Hi

I need to integrate Waspmote wireless sensors to an industrial control system.

We have purchased two waspmotes and a meshlium gateway. I have got the data from the waspmotes into the meshlium and can access the database within the meshlium from a MySQL client.

What I need to do is get the data from the meshlium into another piece of software that will run on an industrial HMI. Initially I was going to get the software to connect to the database in meshlium to access the records, but unfortunately this is not supported by the software.

The software can access data via OPC (OLE for Process Control). Have you any ideas about creating an OPC Server application on the meshlium unit, or do you have any other recommendations.

Thanks

Richard

We made a similar integration using OPC Python. This link may help:

http://www.opcconnect.com/tooltech.php#python

Regards

Hi. Thanks a lot for your reply.

OPC Python looks great and is certainly something that I'll check out. However it appears to only be an OPC Client. I need an OPC Server as the HMI I am using will be the OPC Client.

Can you give me any details on what your integration project entailed? I'm also thinking that I could use Modbus/TCP. I don't mind the protocol, I just need to be able to get data out of the Meshlium and into the HMI Software.

Thanks again

Richard

if you use modbus, it'll be easy with this library:

http://code.google.com/p/pymodbus/