174
Example Measurement Timing (Timing Charts)
Acquisition of measured values (BCD) using an external trigger
With BCD output, it is necessary to acquire the No. 1 parameter and the No. 3 parameter as well as the
high-order digit and the low-order digit separately. The No. 1 parameter and the No. 3 parameter and the
high-order digit and the low-order digit can be acquired in any order. In the following example, the high-
order digit of the No. 1 parameter is acquired rst. A wait of at least 0.2 ms is required after controlling the
C1 and C2 signals.
Instrument
External device
Measurement
start
Measurement
start
C1=OFF,C2=OFF
TRIG
Measurement
complete
Measurement in
progress
Measurement
complete
received
EOM
D1-0toD4-0
EOM wait
No. 1 parameter
BCD low-order digit
Setup start
C1=ON,C2=OFF
Setup time
0.2ms max
Wait
D1-0toD4-0
No. 3 parameter
BCD high-order digit
Specification
C1=OFF,C2=ON
Setup time
0.2ms max
No. 3 parameter
BCD high-order digit
Acquisition
D1-0 toD4-0
Wait
C1=ON,C2=ON
Setup time
0.2ms max
D1-0 toD4-0
Wait
No. 1 parameter
Specification
No. 1 parameter
BCD low-order digit
Setup complete
No. 1 parameter
BCD high-order digit
Acquisition
BCD low-order digit
BCD low-order digit
Acquisition
No. 3 parameter
BCD high-order digit
Setup start
No. 3 parameter
BCD high-order digit
Setup complete
No. 3 parameter
Specification
BCD low-order digit
No. 3 parameter
BCD low-order digit
Acquisition
No. 3 parameter
BCD low-order digit
Setup start
No. 3 parameter
BCD low-order digit
Setup complete