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User Manual SIPLAC E HS-60 7 Station extensions Software version SR.503.xx 07/2003 US Edition 7.4 PCB barcode 163 7 Fig. 7.4 - 2 PCB barcode reading head, profiled rails for PCB barcode reader ’bottom’/’top’ 7 (1) PCB ba…

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7 Station extensions User Manual SIPLACE HS-60
7.4 PCB barcode Software version SR.503.xx 07/2003 US Edition
162
7.4 PCB barcode
7.4.1 Overview
The PCB barcode reader is used to automatically record and decode barcodes on PCBs. The
PCB barcode reader sends the read data via its serial interface to the transport controller and then
for further processing to the machine controller via the CAN bus.
7
Fig. 7.4 - 1 PCB barcode block diagram
The PCB barcode readers are installed on the input side of the placement machine, above and
below the PCB conveyor, so that barcode labels on the topside and underside of the PCBs can
be read.
A maximum of four PCB barcode readers may be retrofitted in order to read the topside and un-
derside of the PCB on the transport track.
Device number
1
Barcode
reader
top
Distribution
board
Transport
controller,
right
Barcode
reader
bottom
2
3
Barcode
reader
top
Distribution
board
Transport
controller,
left
Barcode
reader
bottom
4
Machine
controller
Station
computer
SIPLACE Pro/
line computer
LAN
CAN
bus
V-24V-24
User Manual SIPLACE HS-60 7 Station extensions
Software version SR.503.xx 07/2003 US Edition 7.4 PCB barcode
163
7
Fig. 7.4 - 2 PCB barcode reading head, profiled rails for PCB barcode reader ’bottom’/’top’
7
(1) PCB barcode reading head
(2) Profiled rail for ‘underside’ PCB barcode reader
(3) Profiled rail for ‘topside’ PCB barcode reader
(T) Direction of PCB transport
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. De-
pending 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 Station extensions User Manual SIPLACE HS-60
7.4 PCB barcode Software version SR.503.xx 07/2003 US Edition
164
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 in-
creases placement reliability. It recognizes all the code types conventionally used in industrial ap-
plications.
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 au-
tomatically select the correct barcode allocation list from the previously created barcode assign-
ment 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 procedure is carried out time neutrally during
placement of the PCB already in the machine. If several PCBs with the same barcode enter in
succession, the program is only transferred 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 interface.
This is absolutely essential. The placement program cannot be supplied automatically.
7.4.3 Technical data
7
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