0
\$\begingroup\$

I have a sensor that I want to use with Modbus RTU and am not sure if I can use half duplex or if I need to use full duplex.

I would also like to get some suggestions how to read from it with my laptop (USB.) Not the technical part but maybe a suitable RS485 to TTL converter.

The sensor I am using is the SITRANS FC430.

This is the connector:

enter image description here

\$\endgroup\$
2
  • \$\begingroup\$ Modbus RTU is half duplex, so there may be some reason why they made a full duplex transceiver. \$\endgroup\$
    – Marko Buršič
    Commented Sep 22, 2021 at 9:04
  • \$\begingroup\$ Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. \$\endgroup\$
    – Community Bot
    Commented Sep 22, 2021 at 9:09

1 Answer 1

Reset to default
1
\$\begingroup\$

It's all 2 wire A/B RS485. In and Out means that you connect them in daisy chain. From the master the cable goes to In, then you connect the next device to Out.

\$\endgroup\$
0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.