Operation
56
SICK Optic-Electronic
Bar Code Scanners
4
Description Abbre- Function Determination Transmission Figure
viation in block
Scan CA • Indicates total number of scans required For every bar _ 4-4
Expenditure to fulfill specified number of multiple reads code in a single
(identical scans) reading gate
Total Scan GCA • Internal arithmetical number representing the _ 4-4
Expenditure number of all scans taking place in period
between first and last identical scans The
number depends both on the bar code quality
and on the specified transmission time
(sending point) of bar code data
Identification CG • Indicates relative measure of quality for Separator 4-4
Quality reading status for one reading gate. The
decoder calculates this value as follows:
CS
CG = –––––– x 100%
GCA
Reading Gate TT • Indicates length of time from the beginning of For every Terminator –
Duration the reading gate until evaluation criteria are met reading gate
for all bar gate code labels encountered.
Number of CC • Indicates number of all bar code labels detected Header / _
Codes according to selection criteria Terminator
Detected
Device ID GN • Indicates the CLV identification number in a Terminator _
Number CLX 200 network configuration
Average MG • Indicates average value of identification quality Header _
Reading (CG) from preceding reading gates
Evaluation
The decoder calculates this value as follows:
(a x MG
old
) - (b x CGM)
MG
new
= —————————————
(a-b)
a = 63
b = 1
(63 x MG
old
) - (1 x CGM)
MG
new
= —————————————— %
64
• The average value provides a trend indication
for the reading performance of the CLV from
preceding period up to the present
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