QUOTE (aarotech @ Aug 17 2009, 08:30 AM)

Programing with the RSlogix 5000 but need any device to interface with J1939 so I can control and recieve info from CAT engines.
Any help or recomendations would be appreciated .
You may want to contact a company called Monico, in Texas.
http://www.monicoinc.com. Person to talk to is Doyle Taylor. Monico is in the business of devices that interface control systems to CAT engines, and I know we had discussed J1939 back in 2007. They may have implemented that into the Opto SNAP-PAC-S1. If so, you're in luck on the A-B side, as that can share data over EtherNet/IP with ControlLogix.