Hameg HM304 Manual
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Contents
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Subject to change without notice28the PC to the oscilloscope, otherwise it results in a bufferoverflow. The setting of the oscilloscope is made via the In-strument Data Field (Device Data Field = DDF) as a binaryarray. Each byte of the data field can also be called-up by asingle command. The following chart shows the structureand the appertaining single commands:Instrument Data Field with Single CommandsKommand: D7 D6 D5 D4 D3 D2 D1 D0CH1 GND AC INV1 ON VALUE Counter 0-13CH2 GND AC INV2 ON VALUE Counter 0-13mv/DIV = 000020V/DIV = 1101MODE CT XY A-TR CHOP ADD 0 TR-SOURCE00=Y101=Y21x=EXTTB1 x10 0 0 TB-A TIME Counter 1-2650ns/DIV = 00 bis0,5s/DIV = 15hexTB2 0 DEL-MODE TB-B TIME Counter 1-26off = 00SEA = 01DEL = 10 50ns/DIV = 00 bisDTR = 11 50ms/DIV = 12hexTRIG ± 0 P-P NORM 0 COUPLING 0-6AC=00, DC=01HF=02, LF=03LINE=04TV-F =05TV-L =06TRLEV 8-BITVARTB1 8-BITVARY2 8-BITVARY1 8-BITXPOS B-BITPOSY2 8-BITPOSY1 8-BITThe data field is internally checked for logical errors whichare protocolled in the RETURN CODE.The following RETURN CODES are implemented:0 = no error 1 = syntax error 2 = data error3 = buffer overflow 4 = bad data set |
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