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I/O Timing Charts
121
ZG User’s Manual
4
CONN
ECTION
WITH EXTERNAL DEVICE
I/O Timing Charts
This section explains the I/O signals that are exchanged between the Controller and
external devices, and the timing charts for data output.
External output at trigger measurement (MULTI sensitivity/FIXED sensitivity)
When the auto output for serial output is ON, input the next trigger after all measurement data
is received. At this time, the ENABLE signal turns ON after all measurement data has finished
being sent.
T1:
Measuremen
t cycle The measurement cycle can be checked by the ECO monitor in the RUN
mode.
p.54
T2:
Trigger input
response
time This is the time from input of the measurement trigger up to when input is
recognized as the trigger. 500 µs or less
T3:
Output
response
time When the trigger is detected after it is input, data output changes status from
ON to OFF, and this status is held for the following preset time.
At FIXED sensitivity:T3=T1 x (average number of times + 2) (maximum value)
At MULTI sensitivity:T3=T1 x average number of times
T4:
GATE output
delay time This is the time from start of output up to when the GATE signal turns ON. This
time can be changed. This is the time to wait until stable output data can be
obtained.
T5:
GATE ON
time This is the time that the GATE signal is ON. This time can be changed. This is
the time that is required to capture data output (measurement values/judgment
results) on external devices.
Measurement
trigger
Laser beam
emission
ENABLE
signal
GATE signal
Data output
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
(4)
(2)
(1)
T2
T3
T4 T5
(3)
T1
In case of MULTI sensitivity,
each laser emission is
multiple emitted light.
Important