00197088-03_AI_Barcode_SICK620_SX12_X-S_TX_DE_EN.pdf - 第122页
5 Appendix 5.2 General Notes About the Barcode 122 Assembly Instructions / Montageanleitung SIPLACE TX-Series, X-Series S, SX1/SX2 V2 Option PCB Barcode / LP-Barcode (Lector 620) 05/2019 5.2 General Notes About the Barco…
5 Appendix
5.1 Circuit Diagrams
Assembly Instructions / Montageanleitung SIPLACE TX-Series, X-Series S, SX1/SX2 V2
Option PCB Barcode / LP-Barcode (Lector 620) 05/2019
121
Fig.80: Lector 620 at SIPLACE TX-Series - 2
5 Appendix
5.2 General Notes About the Barcode
122 Assembly Instructions / Montageanleitung SIPLACE TX-Series, X-Series S, SX1/SX2 V2
Option PCB Barcode / LP-Barcode (Lector 620) 05/2019
5.2 General Notes About the Barcode
In this day and age, increasing numbers of components, individual components, semi-finished and
end products are being uniquely identified with a barcode, which makes them easier to check. This,
in turn, makes it easier to control production, stock-keep and to trace components in the event of
errors. Both one-dimensional (1D, e.g. barcodes) and two-dimensional (2D, e.g. data matrix codes)
codes can be used.
NOTICE
Barcode changeover
Before you use a new barcode, we recommend that you contact your SIPLACE Service
team and have the barcode tested in advance.
5.2.1 Structure of 2D Barcodes
Barcode types:
1. "Stacked" codes, these are essentially one-dimensional barcodes that are printed directly over
one another. Typical stacked barcodes include the PDF 417, RSS-14 Stacked and the 16K
code.
Fig.81: Stacked barcodes
2. 2D barcodes, known as "matrix codes" are another variant of the 2D barcodes. Again there
are various types commonly used, such as Aztec code, Maxi code, Code One and the data
matrix code.
Fig.82: 2D barcodes
Data matrix code:
The data matrix code consists of 4 main components.
Fig.83: Four main components of the data matrix code
1 Corner 2 Opposite corner
3 Storage area 4 Rest zone
5 Appendix
5.3 Excerpts from the Service Manual
Assembly Instructions / Montageanleitung SIPLACE TX-Series, X-Series S, SX1/SX2 V2
Option PCB Barcode / LP-Barcode (Lector 620) 05/2019
123
1. This fixed dividing line (corner):
This is used for pattern recognition and to calculate the rotary position of the data matrix code.
2. The unclosed border (opposite corner):
This open corner is used to identify the number of lines and columns. This is known as the
"matrix density“. On the ECC 200, the element in the top right-hand corner is white.
3. The storage area:
This contains the binary information in coded form. Depending on the cell size, it also defines
the number of possible items of information.
4. The "quiet zone":
This empty zone surrounds the data matrix code. It contains no information and is not used for
orientation. The width of the rest zone is one field or one line.
Advantages of data matrix code:
●
Flexible in terms of the range of applications
●
Very high information density in the smallest space (over 2000 characters)
●
Scanning is possible from any angle
●
Minimal requirements in terms of color contrast and print quality and thus suitable for direct
labelers (e.g. laser labelers or needle embossing) as these require less contrast than for bar-
codes. This means that less contrast is needed than for barcodes.
●
Error correction using the "Reed-Solomon" algorithm: up to 25 % of the code may be dam-
aged.
Sample applications:
●
Scanning permanent direct labels (e.g. on tools, motor components, drive parts, surgical in-
struments, etc).
●
Production / manufacturing (identification of electronic components, tools)
●
Chemical and biomedical analysis instruments
●
PCBs
Fig.84: Data matrix - and DOT matrix barcodes
5.3 Excerpts from the Service Manual
The following chapters are excerpts from the service manual for your machine. If required, further
information is provided there.
●
Service Manual SIPLACE SX1/SX2 V2 [DE:00196999‑xx] [EN:00197000‑xx]
●
Service manual SIPLACE TX-Series V1 [DE:00198149‑xx] [EN:00198150‑xx]
●
Service manual SIPLACE TX-Series V2 [DE:00198538‑xx] [EN:00198539‑xx]
●
Service manual "SIPLACE X-Series S" [DE:00197041-xx] [EN:00197042‑xx]