WAGO-I/O-SYSTEM 750
Operating Modes
59
750-484 2 AI 4-20 mA HART Ex i
Manual
V 1.2.0 HW-Version 04, SW-Version 03
This solution includes the use of the PROFIBUS communications mechanisms
without change to the PROFIBUS protocol and services, the PDUs or the state
machines and functional characteristics.
The HART client application is integrated within a PROFIBUS master and the
HART master within a PROFIBUS slave, the latter serving as a multiplexer and
handling the communication with the HART devices.
Figure 22: Operation of HART Devices via PROFIBUS