VISA Read Timeout Error (-1073807339) with Axetris MFC-2252 (RS-485 Full-Duplex)

[pincpanter]

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@chabazite  ha scritto:

I hope that works for you

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Your vi can be improved under some aspects, but basically seems ok to me.

So, either the device address is not 1 or the RS485 connection is defective.

As per my experience, 90% of the communication issues with RS485 are due to a wrong cabling (typically D+ and D- swapped).

[dkfire]

Do you still get a timeout ? 

When using VISA for RS485 connection, I normally have to configure the RS485 part manually. 

Set the wire type of the RS485 with at property node on the VISA wire.

[chabazite]

actually for my case it is 4 wires (full duplex), in which there are no D+ and D-

[pincpanter]

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@chabazite  ha scritto:

actually for my case it is 4 wires (full duplex), in which there are no D+ and D-

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This actually multiplies the probability of an error, generally speaking.

[chabazite]

Yes right, there are R+, - and T+, - . I will try different device address and also some solutions dkfire recommended. Then I will share again if there is still problem