Aligning The Data Output Timing With The External Device - Omron FQ2-S4 User Manual

Output Signals
Signal Function
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.
BUSY This signal is ON when the Sensor is performing measurements, changing scenes, or performing other
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).
D These signals output the parallel judgement output data and the calculation results of the expressions that
are set for parallel data output.
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 Signal Specifications: p. 291
GATE 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
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 Function
TRIG This signal is used to input a measurement trigger from an external device, such as a photoelectric switch.
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.

Aligning the Data Output Timing with the External Device

You can use one of the following data output methods to align the timing of data output with an external device.
• Aligning with the GATE Signal Status (No Handshaking):
• Outputting Measurement Results for Data Send Requests from the External Device (Handshaking):
• Offsetting the Timing of Outputting Measurement Results:
Setting Data Communications Specifications
[In/Out] − [I/O setting] − [I/O setting] − [Output]
1
Press [Output control] and select the output control
method.
• None:
• Handshaking
• Synchronized Output:
2
Set the communications specifications for data out-
put.
308
Controlling Operation and Outputting Data with a Parallel Interface Sensor Data Unit
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FQ2-S4 User's Manual