A HART device offers the same intelligent device management (IDM) that you can find in Foundation fieldbus or other digital networks. The quick answer to the Foundation fieldbus vs HART question is that HART provides better configuration, diagnostics, calibration, and other features. But with HART, your system will need the 4-20 mA to control your current loops. This is the main disadvantage of HART compared to Foundation fieldbus. If you want the long version, read on.

foundation filedbus connection
Foundation Fieldbus Connection – Copyright Relcom Inc.

The Foundation fieldbus offers digital communication from the primary device to the final control element. You also get IDM on all devices instead of just the HART device. Basically, you need to compare digital communication to 4-20mA rather than to HART.

We have RIA 15 that uses HART in our shop. To know more about this, you can read here. 

RIA15 For the indication of the 4 to 20 mA signal or the HART values in the field or in the panel
in the shop from 159 €

For more on these networks, check the links below:

Other resources on Foundation fieldbus vs HART

HART – The best PAM application
We have HART field devices, but we only get the analog signal from the field! How should we upgrade the system to read the diagnostics? With PLC cards or a multiplexer or maybe a wireless adapter?

HART communication: Viator Bluetooth interface
I have an AMS suite device manager, and I would like to know if can I use the Viator Bluetooth with my software? Do you know about that?

HART theory
Could you explain how it’s possible to send a digital communication through an analog signal?

HART Communicator: When to Use
I have a question about HART communicators. Can you help? When we have a local configuration, when do we use the HART communicator?

To know about more products with HART, you can Ask Alex!

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