Modbus to ControlNet

M

Thread Starter

Mike

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.

Thanks

Mike
 
S

Steve Myres, PE

SST X-Link box, maybe? I know they have products for both ControlNet and Modbus, so I think they should be able to do this.
 
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Randy Kondor

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 :)

Let me know if you have any questions...

Randy Kondor
OPC Product Manager
Matrikon, Inc.
[email protected]
 
> > 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.

Randy Kondor:
> 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 [1].

http://mat.sf.net

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.


Jiri

[1] It'll need 386 or higher, though you'll have to know what you're doing if it has less than 8M RAM.
--
Jiri Baum <[email protected]> http://www.csse.monash.edu.au/~jirib
MAT LinuxPLC project --- http://mat.sf.net --- Machine Automation Tools
 
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