On Wednesday, September 25, 2013 2:00:52 PM UTC-4, Gerald wrote: > > The BB cannot be modified. But, there is another board that supports it. > > http://www.ti.com/tool/tmdxice3359 > > It requires special SW in the PRU to support it. > > Gerald > > > I'm not at all familiar with Modbus, so I expect I am wrong, but would not his use case be supported? He's not doing direct Modbus communication, but rather encapsulating it inside TCP/IP and then sending it over the network. The gateway device is responsible for converting the TCPIP packets into correct modbus format for the actual modbus network[and vice versa going back]
Wouldn't the PRU/ethernet configuration be used if using the Ethernet wiring to run an Ethercat network ? For testing, instead of node.js I'd go with libmodbus as it is an extremely mature implementation: http://libmodbus.org/ Install libmodbus and compile the test apps https://github.com/stephane/libmodbus/tree/master/tests and run them. Then modify the bandwidth-client and random-client to swap the localhost address[127.0.0.1, port 1502] with the gateway adddress[192.168.7.3, port 502] and rerun them to see if you get a connection. After that, your dependent on what you actually want to do - you will need to copy one of the client apps and modify it to send the commands your interested in. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
