Mike, to do this, you can use the following off-the-shelf software:
- OPC Server for Modbus
- OPC Server for ControlNet (RSLinx will do)
- OPC Data Manager (http://www.matrikon.com/odm)
The OPC Server for Modbus will expose all the Modbus data. The OPC Server for ControlNet will expose all the ControlNet data. Lastly, the OPC Data Manager will transfer data out of one OPC Server and ferry it over to the second OPC server... and vice versa. All this can be done using a single PC, and less than an hour of work
> > Is it possible to find an off the shelf converter that converts
> > Modbus to ControlNet? If not can one be made from a kit that might
> > be available.
> Mike, to do this, you can use the following off-the-shelf software:
> - OPC Server for Modbus
> - OPC Server for ControlNet (RSLinx will do)
> - OPC Data Manager (http://www.matrikon.com/odm)
Well, it seems a bit of an overkill to put a full-fledged PC there, but if you're going that way, the MatPLC can do the same thing, and it'll have lower hardware requirements .
You'd use one of the modbus master modules to read and write the modbus, and the cif module to read and write the ControlNet, and configure it so that points that are read by modbus_m are written by cif and vice versa. We call this the "traffic cop" mode.
You don't need any logic modules, but you can add them if you later find out you need more sophisticated conversions, or a bit of logic, or sth.