RCV420: 4-20mA signal 2-wire and 4-wire configuration signal input

MOHAMMAD WASIM

Part Number: RCV420

Dear All,

Can I get some reference schematics for configuring the 4-20mA signal 2-wire and 4-wire configuration signal input using RCV420. output 0-5Vdc

over 4 years ago

0 Iwata Etsuji over 4 years ago

TI__Expert 6400 points

Hi Mohammad,

Does the typical schematic of the figure 1 in the RCV420 data sheet work well?
You can also see the other examples in some application notes in as below.

https://www.ti.com/product/RCV420#tech-docs

https://www.ti.com/lit/an/sboa023/sboa023.pdf

Thank you and Best regards,
Iwata Etsuji

0 MOHAMMAD WASIM over 4 years ago in reply to Iwata Etsuji

Prodigy 220 points

Dear Iwata,

Thanks for the replay,

I am unable to understand how to do 4-20mA input can be configured for 4wire and 2 wire selection type configuration in a single schematic with jumper selection type for 2 wire and 4wire.

Regards

Wasim

0 Iwata Etsuji over 4 years ago in reply to MOHAMMAD WASIM

TI__Expert 6400 points

Hi Wasim,

In my understanding, there is not necessary for RCV420 to identify the 4-20mA wiring is 2-wired or 4-wired.
So I have to know more about your expected system with RCV420.
Is it possible for you to share the system block diagram?
Would you like to configure the loop voltage for each case?

Thank you and Best regards,
Iwata Etsuji

0 Tamara M Alani over 4 years ago in reply to MOHAMMAD WASIM

TI__Genius 10850 points

Hi Mohammad,

We haven't heard from you in a while. We hope the issue was resolved. Closing this thread now. Reply to re-open if you have any additional questions.

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RCV420: 4-20mA signal 2-wire and 4-wire configuration signal input