Microcom 322M - Manual (Page 84)

Bar Codes Chapter 9
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322M Operator’s Manual
ECC_Level
The ECC_Level parameter is used to set the level of error correction of the PDF-417
symbology with a default value set to 0. This parameter can only be used if the ECC%
parameter is set to 0. Refer to Table 17 for the valid ECC_Level values and their equivalent
correction codewords. A carriage return character must be used to terminate this field.
Aspect_Ratio
This parameter is used to adjust the aspect ratio of the PDF-417 symbology. The value is
entered in ratio format (height: width) and has a default value of 2:1. A carriage return
character must be used to terminate this field.
ECC#
Number of Error Correction
Codewords
0 2
1 4
2 8
3 16
4 32
5 64
6 128
7 256
8 512
Table 17 PDF-417 Error Correction Level
The following format samples show how to generate a PDF-417 bar code: