Microcom 438TM, Руководство оператора

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Bar Codes Chapter 8
8-10 438TM Operator’s Manual - 880049-0113
ECC_Level<CR>
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 code words. A carriage return character must be used to terminate this field.
Aspect Ratio<CR>
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 and has a range from 1
to 9. 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 8-3 PDF-417 Error Correction Level
The following format samples show how to generate a PDF-417 bar code:
Sample Format #1:
^D77<CR>
:PDF-417 bar code data^\
3<CR>
30<CR>
0<CR>
0<CR>
0<CR>
2:1<CR>
^D57<CR>
2,832,609,,25,6,0,1,264<CR>
1,416,300,1,46,,,4,2,10<CR>
2,416,200,11,1,5,,4<CR>
^D56<CR>
^D2<CR>
P<CR>
Text string<CR>
^D3<CR>
Figure 8-9 PDF-417 Sample Format #1
Text string