CANbus Network on AB

Has anyone communicated with a CANbus device with a SLC PLC?

Thanks
John

only devicenet is possible


see difference between CAN & DeviceNet

http://www.canopen.us/faq/0123.htm

Thanks for the answer.

John

Some PLC companies do have CAN Open scanners though. Am looking at one at the moment for scanning diesel generator sets that use the 1394 standard - Caterpillar, MTU, Deutze etc. Cummins have to be different - they use LON.

Just an FYI, Horner Products www.heapg.com has been a 3rd party vendor for GE Fanuc for years. They also make PLC's that use CAN as a default communication protocol. The neat part is they have one piece of softare, CSCape, that prgrams their plc's, operator interfaces, and develops the communications. http://www.heapg.com/Pages/TechSupport/CscapeSoftware.html
The software is free.

I can not say for sure but it may be possible to establish communication with your CAN devices and use this as a bridge to Modbus, Profibus, Ethernet, or DNET.

Have worked with them, but not sure about 1394 part though. The programming is similar to GE Fanuc.

CAN is just the signalling layer, just like RS232 is the signalling layer or Ethernet is the signalling layer, but they can run hundreds of different protocols.

I just don't want people to get confused: Horner's CsCAN protocol and DeviceNet and SDS and CANOpen and J1939 all run on top of CAN signalling, but are different protocols.

Bob, are you sure you mean 1394 ? I'm familiar with that number referring to a high-speed PC peripheral network, also known as Firewire. Diesel gensets that I have worked with use a heavy-equipment standard called SAE J1939.

You are right Ken. Old timers I think. From what the local Omron guru tells me their CAN Open card can communicate with these devices with some programming. I have been using Modbus RTU on Dats as they already have the interface built in to the latest sets. Will have a go when I get another without the Modbus.

I have seen a Toshiba guy get into the sets via CAN though so it shouild not be too difficult?