Half duplex connection with a full duplex cevice

Question

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:

Modbus RTU is half duplex, so there may be some reason why they made a full duplex transceiver. — Marko Buršič, Sep 22 '21 at 09:04
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. — Community, Sep 22 '21 at 09:09

score 1 · Accepted Answer · answered Sep 22 '21 at 09:08

1

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.

answered Sep 22 '21 at 09:08

Marko Buršič

23,562
2
20
33

Half duplex connection with a full duplex cevice

1 Answers1