Microscan MS-3 User Manual page 217

Related PDF Utility Commands
PDF417 Info Output Command <a1>
You can initiate an information output mode by sending the read the <a1> command.
PDF-417 symbols read subsequent to this command will have a leading header of infor-
mation about the decoded symbol. An example of the output for a ECC level 4 test sym-
bol Microscan PDF-417 Test Symbol ECC Level 4 is as follows:
ECC Level 4
20 Rows 3 Columns
28 Data Code Words
32 Error Correction Code Words
40 Encoded Data Bytes
Microscan PDF-417 Test Symbol ECC Level 4
PDF-417 Code Word Output Command <a2>
You can request the output of the PDF symbol's code words decoded in the last trig-
gered read cycle.
There are two forms of data output:
1. The first stream of data output will be the symbol's code words prior to a success-
ful error correction and data translation. Erasures or missing code words are dis-
played with a "?" in place of the code word.
2. Following that will be the corrected or restored matrix of the symbol's code words.
Chapter Appendices
MS-3 Laser Scanner User's Manual
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