read large ean 128 barcode

[dvm_sin(Legacy Member)]

Joined: December 20 2005
Posts: 2 Posted: December 20 2005 at 10:24am | IP Logged

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Hi, we've got a client that needs to encode a large alphanumeric value which results in a large barcode. The resulting code is too large for the scanner to read.
Could we break it apart in, say, two rows; so we first scan the first row, read the second row and then have the data?
e.g. what I'm trying to ask is break this:
|| ||| ||| ||||| |||

into this:
|| ||| ||| <-- 1st pass

||||| ||| <-- 2nd pass

and have it read as one ean 128 barcode

[glitch (legacy member)]

Depends on your application, you can break EAN128 barcode into a series of AI+data.

Or you can use 2D barcodes to encode large data.

[dvm_sin(Legacy Member)]

Would this work with a simple scanner? I don't think it has a trigger and we would need to scan the first pass, scan second pass and then have the "beep".
The series of AI + data that you mention would require a
SC + FNC1 + AI + Data + CH + EC for each part?

where SC = start code, CH = checksum, EC = end code.
Or could it read a
SC + FNC1 + AI + Data (1st pass)
FNC1 + AI + Data (2nd pass)
FNC1 + AI + Data CH + EC) (say a 3rd pass)?
The above is what we would like to have. I don't think we have access to the scanners driver to check ourselves what we read.

[glitch (legacy member)]

You will need a scanner capable of "input buffering" in your case. A better solution is to change the behavior at the application side to buffer the scanner input.