40
Run-Mode Measurement Process
Parallel Interface Timing Chart
Ex.) TRIG Measurement, Handshaking: OFF
Explanation of operation
1.
When the measurement trigger (TRIG signal) is input from the external device, measurement is executed
once synchronized with the rising edge of the TRIG signal (OFF -> ON).
2.
The GATE signal is used to control the timing at which the external device captures measurement results.
Set the Gate ON delay (T3) and Gate ON time (T4) so that T3+T4<T5.
3.
When parallel output is set to "ON" as the data output destination, data is output for the number of times in
the expression set at "Calculation (data)" (maximum 32 times). When parallel output is OFF, data is not out-
put.
4.
When parallel output is set to "ON" as the judgment output destination, judgment is output for the number
of times in the expression set at "Calculation (judgment)" (maximum twice). When parallel output is OFF,
judgment is not output.
5.
The overall judgment is output. Overall judgment is NG if there is even one NG for the preset measurement
items and judgment results in the expression. In the case of level output, the ON/OFF status of the OR signal
does not change until the next output as shown in this example.
6.
When the timing for turning the ENABLE signal ON is set to "end of image input", a delay occurs until output
is started after the ENABLE signal turns ON as measurement is also executed after the ENABLE signal
turns ON. Do not input the next trigger until measurement is completed.
T1:
Trigger input time
Set to ON for at least 0.5 ms.
T2:
Measurement time
This time is "image input" + "measurement". This time can be changed to only "image input" or
"image input" + "measurement" + "display".
T3:
Gate ON delay
This is the time to wait until stable output data can be obtained. This time can be changed.
T4:
Gate ON time
This is the time required for the external device to capture output data from the Controller.
This time can be changed.
T5:
Output cycle
This is the interval in which the DO signal state changes. This time can be changed.
T6:
Total output time
This time is equivalent to "output cycle (T5) x number of output data items". Input the trigger at an
interval longer than this time. When the total output time is longer than T2, non-output data accumu-
lates in the Controller as the next measurement is executed before measurement results are output.
When the Controller becomes filled up with this non-output data, data can no longer accumulate in
the Controller. When this happens, output of non-output data continues, and the next measurement
is no longer possible until queued data has finished accumulating.
ENABLE
TRIG
RUN
OR
DO
GATE
(1)
T2
T2
T3
(3)
T4
T5
T6
Overall judgment
Data 0
Data 1
Data 31
Data 0
Judgment
0 to 15
Judgment
16 to 31
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
(4)
(5)
T1
T1
(2)
(6)
Z01E-EN-01+ZFX+SettingGuide.book Seite 40 Mittwoch, 13. Februar 2008 2:38 14