Datalogic PowerScan M8500 Manuel d'instructions télécharger pdf (Page 150)

POWERSCAN® PD8530

138

Examples

The string transmitted is 12345abcdef3790 and corresponds to the #DS function,

as defined in the programming language.

1) expression  SSTR<#DS,1,5> + SSTR<#DS,11,15> + SSTR<#DS,6,9>

result  12345f3790abcd

2) expression  FSTR<#DS, 616263, 616263, 0> + SSTR<#DS,LSTR<#DS>

-3, LSTR<#DS>

result  abc3790

3) expression  FSTR<#DS, 616272, 616261, 0>

result   null string

4) expression  #DS - FSTR<#DS, 616263, 6566, 0>

result  123453790

During the format definition the decoded string represented by #DS does not change.

Using Format Output in Format Definition

The input used by the above functions to define the code formatting usually

corresponds to the decoded code (#DS). Actually, the formatting expression of each

function can also format the result (output) produced by a preceding code formatting.

The format output is represented as follow:

#F<n>, where:

<n> = format number in the range 1-4

#F = format output

Being Format 5 not included in other format expression, the format number is in the

range 1-4. Furthermore, since a format expression operates upon the output of the

preceding formats, the expression defining Format 1 will never contain the result of

another format.

Example

The following expression is used to define Format 3:

#DS + FSTR<#F2, 6173, 6263, 0>

The expression input consists of the decoded code and the result produced by

Format 2 (#F2).

The FSTR function searches for a defined substring within the #F2 result; then, it

concatenates this substring and the decoded code. The result corresponds to #F3

output.

1 2 ... 145 146 147 148 149 150 151 152 153 154 155 ... 159 160

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Datalogic PowerScan M8500 Manuel d'instructions Page 150