Fieldbus Communication FieldConnex Temperature Multi-Input For Efficient Integration in Profibus PA

| Editor: Dr. Jörg Kempf

In addition to the proven connection to Foundation fieldbus H1, the FieldConnex temperature multi-input from Pepperl+Fuchs is now available for use with Profibus PA.

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Temperature multiplexer for Profibus PA with eight inputs for analog signals
Temperature multiplexer for Profibus PA with eight inputs for analog signals
(Picture: Pepperl+Fuchs)

The FieldConnex temperature multi-input from Pepperl+Fuchs enables analog input and output signals to be connected with the fieldbus with the highest level of efficiency — in a manner that is intrinsically safe, convenient, and incurs minimal wiring costs.

FieldConnex process interfaces can bundle signals from multiple sensors together in a single fieldbus address, and integrate them into the digital communication in a particularly efficient manner. In this way, the FieldConnex Temperature Multi-Input (TM-I) enables up to eight analog signals to be integrated into fieldbus communication — and as a completely new feature, this functionality is now also available for Profibus PA. The device is mounted in the immediate vicinity of the sensors in hazardous areas. This saves significantly on wiring costs.

In addition to thermocouples and millivolt signals, 2-, 3-, and 4-wire resistance temperature sensors (RTDs) can be connected using the temperature multi-input. All inputs on the TM-I are intrinsically safe, even if the fieldbus connection itself is not. The inputs are quick and easy to configure collectively, and configuration on an individual basis is also possible. Configuration and integration into the control system is extremely convenient: For Profibus PA a GSD file and a DTM is available for download from the datasheet at

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