User Manual

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8.2 Output Signal
ERR: Error signal output is divided into synchronous measurement error signal output and
asynchronous measurement error signal output. The measurement error signal is outputted
together with EOC as synchronous error signal output, not asynchronous error signal output.
INDEX: Transitions from low to high to indicate that the instrument measurement is finished.
The instrument begins calculating the DUT’s resistance after the measurement is finished.
EOC: End of conversion signal. Transitions from high to low when measurement calculations
begin. Transitions from low to high when measurement calculations end.
Hi, IN, Lo: Comparator results.
BIN0 to BIN9, OB (out of bins): If the DUT value conforms to the bin parameters, the
corresponding bin no. output will be low. If no bins are satisfied, the OB signal will transition
from high to low.
OUT0 to OUT7: Output signal controlled by :IO:OUT command. OUT0 is low-order and OUT7 is
high-order. For example, if IO: OUT 52 the output is
Value
52(decimal)
OUTX
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
OUT0
Bit
0
0
1
1
0
1
0
0
BCD1-0 to BCD6-3: Binary coded decimal for the DUT’s 6 digit measurement value. BCDx-0 is
low-order and BCDx-3 is high-order. BCD1-x is low-order and BCD6-x is high-order. For example,
if the measurement resistance is 498.992 the output is
Value
4
9
8
9
9
2
BCDx-x
BCD6-
BCD5-
BCD4-
BCD3-
BCD2-
BCD1-
3
2
3
2
3
2
1
0
3
2
1
0
3
2
1
0
3
2
1
0
3
2
1
0
Bit
0
1
0
0
1
0
0
1
1
0
0
0
1
0
0
1
1
0
0
1
0
0
1
0
8.3 Power and Ground
COM: External power supply EXTV reference ground
EXTV: External power supply (5 to 24 VDC)
INT.GND: Internal and INT.VCC ground
INT.VCC: Internal power supply outputs 5 VDC
Note: When using internal power supply, COM and INT.GND can be shorted and EXTV and INT.VCC can be
shorted. Do not short when an external power supply is used.