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USING POWERSCAN® PD8530

2.6.1 Concatenation

It is possible to concatenate up to 4 different codes, set their length and enable the

intercode delay between them (the intercode delay is set in the specific interface

parameters, see page 28, 30 and 35). When enabling the delay one or more global

headers and terminators are add

ed to the decoded data. The concatenation

procedure may occur in different ways depending on the number of codes to be

decoded per image:

One Code Per Scan

 If the code resulting from the single decoding of an image belongs to one of the

code families to be concatenated, it is saved to the PowerScan® PD8530

memory waiting for other codes to complete the concatenation.

 If the code belongs to the same family of a code previously saved, it overwrites

the old one.

 If the code resulting from the decoding does not belong to one of the code

families to be concatenated, it causes the concatenation failure and clears the

temporary memory. If the "Concatenation Failure Transmission" command is set

to "Tx codes causing failure" (see page 51), this code will be sent in the output

message.

All Codes Per Scan

 All codes resulting from the decoding of an image and belonging to one of the

families to be concatenated are saved to the PowerScan® PD8530 memory

waiting for other codes to complete the concatenation.

 If one or more codes resulting from the decoding belong to the same family of

codes previously saved, they overwrite the old ones.

 When the image contains no code to be concatenated, the concatenation fails

and the reader temporary memory is cleared. If the "Concatenation Failure

Transmission" command is set to "Tx codes causing failure" (see page 51), the

codes causing the concatenati

on failure will be sent in the output message.

Datalogic PowerScan PD8530 User Manual

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