Mode Of Operation Of The Hart Function - Siemens SIPART PS2 Operating Instructions Manual

3.4.2

Mode of operation of the HART function

Note
Priority of operation / failure of power supply
• Operation at the positioner has priority over specifications from the HART communicator.
• Failure of the auxiliary power to the positioner also interrupts communications.
Function
The positioner is also available with built-in HART functionality. The HART protocol allows
you to communicate with your device using a HART communicator, PC, or programming
unit. You can do the following with your device:
● Convenient configuration
● Store configurations
● Call up diagnostic data
● Show online measured values
Communication takes place as frequency modulation on the existing signal lines for the
setpoint of 4 to 20 mA.
The positioner is integrated into the following parameter assignment tools:
● HART communicator
● PDM (Process Device Manager)
● AMS (Asset Management System)
SIPART PS2 with and without HART
Operating Instructions, 02/2016, A5E00074631-AB
Description
3.4 Mode of operation
31