, industry-standard digital HART signal.
The advantage is the combination of field-tested analog measured value transmission and simultaneous digital communication with bi-directional, acyclic transmission, making it possible to transfer diagnostic, maintenance and process information from field devices to higher-level systems. Standardized sets of parameters can be used for cross-vendor operation of all HART devices.
HART Device Descriptions (EDD) are used to integrate HART devices in SIMATIC PDM ensuring easy operation and commissioning of field devices even in hard-to-reach locations.
Key Benefits
- Tried-and-tested analog measured value transmission
- Simultaneous digital communication with bidirectional data transfer
- Possibility to transfer multiple measured variables from a field device (e.g. diagnostics, maintenance and process information)
- Connection to higher-level systems such as PROFIBUS DP.
- Easy installation and commissioning
Benefits in connection with SIMATIC PDM
- Manufacturer-neutral operation of all HART devices through standardized parameter sets
- HART field devices described by HART DLL are integrated in SIMATIC PDM via the Fieldcomm catalog. HART-DD (Device Description) in SIMATIC PDM standardized, manufacturer-neutral and very widely used. Additional field devices are integrated in SIMATIC PDM via EDD (Electronic Device Description)
- Simple operation and commissioning of field devices, even in usage locations that are difficult to access
- Advanced diagnostics, evaluating and logging functions
Technical Specifications
Integration
Siemens field devices listed in this catalog for process automation that can be controlled with HART:
Measuring instruments for pressure
- SITRANS P300
- SITRANS P310
- SITRANS P320
- SITRANS P DS III
- SITRANS P410
- SITRANS P420
- SITRANS P500
Measuring instruments for temperature
- SITRANS TF
- SITRANS TH300
- SITRANS TH320
- SITRANS TH420
- SITRANS TR300
- SITRANS TR320
- SITRANS TR420
- SITRANS TW
Flowmeters
- SITRANS FM MAG 5000
- SITRANS FM MAG 6000 19″ / IP67
- SITRANS FM MAG 6000 I / I Ex
- SITRANS FM TRANSMAG 2
- SITRANS FC MASS 6000 19″ / IP67 / Ex d
- SITRANS FC FCT030
- SITRANS FS FST030
- SITRANS FUS060
- SITRANS FX300
- SITRANS FX330
Level meters
- SITRANS Probe LR
- SITRANS Probe LU
- SITRANS LUT400
- SITRANS Probe LU240
- SITRANS LR200
- SITRANS LR250
- SITRANS LR260
- SITRANS LR460
- SITRANS LR560
- SITRANS LG 240 / LG 250 / LG 260 / LG270
Electropneumatic positioners
- SIPART PS2
Power supply units and isolation amplifiers
SITRANS I
Application
Devices can be connected in different ways:
- Through the distributed I/O
– SIMATIC ET 200M, ET 200SP
– SIMATIC ET 200iSP with the HART modules
or with analog modules 4 to 20 mA and HART Handheld Communicator, - via a HART modem with which a point-to-point connection between the PC or Engineering System and the HART device can be established
- via HART multiplexers which are contained in the HART server of the HCF.
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