Symbol MiniScan MS-120X, Integration Manual

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Parameter Menus
Macro PDF Features (MS-2204 and MS-2207 Only)
Transmit Symbols in Codeword Format
Parameter # Afh
Enable this to transmit each PDF symbol as directly decoded data codewords, whether or
not that symbol is part of a macro PDF sequence. Note that data is output as codeword
values, not as interpreted data.
“Codeword values” is an ASCII representation of a number from 000 to 928 for each
codeword, preceded by an escape character. This escape character is a backslash by
default, but you can change this value. For example, the codeword value 005 is sent to the
host in the form of \005 for GLIs, and \C005C for ECIs. This output format is based on the
AIM USA Uniform Symbology Specification for PDF417 (1994).
All output codewords are exactly 4 characters for GLIs and 6 characters for ECIs. However,
there can be non-decodable characters in the PDF symbol, such as a GLI sequence. This
special codeword sequence activates a certain kind of interpretation to the encoded data.
Non-decodable codewords like GLIs are embedded in the output stream like any other
codeword, e.g., \927\001.
Because GLIs are indistinguishable from other codewords in the output data stream, the
host must recognize them as GLIs and process their interpretations.
Note that when a macro PDF sequence is transmitted, the last character in the last block
of data transmitted is always \922 (if selected). This indicates the end of that macro PDF
transmission.