Binary Data Formats - Keithley 194 Instruction Manual

IEEE-488 PROGRAMMING
A. 06
1
2 3 4
BYTE 1 BYTE 2 BYTE 3 BYTE n TERMNATOR
& EOI
STATUS WORD 4 BYTES
B-BIT MODE: EACH BYTE IS A SEPARATE SAMPLE.
SEE BELOW ,&BIT MODE: BYTE 1 IS MOST SIGNIFICANT BYTE, BYTE 2 LEAS1
SIGNIFICANT BYTE.
B. 07
EOI
MSB LSB 1 2 3 4 MSB LSB MSB LSB MSB LSB MSB LSB ) . . . pi+?
+'-'I +v, -
BYTE STATUS WORD SAMPLE SAMPLE SAMPLE SAMPLE
SAMPLE
COUNT 14 BYTES, 1 2 3 4
N
,I-WK, SEE BELOW ,I BYTE PER SAMPLE IN S-BIT MODE,
RANGE
CHANNEL
FUNCTION
DECIMAL BINARY
DECIMAL BINARY
0 0000 32Ol?3" 0001 1 0 0000 WAVEFORM
1 0001 3.2V 0010 2 1 0001 AVERAGE
2 0010 32" 0011 3 2 0010 TRMS
3 0011 200" 0100 4 3 0011 +PEAK
0101 5 4 0100 -PEAK
0110 6 5 0101 PEAKTO~PEAK
0111 7 6 0110 STANDARD DEVIATION
1000 8 7 0111 INTEGRAL
8 ,000 RECALL
INVALID NUMERIC: ,=READING IS INVALID
BUFFER INVALID: I=MEASUREMENT BUFFER CONTAINS INVALID SAMPLE
OVERFLOW: ,=READING SAMPLE OVERFLOWED
WAVEFORM IN BUFFER: I=MEASUREMENT BUFFER CONTAINS A WAVEFORM
8116 BIT MODE: 1=16-B1T O=B-BIT
ZEROED: ,=ZERO IS ENABLED
Figure 4-7. Binary Data Formats
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