VCP User Guide PDF

Cummins Vendor Component Program (VCP) for Win32 Systems2 VEPS Wiring ConnectionsOEM programming of a Cummins engine over J1587 or J1939 datalinks can beaccomplished either prior to or after the engine is installed the vehicle chassis.Programming the engine after it is installed in the chassis is recommended; however, ifthis is not possible and the engine must be programmed prior to installation in thechassis, additional precautions need to be taken to limit the potential damage to theEngine Control Module (ECM).• When connecting VEPS to the vehicle or ECM datalink, the datalink adaptorpower supply must have a common ground connection with the Battery (-)connection of the ECM. The datalink adaptor should be powered from the samepower supply as the ECM. If this is not possible and the datalink adaptor has aseparate power supply, the supply must have a common ground connection withthe Battery (-) connection of the ECM.• The ECM power connection must be made prior to energizing the ECM (Do not"Hot Plug" the ECM).• The ECM Battery (-) must be connected to the engine block prior to energizingthe key switch line.• The key switch line must be de-energized prior to de-energizing the ECM.• ECM must be de-energized prior to disconnecting the power and groundconnections.3 Parameter FileThe parameter file is the primary interface to the Cummins VCP. It is a text filecontaining a list of parameters and values to be programmed in the ECM. The CumminsVCP supports three SAEJ2286 record formats.• Setup Records• Parameter Records, and• Remarks RecordsSetup RecordsTwo setup records are required for VEPS to program an engine ECM.• Communications Port, and• Engine Module TypeThe communications port setup record is used to identify the port to which the datalinkadapter is connected. Here is an example that specifies COMM 1 as the port:S,COMX,1- 6 - 12/15/06