Omron FQ2-S4 User Manual page 327

Output Signals
Signal Function
RUN This signal is ON while the Sensor is in Run Mode. It will be OFF in Setup Mode.
BUSY This signal does not change while clearing the OR and D signals.
However, do not clear the OR and D signals while the BUSY signal is ON.
The command will not be executed correctly.
OR If this signal was ON, it will be turned OFF.
D0 to D15 If these signals were ON, they will be turned OFF.
GATE This signal does not change while clearing the OR and D signals.
However, do not clear the OR and D signals while the GATE signal is ON.
The command will not be executed correctly. Also, the D and GATE outputs may not function correctly.
ACK When the command has been completed normally, this signal is turned ON for the time that is set for the ACK
output time.
Input Signals
Signal Function
IN0 Turn OFF.
IN1 Turn ON.
IN2 to IN5 Turn OFF.
IN6 Turn ON.
IN7 This signal is the trigger for clearing the OR and D signals.
Set the IN0 to IN6 signals, wait for at least 5 ms, and then turn ON the IN7 signal.
FQ2-S4 User's Manual Controlling Operation and Outputting Data with a Parallel Interface Sensor Data Unit
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