Installation and Configuration Section TwoGPIB-PC User Manual 2-10 ©National Instruments Corp.IBCONF makes changes to the GPIB.COM file, which should also be inthe root directory. If you want IBCONF to make changes to a differentcopy of GPIB.COM such as GPIB2.COM, enter the path and name ofthe GPIB.COM file you want modified:ibconf c:\GPIB-PC\GPIB2.COMThis will have the effect of changing the parameters within theGPIB2.COM file in the GPIB-PC subdirectory.Modify only the copy of GPIB.COM created by IBSTART in your bootdirectory. Never modify the master copy on the distribution diskette.This would happen if you ran IBCONF from the distribution diskette andif the distribution diskette were not write-protected.Upper and Lower Levels of IBCONFIBCONF operates at both an upper and a lower level. The upper levelconsists of the Device Maps and gives an overview of the GPIB systemas defined within the handler being configured. The lower level consistsof screens that describe each individual board and device in the system.Upper Level - Device Map for Board GPIBxThis screen displays the names of all devices defined in the handler file,and indicates which devices, if any, are accessed through the interfaceboard GPIBx. At this level, you may:• Rename a device;• Disconnect a device from its assigned GPIB-PC access board orconnect (reassign) it to a different access board; or• Proceed to the lower level to edit or examine thecharacteristics of a particular board or device.Instructions are given on the screen for selecting the individual devicesand for changing from one device map to another, for example, from themap for GPIB0 to that for GPIB1.
