Mdbus tcp\rtu gateway

General
1

I have 2 modbus rtu devices connecting to node red through one modbus tcp\rtu gateway, i try to control both of them at the same time but i can not. can someone help me

2

Probably, but only if you give us a lot more information. Show us how you are trying to do it.

1 Like
3

I used modbus read node and write node for both of them.
But I may have to use flex getter nodes.
And about the server, which one must be the server the gateway or the modbus devices themselves?

4

Thanks alot

5

You said you had it working, so you must be doing it right already.

1 Like
6

If I connect only one plc to node red, I can connect, read and write
But more than one device I can not

7

I mean if I connect 2 or more rtu modbus devices to node red through the modbus tcp/rtu gateway I can not control all of them at the same time

8

You have not told us how you are trying to do it, in detail so that we can work out what the problem may be.

Edit: Corrected sentence above

9

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