M-bus through 753-649 in Codesys 2.3

CODESYS
1

Hi,

It’s my first time doing any kind of M-bus communication, but I’ve found the MBUS_649_01 library and have tried setting it up, with no luck. I’ve done a lot of serial/tcp connection so I’m used to communication in general.

I’m trying to read the energy from a CALEC® ST III Smart (connected to two PT100 sensors and a flowmeter) over M-bus, using the Wago 753-649 module. Not sure about the setup/addressing either.

Any assistance is greatly appreciated. Or a sample project to help me get started.

Thanks in advance.

2

Did you try and read the Application note ?

I attached the complete Application note with 2 examples in it here.

I hope it helps you.

Best Regards Jan

ApplicationNote-MBus-649-01.zip (2.1 MB)

3

Thank you. I managed to get it working. wasn’t as bad as it looked at first glance. :slight_smile: