Connecting M-bus meter via rs485 to ethernet converter

Energy
1

Hi
New guy here.
I have tried to connect my energy meter via rs485 to ethernet to my HA-server.
But i am at a total loss with the configuration in HA.

my hardware:
EM340DINAV23XM1PFA04 energy meter with M-bus

RS485 to Ethernet Converter signal converter.
Ha server is on an old laptop on proxmox.

I can find and configurate the signal converter on my network.

I have tried with the modbus intagration but it does not get any values from the meter.
Some people seem to use node red with modbus nodes but i have no idea how that works.

Maby I have the wrong hardware?
Does anybody know where I should start learning about this?
All this modbus coding was alot harder to understand than I thought.
Thank you!!

Edit 1:
I have learned that M-bus and modbus is not the same. Is it still possible with my equipment to connect?

2

M-bus is not modbus

1 Like
3

Yes that is right. Forgot to write about that.
Do you know if its still possoble to connect to HA with my M-bus meter?

4

Mbus normally deploy authentication and encryption, so you often need to get a key from your provider.
If you are in EU, then I think there is a law that require them to provide it to you.

1 Like
5

Thank you. I will try to learn more bout this. Maby it would be bette if I had a Modbus meter insted of M-bus.
I found this now:

will it work for me do you think?

6

It might but you will probably still need the information from your provider to set it up.

1 Like
7

Hi again. Do any of you guys know what type of code I should look in to. Is it still Rs485? Or some software to read out values. I would be super grateful. But Maby I should get some more suted hardware for this thing. I just like it to be a real 3phase meter without wifi or some cloud service.