Hart Function - Siemens SIMATIC ET 200SP HA Manual

HART function

Definition
"HART" stands for "Highway Addressable Remote Transducer".
Using the HART functionality, you can exchange data between the I/O module and the
connected field devices. The HART protocol is generally accepted as a standard protocol for
communication with intelligent field devices: HART is a registered trademark of the HART
Communication Foundation (HCF), which owns all the rights to the HART protocol. You can
find detailed information about HART in the HART specification.
Advantages of HART
Use of the AI 16xI 2-wire HART HA gives you the following advantages:
● Connection compatibility with standard analog modules: Current loop 4 - 20 mA
● Additional digital communication via the HART protocol, HART communication (Rev. 5 to
Rev. 7)
● Numerous field devices with HART functions are in use
● I/O module enables application of HART devices on an IO device based on ET 200SP HA
Use in the system
The I/O module is used in an IO device based on the ET 200SP HA.
You can connect a HART field device to each channel (monodrop mode).
The I/O module serves as HART master, the field devices as HART slaves.
The maximum 16 channels communicate in parallel.
Analog Input Module AI 16xI 2-wire HART HA ( 6DL1134-6TH00-0PH1)
Manual, 11/2017, A5E39408968-AB
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