Omron FQ2-S Series User Manual

Control Methods Using an External Device
30
FQ2-S/CH User’s Manual
for Communications Settings
Data Output Control with Handshaking
The timing for data output can be controlled through the DSA and GATE signals.
The handshake function can only be used with EtherNet/IP, PLC Link, PROFINET, and parallel communication
(when a Sensor Data Unit is used).
Requirements for Using Data Output Control with Handshaking
To use data output control, set the output control method to [Handshaking] in the communications protocol
settings. For details, refer to Communications Specifications Settings for each communications protocol.
• Parallel Communications: Refer to Setting Data Communications Specifications: p.66.
• PLC Link Communications: Refer to Setting Up PLC Link Communications: p.122.
• EtherNet/IP and PROFINET Communications: Refer to Communications Specifications Settings (p.92 or
p.145).
Handshaking
If the external device does not turn ON the DSA signal, the measurement data will not be output to the external
device from the Sensor.
While the DSA signal is ON, the GATE signal turns ON when the measurement data is output from the Sensor.
The external device receives the measurement data when the GATE signal turns ON.
Signals Used for Handshaking
*1: If handshaking is not enabled for output control, the GATE signal will also be turned ON when data is output from the Sensor.
(1) The PLC turns ON the DSA signal and waits for the output data.
(2) The Sensor turns ON the GATE signal when the DSA signal is ON and it is ready to output the
measurement results.
(3) The Sensor turns ON the GATE signal and outputs the output data.
Signal Name Description
DSA Data Output Request Sig-
nal
This signal is sent from the external device (PLC) to the Sensor to
request data output.
GATE Data Output Completion
Signal
This signal is sent by the Sensor to the external device (PLC) to tell the
PLC when to receive the output data. This signal is sent only while the
DSA signal is ON.
*1
External device
(1) DSA signal
(3) Measurement results output
(2) GATE signal
Sensor
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Omron FQ2-S Series Specifications

General

Brand	Omron
Model	FQ2-S Series
Category	Security Camera
Language	English