Omron FQ2-S/CH Series User Manual page 32

Timing Chart
The following timing chart shows the data output timing for parallel judgement outputs.
Run Mode entered.
ON
RUN signal
OFF
ON
TRIG signal
OFF
ON ON
BUSY signal
OFF OFF
OR signal
D signals
ON
GATE signal
OFF
Output Signals
Signal
RUN This signal is ON while the Sensor is ready to take measurement and it is in Run Mode.
The RUN signal is OFF in Setup Mode. Change to Run Mode for operation.
This signal is ON when the Sensor is performing measurements, changing scenes, or performing other
BUSY tasks. Do not input the next command while the BUSY signal is ON.
The process that is currently being executed and the command that is input will not be executed correctly.
OR This signal outputs the overall judgement. The signal is valid when the measurements are completed (i.e.,
when the BUSY signal changes from ON to OFF).
These signals output the parallel judgement output data and the calculation results of the expressions that
are set for parallel data output.
D You can set whether the signal turns ON for an OK or for an NG judgement in the [Judgment output condi-
tion] output setting.
Changing the Judgement Output ON Conditions: p.44
This signal is used to control the timing of reading the D signals at an external device.
It is turned ON for the period of time that is required to reliably read the D signals at the external device.
Set the output period so that the total output time is shorter than the measurement interval (i.e., the TRIG
GATE signal input interval).
The GATE signal is output only if parallel judgement output and parallel data output are set. The OR signal
will be ON while the TRIG signal can be input.
Input Signals
Signal
This signal is used to input a measurement trigger from an external device, such as a photoelectric switch.
TRIG One measurement is performed on the rising edge (OFF to ON transition) of the TRIG signal. Keep the
TRIG signal ON for at least 1 ms.
30
Control Methods Using an External Device
ON for 1 ms min.
The FQ2 starts measurements when it detects the rising edge
(OFF to ON transition) of the TRIG signal.
Measurements executed.
GATE
ON delay Output time
Function
Function
Setup Mode entered.
Overall judgement
Parallel
judgement output
(D0 to D15)
Output period
for Communications Settings
FQ2-S/CH User's Manual