[M-bus communication vs vision570]

Hi

 

I want to communicate with my plc ( vision570) and a watts camical meter.
Now is my question how can i emplementate the protocol in visilogic.

I want to sell a converter from m-bus to rs232 and plug the rs232 in port 2 of the plc.

here a link with the protocol :

 

http://www.m-bus.com/mbusdoc/md8.php

Anyone an idea of this can work and how?
And what is the max length from the m bus to the RS232 converter?

Kind regards

Jan