4-2 Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual – June 1997 GFK-1322A4OverviewThe LBIM is configured using the I/Open LBIM Configuration program for Microsoft Windows.Using this utility, a configuration file is created. This file is in the external interface file format(.XIF) for L ON WORKS devices. The file contains node and network variable information alongwith the register mapping information needed by the LBIM to configure the interface. The .XIFfile is downloaded to the LBIM by the configuration software over the L ON WORKS network usingLON MARK File Transfer Protocol. The following general procedure is used to configure theLBIM.Step A. Determine what network variable types will be needed to interface with the PLC.Example:Inputs OutputsSNVT_temp 3 SNVT_temp 1SNVT_count 2 display 1SNVT_freq_f 1SNVT_temp_f 1NVO 7,SNVT temp fa45643NVO 1,SNVT countNVI 1, displayNode 1NVO 1, SNVT tempNVO 3, SNVT tempNVO 4,SNVT freq fNVI 2, SNVT tempNVO 5,SNVT countNVO 6,SNVT tempNode 2Node 4Node 3Figure 4-1. Example: Determining What Network Variable Types are Needed
