Honeywell THOR VM1, Справочное руководство, Страница: 160 / 324

Length Based Bar Code Stripping
Use this procedure to create symbology rules for two bar codes with the same symbology but with different discrete lengths.
This procedure is not applicable for bar codes with variable lengths (falling between a maximum value and a minimum value).
Example:
For the purposes of this example, the following sample bar code parameters will be used – EAN 128 and Code 128 bar codes.
Some of the bar codes start with ‘00’ and some start with ‘01’. The bar codes are different lengths.
l
34 character length with first two characters = “01” (strip first 2 and last 18)
l
26 character length with first two characters = “01” (strip first 2 and last 10)
l
24 character length with first two characters = “01” (strip first 2 and last 8). This 24 character bar code is Code 128.
l
20 character length with first two characters = “00” (strip first 0 (no characters) and last 4)
On the Data Options tab, set Enable Code ID to Custom.
Create four custom IDs, using 1 for EAN 128 bar code and 0 for Code 128 bar code.
l
c1 = Code = ‘]C1’
l
c2 = Code = ‘]C1’
l
c3 = Code = ‘]C0’ (24 character bar code is Code 128)
l
c4 = Code = ‘]C1’
Custom symbology setup is assigned in the following manner:
l
c1 min length = 34, max length = 34, strip leading 2, strip trailing 18, Code ID enabled, Bar Code Data = “01”
l
c2 min length = 26, max length = 26, strip leading 2, strip trailing 10, Code ID enabled, Bar Code Data = “01”
l
c3 min length = 24, max length = 24, strip leading 2, strip trailing 8, Code ID enabled, Bar Code Data = “01”
l
c4 min length = 20, max length = 20, strip leading 0, strip trailing 4, Code ID enabled, Bar Code Data = “00”
Add the custom symbologies. Refer to the previous section Symbology Settings for instruction.
3-98