A10011-ASM-T45-EN-Spec-E_DMS.pdf - 第33页

33 Vision Sensor Technology Reading the barcode and data matrix code with a PCB camera 1D Barcodes Code types Code 39 Code 93 Code 128 EAN-8 (AddOn 2, AddOn 5), EAN-13 (AddOn 2, AddOn 5) Interleaved 2 of 5 (station softw…

Vision Sensor Technology

Reading the Barcode and Data Matrix Code with a

PCB Camera

Description

The PCB camera can read

either a barcode or a data

matrix code. The data can be

used for traceability pur-

poses.

The barcode can be on the

board itself or on a compo-

nent. In addition, it is also

possible to attach a barcode

label to a board or a compo-

nent and to then read this

barcode label with the PCB

camera, directly after place-

ment. The focal height must

be taken into account during

reading, if there is a barcode

or barcode label on the top of

a component.

Data Matrix Codes

Code types supported Only Data Matrix ECC 200 is supported.

No. rows/columns All combinations of rows/columns as defined in the standard will be

accepted, including rectangular symbols and large symbols with multi-

ple data areas.

Minimum dot size 50 µ

Maximum size of data matrix

codes

≤ 30 mm and Y ≤ 30 mm, or

≤ 10 mm and Y ≤ 100 mm, or

X ≤ 100 mm and Y ≤ 10 mm

Symbol angle All symbol angles will be accepted.

Inverse symbols Inverse symbols (light modules on a dark background) will be

accepted.

Mirrored symbols Mirrored symbols will be accepted.

(Station software version 707.1 SP2 or higher required)

Ratio of column width to row

height

1/2

≤ (column width) / (row height) ≤ 2

Region of Interest (ROI) The area in which the barcode is searched for (ROI) should not

exceed the following values:

Width of ROI

≤ 6 * width of barcode symbol

Height of ROI

≤ 6 * Height of barcode symbol

Contrast Minimum 20 gray values.

Print growth The size of a module must be at least 1/3 of the cell size in the data

matrix grid.

The size of a module must be at most 5/3 of the cell size in the data

matrix grid.

Vision Sensor Technology

Reading the barcode and data matrix code with a

PCB camera

1D Barcodes

Code types Code 39

Code 93

Code 128

EAN-8 (AddOn 2, AddOn 5), EAN-13 (AddOn 2, AddOn 5)

Interleaved 2 of 5 (station software version 709.1 or higher required)

Minimum width of bar 50 µ

If the quality of the marking is high enough, the width can be reduced

down to 30 µ.

Maximum size of barcode X

≤ 30 mm and Y ≤ 30 mm, or

X ≤ 10 mm and Y ≤ 100 mm, or

≤ 100 mm and Y ≤ 10 mm

Minimum height of symbol 5% of length of whole symbol.

Symbol angle All symbol angles will be accepted.

Inverse symbols Light bars on a dark background will be accepted.

(Station software version 708.0 or higher required)

Mirrored symbols Mirrored symbols will be accepted.

(this corresponds to a rotation of 180 degrees for 1D codes)

Region of Interest (ROI) The area on the board, in which the barcode is searched for (ROI),

should not exceed the following values:

ROI (direction of reading)

≤ 3 * symbol width

ROI (vertical to direction of reading) ≤ 10 * symbol width

Uniformity of bars and spaces Each bar and space represents 1 to 4 bits (applies to all code types

implemented), whereby the number of bits corresponds to the width of

the bar/space. When the barcode is read with the PCB camera, it is

assumed that the code is flat. This is why the same nominal width is

applied to all bars and spaces in the symbol when reading 1D bar-

codes with the PCB camera. As a consequence, barcodes cannot be

read if a bar/space with n bits appears to be smaller than another bar/

space with n-1 bits.

01005 Placement

In its standard version, the E

by SIPLACE is designed for

placement of 01005 compo-

nents (0.4 mm x 0.2 mm).

The SIPLACE component

library already contains the

contours and dimensions of

01005 components. Spe-

cially developed component

nozzles of type 1005 are also

available for the E by

SIPLACE. These are

adjusted to the shape and

size of the 01005 compo-

nents and have - as with all

other SIPLACE nozzles - a

highly wear-proof ceramic tip

and flexible nozzle seat. This

guarantees maximum preci-

sion and process reliability.

Optimized pickup is guaran-

teed by the ideal feeding

conditions in the SIPLACE

SmartFeeder E module. The

smaller the elements to be

picked up, the more accurate

the pickup needs to be.

Pickup is performed contact-

free to compensate minor

inaccuracies e.g. from com-

ponent or pocket tolerances

and to prevent mechanical

damage to the components.

The design of the SIPLACE

SmartFeeder E modules

takes this problem into

account: new motors and the

reduced use of fine mechan-

ics help. Small components

can be placed without perfor-

mance loss with minimum

pitch and irrespective of the

larger components which are

next to the 01005 compo-

nent. This equates to true

01005 capability. As a rule

with 01005 placement, a

finely tuned overall process

is the basic requirement if

you want to achieve excel-

lent results.

For high volume production

It's recommended that CP14

be use for 01005 placement.

The CP14 head is immediate

ready for 01005 placement.

For CP12 head

An additional option - 01005

package CP12 E (sales num-

ber: 288605), needs to be

purchase. This option

includes nozzles and three

low force sleeves needed for

01005 placement by CP12

head.

The following table shows typical values for 01005 placement,

which can be achieved with a E by SIPLACE, provided the rel-

evant underlying conditions are fulfilled:

Machine type

E by SIPLACE

Placement head SIPLACE CP14 with

component camera type 23 GigE

Feeder module type SIPLACE SmartFeeder 8 mm E

SIPLACE SmartFeeder 2x8 mm E

Pickup rate ≥ 99,97%

Dpm rate ≤ 5

Pad width ≥ 200 µm

Pitch ≥ 100 µm

Components (L x W x H) 400 µm x 200 µm x 200 µm (±20 µm)

Number of pixels for a

01005 component

275

Solder paste type 5

Template thickness 60 µm