IDEC WB1F Series, Руководство пользователя

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2. Installation & wiring Function 4. Support tool 5. Appendix 1. Overview
3-7
Slave mode
„
Level-triggered
When the reading request is turned on, barcode reading starts. The unit executes reading while the reading request is on.
If the reading timeout time is set to infinity, barcode reading is level-triggered. For details, refer to
"3. 5 Configuration item
table" -
F
P. 3-39 "Barcode reading" .
When the reading request is turned on with the external trigger input, the stop condition is either of the following.
z
Reading succeeded
z
External trigger input off (reading request 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.
Reading request
On
Off
Emitter LED
On
Off
Barcode reading
Start
Stop
Execute
reading
Indicator LED
(orange)
On
Off
On
Communication
response
Reading
results
OK output,
NG output
PWM output
On
Off
On
Indicator LED
(green/red)
On
Off
On
On
Execute reading
On
Reading
results
On
On
On
Stop reading Reading succeeded
Turn off reading request
at arbitrary timing
(excluding command)
Turn off reading request
because barcodes could not
be read.
Stop barcode reading when
reading request is turned off.
Stop barcode reading when
reading succeeded.
Execute reading while
reading request is on.
Execute reading while
reading request is on.
z
The operation of the OK output, NG output, PWM output, and indicator LEDs varies depending on the set-
tings.
z
The indicator LED (orange) turns on when barcode reading starts if the reading linked control setting is en-
abled. 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 stops if the reading linked control setting is
enabled. They turn off when the set illumination time elapses or when barcode reading starts.
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.