Operating instructions

Operating Instructions Chapter 11

CLV63x Bar Code Scanner

Appendix

Parameter value set

Data set which is used to initialise and activate the implemented functions of the bar code

scanner. Transferred using the upload (all parameter values only) or download from the bar

code scanner SOPAS-ET configuration software or vice versa.

Raster scanner

Scanner that uses a polygon mirror wheel with tilted mirrors to deflect its focused laser

beam extremely quickly. As a result, it creates a light spot that moves quickly in several rows

across the reading plane. Each light spot repeatedly moves along a straight line. It thereby

appears to human eyes as one of several stationary scan lines.

Reading angle (RA value)

The reading angle from the reading window to the red scanning line of the scanning beam

under which the middle of a bar code is detected. Recorded by the bar code scanner for

each scan and used, e. g., for the separation of bar codes with identical data contents. For

the decoding process, the active analysis area along the scanning line can be restricted ap-

plication- specifically by presetting the minimum and maximum RA values.

Reading diagnosis data

Code-, object- or device-related data which the bar code scanner derives directly from the

reading process. The data allows, among other things, an assessment of the reading quality

and to draw conclusions on the reading process.

Reading gate, reading interval

Time window in which the bar code scanner switches on the scanning line and attempts to

recognise valid bar codes from the read information. The reading gate can be shorter than

the external reading pulse, depending on the output mode of the selected reading result.

Reading pulse

Triggering of the internal reading gate via a bar code scanner-external pulse is carried out

by means of an external trigger source such as a photoelectric reflex switch or a command

string via the data interface. With internal trigger source "automatic tick", the bar code scan-

ner creates the reading pulse itself.

Reading range (DOF)

Depth of field at both sides of the lens focal point at the reading level. The size of the range

depends on resolution and reading distance.

Reading result

Electronic display and output of the data contents of the scanned bar codes together with

reading diagnosis data in a data output string at the defined output time.