Datalogic PowerScan PD8530 Reference Manual

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Datalogic PowerScan PD8530 Reference Manual Manual pdf 146 page image

POWERSCAN® PD8530134B PROGRAMMING FOR EXPERT USERSThis document is addressed to expert users who are familiar with softwareprogramming languages and want to define a personalized code formatting. Theprovided programming language allows creating either simple or complex formattingexpressions by means of the basic functions connected together through thefollowing operators: (, ), -, +.The syntax to be used to transmit the expressions to the PowerScan® PD8530 is thefollowing:$+ELBformatting expression$-where: is a number in the range 1-5 corresponding to the format to be defined; is the conventional character used as terminator of the command; the formatting expression uses ASCII characters when containing text strings.For this reason, the string must be inserted between two quotation marks. Thefollowing example shows the ASCII conversion of the "ABC" string:$+ELB1414243+#DS^C$-.FUNCTION DESCRIPTIONAll the functions and conventions to be used within the formatting expressions arelisted below:FUNCTION NAME DESCRIPTIONFSTR Searches for a defined substring by its starting and endingstring.FLSTR Searches for a defined substring by its starting string and itslength.SSTR Extracts a defined substring from the original string.FPOS Searches for a position of a defined substring within theoriginal string.LSTR Returns a string length.ISTR Insert a substring in the original string.RSTR Substitutes a defined substring contained in the originalstring with a new one.