Multible Arduino´s over RS485 (Labview - Master - Slave) Modbus

[mayerha]

I try to connect a couple of Arduino via RS485. I have read many posts, but the discussion often ended without success. The slaves should send the measurements to the master and then evaluate over Labview. Is it possible to program the master so that it appeals to the slaves and collects the information, or is it easier to solve it with Labview (The Management). I also read a lot about the Modbus, would this be possible ?
It would be great if someone could help me or give me an advice.

[mayerha]

This way? https://decibel.ni.com/content/message/43190#43190

I would be very glad for each tipps impression and effects.

[mayerha]

Could anybody give me a hint, how i can get the informations sorted by labview.

I need only the way e.g. for one measurement or reading. (Arduino-RS485-ID4-Slave <=>Arduino-RS485-ID3-Slave <=>Arduino-RS485-ID2-Slave <=>Arduino-USB-ID1-Master<=>Labview)

I would be happy for each helpful hint.

[Kristoff2]

Hey Mayerha,

Can you give us some more details on what you are trying to do?  What are all the devices in the system and what is each one doing?  What sort of data needs to be transfered and from where to where?  The more information you provide the easier it will be for us to give suggestions.  Based on what you've said so far I'm not sure what the best approach is and there is no easy solution for LIFA + Modbus.

Thanks!

-Sam K

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