With The Sensor's Standard Parallel Connection - Omron FQ2-S Series User Manual

2-1 Controlling Operation and Outputting Data with the Sensor's Standard Parallel Connection
This section explains how to directly connect the Sensor to external devices with the I/O cable, and control the
Sensor and execute output.
Basic Operation with a Parallel Connection
This section describes the basic connections and signal flow with external devices.
With the default settings, the Sensor operates in the following manner.
Trigger Sensor
(1) Measurement
trigger input
(1) Measurement
ON
trigger input
OFF
(TRIG signal)
(2) Executing
ON
measurement
OFF
processing
(BUSY signal)
(3) Judgement results
output (overall
judgement: OR
signal)
*1: You can also use the READY signal, which will turn ON when a measurement trigger can be input.
You can assign the READY signal to any output from OUT0 to OUT2.
( Getting Individual Judgements and Expression Judgements: p. 41)
Measurement
ON
trigger input
OFF
(TRIG signal)
ON
BUSY signal
OFF
ON
READY signal
OFF
Important
• Create the ladder program to control the TRIG and IN5 input signals so that they do not turn ON while the BUSY
signal is ON. If not, a TRIG input error will occur and the ERROR signal will turn ON.
• Operation When the Sensor Power Supply Is Turned ON
The BUSY signal will operate as shown below when the Sensor's power supply is turned ON.
Create the ladder program in the PLC or other external device so that the BUSY signal is ignored while it turns OFF,
ON, and OFF again for up to 5 s after the power supply is turned ON.
34
Controlling Operation and Outputting Data with the Sensor's Standard Parallel Connection
FQ2 Vision Sensor
(3) Judgement
results output
(2) Measurements
performed
The trigger to perform measurements once is turned ON.
You can confirm if measurements are in progress.
ON while measure-
ments are in progress
ON while measurements are in progress
OFF while measurements are in progress
External device
This signal stays ON until the next
measurement trigger can be input.
Turned ON when overall judgement is NG.
Retained until the next
judgement results are
output.
When the measurement
trigger is received, the BUSY
signal turns ON and the
READY signal turns OFF.
FQ2-S/CH User's Manual
for Communications Settings
*1