Chapter 5
Programming Via Escape Sequences
5–11
Code Selection Snytax
Esc – y <n> F
Binary Value Function
1
2
4
8
16
32
Code 39
Interleaved 2 of 5
UPC/EAN
Codabar
Code 128
Code 11
Values of n: 0 . . . 63
The default value of <n> is 63, all codes enabled.
Code Selection Example
To enable Code 39, Interleaved 2 of 5, UPC/EAN and Code 128, <n> is
constructed by adding up the binary values.
Code 39 1
Interleaved 2 of 5 2
UPC/EAN 4
Code 128 16
Total 23 <n> = 23
The escape sequence to be sent to the decoder is Esc – y 23 F
Note: Since the binary values for Codabar and Code 11 were not included in
the calculation of <n>, these bar code symbologies will be disabled.
Check characters are supplemental characters added to a bar code symbol to
allow the verification of decoded data.
Using Check Characters
Each of the bar code symbologies supported by the decoder has one of the
following 3 types of check characters:
• Optional
• Mandatory
• Undefined
Optional Check Character
The following codes have an optional check character. Check character
verification is configurable.
• Code 39
• Interleaved 2 of 5
Check Characters
Esc – y – <n> G
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