Omron FQ2-S Series User Manual

Communicating with an External Device
FQ2-S/CH User’s Manual
for Communications Settings
11
1
Overview of Communication Specifications
Control Methods for the Sensor
There are three methods that you can use to control the Sensor from a PLC or other external device. They are
described in this section.
For details on each control method, refer to their corresponding section.
Control Methods
1 Control with Control Signals and Status Signals (Refer to Control with Control Signals and
Status Signals: p.18)
Control and status confirmation for the Sensor is performed with the ON/OFF status of the control and
status signals.
This method is best suited for basic operations such as measurement triggers or to check the operating
status of the Sensor.
Character output (FQ2-S4/CH
series only)
You can output character strings and numbers that are read by inspection items
such as OCR, Barcode, 2D-code, or 2D-code (DPM). Refer to Items That
Can Be Output as Output Data: p.22 for details.
You can also use commands to obtain results after a measurement is performed.
Method Overview Trigger type or area Signals or area used
Control signals and
status signals
Operation is controlled by the
ON/OFF status of the Mea-
surement Trigger Signal
(TRIG) and Command
Request Bit (EXE).
ON/OFF status of the control
signals and status signals
Control signals and status sig-
nals
Control with com-
mands and
responses
Control is performed by send-
ing control commands. The
execution results of the com-
mand can be confirmed in the
response from the Sensor.
The control command code is
stored in the I/O memory of
the PLC and then the Request
Bit is turned ON.
PLC I/O memory (Command
Area and Response Area)
Data output after
measurements
After a measurement is per-
formed, the previously speci-
fied measurement data is
output automatically.
Not required. (Output is per-
formed automatically after
measurement.)
PLC I/O memory (Data Out-
put Area)
Ty p e Description
Trigger sensor
External device
Status signal
Control signal
Sensor
FQ2-S_CH_comm.book 11 ページ ２０１４年６月２６日 木曜日 午前１１時４７分

Omron FQ2-S Series Specifications

General

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