IDEC WB1F Series, User Manual

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2. Installation & wiring Function 4. Support tool 5. Appendix 1. Overview
3-8
Slave mode
Multiple label read sequential output
Barcode reading starts when the reading request is turned on. While the request is on, reading continues and each time barcode read-
ing has completed, those results are output.
The barcode operation stops when the reading request is turned off.
This becomes "edge-triggered" if the reading timeout time is set between 100 ms and 25,500 ms and "level-triggered" if set to infinity.
If the reading request is turned on with the external trigger input and level-triggered, the stop condition is the following.
z
External trigger input off
To control the reading request with control commands, refer to
F
P. 3-10 "Start conditions and stop conditions for
reading requests" .
The following timing chart is an example of operation by the external trigger input and level-triggered.
On
Off
On
Off
On
Execute
reading
[3]
Start
Stop
Execute
reading
[2]
Execute
reading
[1]
On
On
Off
On On
Reading
results
[3]
Reading
results
[2]
Reading
results
[1]
On
On
Off
On On
On
On
Off
On On
On
Execute
reading
[1]
On
Reading
results
[1]
On
On
Reading request
Emitter LED
Barcode reading
Indicator LED
(orange)
Communication
response
OK output,
NG output
PWM output
Indicator LED
(green/red)
Prevention time
of same read
Prevention time
of same read
Sequential
output [1]
Sequential
output [2]
Sequential
output [3]
Sequential
output [1]
Stop reading (stop reading) Reading succeeded
Continue reading while
reading request is on.
Continue reading while
reading request is on.
z
The prevention time of same read is set between 100 ms and 25,500 ms.
z
Barcode reading does not start until the communication response has completed, even when the prevention
time of same read has elapsed.
z
Barcodes with the same content cannot be continuously read during the prevention time of same read. If bar-
codes have different content, they can be read.
z
A reading failure occurs only when the reading request is turned off without having been able to read even one
barcode.
z
The operation of the OK output, NG output, PWM output, and indicator LEDs varies depending on the settings.
z
The indicator LED (orange) turns on when barcode reading starts if the reading linked control setting is enabled.
It turns off when the set illumination time elapses or when barcode reading stops.
z
The indicator LEDs (green/red) turn on when barcode reading is completed if the reading linked control setting
is enabled. They turn off when the set illumination time elapses.
z
If the reading linked control setting is enabled, reading success/failure or matched/not matched is judged
when barcode reading stops, and the OK output, NG output, and PWM output are controlled according to the
settings.