Expert’s answer: Benefits of multidrop communication

Thinking of using multidrop communication for your wirelessHART adapter? You’re in the right place.

With a 4-20mA setup, the HART protocol connects with a handheld or laptop to configure, diagnose, or calibrate devices. Although the HART doesn’t need communication with the control system, you can have a digital connection through a HART input/output (IO).

multidrop communication
HART Communication – Copyright HART Foundation

Now, a multidrop installation connects devices to a control system, allowing field communication with an IO. In fact, a multidrop can connect up to 15 devices on the same pair of cables. You also don’t have to deal with 4-20mA variation anymore, only the HART communication.

Want more information? If so, you can find more information in the links below:

Other resources that might interest you:

WirelessHART with Yokogawa AXR

We have the Endress+Hauser wireless adapter SWA70, and we intend to use a Yokogawa magmeter. So which kind of PV, SV, TV, and QV information should we get from the HART?

HART theory

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

WirelessHART configuration basics

We’re implementing a new wirelessHART network in my plant, and it’s my first time using this kind of technology. Could you go through the basic configuration with me?

Both FF and HART can provide field data to the marshalling cabinet. Which is more reliable for the oil and gas industry?

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