IDEC WB2F User Manual page 46

1. Overview
Multi-Read Batch Output
If Reading Request is turned ON, symbol reading commences and will continue for as long as the Reading Request remains
ON. Once the Reading Request is turned OFF, symbol reading will cease and the Reading Results will be output in batch.
The maximum number of symbol data that can be ouput at once is 32. Symbol data for the Symbol Reading past that will
be discarded.
If the Reading Timeout is set to infinite, Level Activate will occur. For all other cases, Edge Activate will occur.
For more details, refer to
If the Reading Request was turned ON by the external input and level activation, conditions for activating the Stop Read-
ing is as follows:
External Input OFF
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To control the Reading Request using control commands, refer to
each Reading Request]
The following timing chart is an example of an operation with both the External Input and Level Activation
[Reading Success]
ON
Reading Request
OFF
Lighting ON Time
ON
Emitter LED
OFF
Reading
Reading Processing
Execute
[1]
OK
Data Output
ON
External Output
(OK/NG)
OFF
ON
External Output
(Busy)
OFF
The sum of the characters of Reading Results [1] to [N] must be under 10,000 characters.
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If the total number of characters exceeds 10,000, the accuracy of the output results is not guaranteed.
Preventing Double Read Time setting range is 100ms to 25,500ms
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To prevent reading the same symbol twice, the WB2F will not acknowledge symbols with the same symbol-
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ogy and data as the prior symbol during the Preventing Double Read Time. However, this does not apply to
symbols that have either different symbology or data.
The External Output, the Status LED (Green/Red) will show only the WB2F's last Reading Result.
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Operations of the External Output and the Status LED will change based on how settings are configured
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If Reading Linked Control parameter is enabled, the Status LED (orange) will turn ON when symbol reading
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starts. Turns oFF when either the Illumination Time elapses or symbol reading stops.
If Reading Linked Control parameter is enabled, the Status LED (Green/Red) will turn ON when symbol read-
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ing stops. It will turn OFF when the Illumination Time elapses, or symbol reading starts.
If Reading Linked Control parameter is enabled, the WB2F will determine Reading Success/Reading Failure or
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Verification Match/Verification Un-match when symbol reading stops and perform output control based on
the parameters that are set.
2. Installation & wiring 3 Operational Check
F [4. 6 Configuration Item Table]
on page 4-11.
Preventing Double Preventing Double
Read Time Read Time
Reading Reading Reading
Execute Execute Execute
[2] [N-1]
OK OK
Function
on page 4-54.
F [Start Reading and Stop Reading conditions for
[Reading Failure]
Stop Reading
[N]
NG
Reading Reading
Result Result
[1] [N-1]
OK
4-10
5. Appendix
Reading Reading Reading
Execute Execute Execute
[1] [2] [3]
NG NG NG
Reading
Result
NG
Slave Mode
Stop Reading