HP 6002A Programming Manual

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HP 6002APower SupplyHP 1000Computer HEWLETT' PACKARDProgramming GuideDevice IntroductionThe HP 6002A DC Power Supply1 employs a unique ex-tended range technique which allows it to furnish maximumoutput power over a wide range of voltage and current com-binations. The supply can provide a full 200 watts of outputfrom 20V, 10A to 50V, 4A. The output is fully adjustablethrough the entire operating range of +0 to +50 volts and 0to 10 amps by front-panel voltage and current controls.Option 001, the HP-IB interface allows the supply to bedigitally controlled from a calculator, computer, or other con-troller. Either the output voltage or current can beprogrammed.A pair of switches on the rear panel of the supply allowsselection of anyone of three modes of operation: local, HP-IBconstant voltage (CV), or HP-IB constant current (CC). The6002A acts only as a listener on the bus.AddressingBefore the 6002A can accept programming information, itmust be addressed to listen. The 6002A has listener capabil-ity only. The switches which allow the 6002A to be addressedas a listener are located on the rear panel. They are in theupper right hand-corner of the box, just to the right of theHP-IB connector.There are seven switches, but only the left five are used.Note that the 6002A address cannot be read directly off of therear panel in binary. The least significant bit is farthest to theleft as shown in figure 9-1. The octal address shown is 5.Constant voltage (CV) or constant current (CC) operationmust also be set (also shown in figure 9-1). The HP-IB option001 circuits are factory adjusted for CV operation2 . See the"Programming" section for more details.1 The 6002A Operating and Service Manual (06002-90001), theHP-IB Power Supply Interface Guide (5952-3990), and ApplicationNote 401-1 (5953-2800) should be used with this note.2Constant current (GG) adjustments are also discussed in AppendixA of the 6002A Operating and Service Manual (06002-90001).Application Note 401-9System PreparationsLU AssignmentOne logical unit should be assigned to the 6002A. Assumingthe switches are set to an address of 5 as shown in figure 9-1,the LU assignment may be performed from File Manager,:SYLU,17,10,S8This statement would assign LU 17 to equipment table 10.The device address associated with LU 17 would be 5.ADDRESS SWITCH1 -7~IGNOREDDDFigure 9-1. 6002A Listen Address and Mode Switches