西门子SIPLACE S-27 HM用户手册.pdf - 第177页

User Manual SIPLAC E S-27 HM 7 Station extensions Software vers ion SR.503.xx 07/2003 US Edition 7.4 PCB b arcode 177 7.4.3 T echnical dat a 7 7 * This v alue can onl y be ach ieved if the barc ode label on the PCB passe…

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7 Station extensions User Manual SIPLACE S-27 HM
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The PCB barcode readers are fixed to the top and bottom profiled rail using retainers. These can
be positioned as required on the profiled rails, and aligned with respect to the barcode labels.
Depending on the position of the barcode strips, the barcode reader can be attached in a few
simple steps so that the strips can be read parallel to or across the PCB transport direction.
7.4.2 Description of the functions
7.4.2.1 PCB barcode reader for the single conveyor
The SIPLACE PCB barcode reader supports the flexible manufacture of SMD products, and
increases placement reliability. It recognizes all the code types conventionally used in industrial
applications.
The laser scanner reads the barcode label on the topside or underside of each incoming PCB as
they are transported onto the input conveyor. The barcode data enables the line computer to
automatically select the correct barcode allocation list from the previously created barcode
assignment list, and sends it to the station. If a barcode filter is defined, only information that is
identified as relevant within the barcode is compared. This is a time-neutral operation that takes
place while a PCB already in the machine is placed. If several PCBs with the same barcode
enter one after another, the program is only sent the first time. The following requirements apply
to all products to be produced using the PCB barcode:
– The component set-up must be identical on all the machines on the line
– All PCBs must be of the same width
7.4.2.2 PCB barcode reader for the dual conveyor
On the dual conveyor, the PCB barcode is only used to transfer the barcode via the GEM inter-
face. This is absolutely essential. The placement program cannot be supplied automatically.
User Manual SIPLACE S-27 HM 7 Station extensions
Software version SR.503.xx 07/2003 US Edition 7.4 PCB barcode
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7.4.3 Technical data
7
7
* This value can only be achieved if the barcode label on the PCB passes through the scanner
perpendicular to the machine’s transport direction.
**The position of the barcode scanner on the input conveyor can be easily adjusted, depending
on where the barcode labels are located on the PCBs.
Max. component sizes for the single
conveyor
Standard: (L x W) up to 460 mm x 460 mm
Option: (L x W) up to 508 mm x 460 mm
(same width for all the jobs in a sequence)
Label dimensions Stroke width B: 0.19 < B ≤ 0.3 mm
(corresponds to high and medium density)
Stroke length: ≥ 4 mm*
Length of the barcode template window ≤ 90 mm
Label alignment on the PCB ** Parallel or perpendicular with respect to the PCB
transport direction, as close as possible to the sta-
tionary PCB transport side.
Label colors (contrast ratio > 70% to
DIN 66236)
Coding: black, dark green, dark blue
Background: white, beige, yellow, orange
Code types Code 39, Code 128 / EAN 128,
Codabar, 2/5 IATA 2/5 industrial,
2/5 interleaved, UPC, EAN,
Pharma Code, EAN Addendum
(others available upon request)
Complete barcode Up to 25 digits (a barcode filter can also be defined)
Laser scanner safety Laser diode 670 nm (red) / 1.2 mW
Laser protection class 2, type of protection IP65
Station and line software Version 502.xx or later
Scanning / analysis duration Time neutral (T ≤ 1 s), since it is carried out in parallel
to placement of the previous PCB
7 Station extensions User Manual SIPLACE S-27 HM
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7.4.4 Assembly options for the PCB barcode reader
Fig. 7.4 - 2 Assembly options for the PCB barcode reader
Front view Side view
Assembly for
PCB barcode on
the PCB topside
Assembly for
PCB barcode on
the PCB underside
Plan view
Position of the PCB barcode
reader if the barcode strip
is aligned parallel to
the PCB transport direction.
Position of the PCB barcode
reader if the barcode strip
is aligned perpendicular to
the PCB transport direction.
Profiled rail
PCB barcode
reader ‘topside’
PCB barcode
reader ‘underside’
Profiled rail