Công nghệ SMT máy DEK bô đọc mã vạch và xác nhận

Công nghệ SMT máy DEK bô đọc mã vạch và xác nhận Overview BARCODE READER Remote Barcode Reader Handheld Barcode Reader Overview Verification and Traceability Introduction Purpose Operation Reference Electrical Schematic FITment Procedures ...........

OVERVIEW - BARCODE READER

CHAPTER 29 BARCODE READER AND VERIFICATION AND TRACEABILITY

OVERVIEW - BARCODE READER

WARNING RADIATION RISK OF INJURY TO THE EYES DUE TO LASER LIGHT BEING PRESENT IN THE VICINITY OF THE LABEL DO NOT LOOK AT THE LIGHT SOURCE OR REFLECTIONS FROM A SURFACE.

CAUTION LASER CONTROLS AND ADJUSTMENTS USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HERIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

CAUTION EQUIPMENT SERVICING THE LASER DOES NOT CONTAIN USER

SERVICEABLE PARTS OPENING THE UNIT COULD CAUSE MIS-ALIGNMENT OF THE LASER, THIS MAY MAKE THE EQUIPMENT DANGEROUS TO OPERATE.

There are two types of barcode readers that may be fitted to the machine:

• Remote Barcode Reader

• Handheld Barcode Reader1D or one dimensional barcodes are the most common barcodes consisting of

a single row of different width bars

2D or two dimensional barcodes consist of square modules constructed in a matrix that may be square or rectangular

NOTE There are many different formats of barcodes: Data matrix, Aztec, QR, PDF

417 In the graphics above, these are single examples to demonstrate the difference between 1D and 2D barcodes.

Example of a 1D Barcode

Example of a 2D Barcode

OVERVIEW - BARCODE READER

Remote Barcode

Reader The remote barcode reader is located on the input conveyor to the printer and reads the barcode of the incoming product It also provides information to the

Verification and Traceability software option

Figure 29-1 Remote Barcode Reader Hardware

The system comprises a mounting stand, the reader, a suitable barcode on the product (not shown), an in-line trigger sensor and a set of configuration cards The stand is mounted onto a customer’s input conveyor The configuration cards are used to aid the barcode reader set up and calibration The sensor is attached forward of the reader using a Velcro fastener

During the board/product transfer cycle, with the remote barcode option enabled, the trigger sensor detects the board on the conveyor; it triggers the remote barcode reader to read the barcode, before the board is passed into the printer

Handheld Barcode

Reader The primary function of the handheld barcode reader is to scan consumables and user information for the Verification and Traceability software The

consumables scanned include:

• Screen

• Print Material

• Solvent

• Cleaner PaperThe handheld barcode reader may also be used to scan the first board of a batch that is to be checked by the remote barcode reader during a print run.Different types of handheld barcode readers may be used, however, DEK currently only supply one option

Configur ation

OVERVIEW - VERIFICATION AND TRACEABILITY

Introduction Verification and traceability is a software tool that validates (verification) certain

items before printing and records data (traceability) to a file

Purpose Verification ensures that the product and the consumable items used in the print

process match the information stored in the product file

At the end of each print cycle, verification information is written to the traceability file This information may be used to trace particular batches of a product run and identify all the consumables used for that batch

consumables fitted to the machine This is achieved by either scanning the barcode using the handheld barcode reader or entering the identity information using the keyboard

During the print run, the product is automatically scanned by the remote barcode reader located on the input conveyor; the data scanned in, is stored for traceability with the print data Each board is checked against the information stored in the product file

When a consumable item is replaced on the machine, the operator is requested

to verify the item by entering the identity of the item This is checked against the information stored in the product file before the print cycle can continue

Reference For further details refer to the Verification and Traceability Manual p/n 197900

FITMENT PROCEDURES

These procedures detail how to fit and set up the equipment

Fitting the Remote

Barcode Reader 1 Select Shut Down and switch the mains isolator to OFF.

2 Securely mount the remote barcode reader on it’s mounting stand

3 Mount the unit onto the upline conveyor, ensuring that the reader is in a position to read the barcode on the product

NOTE Because conveyor systems vary, the remote barcode reader is supplied on

a fully adjustable mounting stand This stand should be secured in a suitable location on the input side of the conveyor

4 Fit the trigger sensor just forward of the reader (a Velcro fastener is used for attaching it)

NOTE The leading edge of the incoming board, triggers the remote barcode reader into activation, enabling it to read the barcode on the board A crosshair provides an alignment check to target the label in the correct location.

5 Remove the printer’s rear panel to gain access to the PC

6 The Power and Signal (Barcode Reader) and the Trigger Sensor cables are combined into one loom Route the loom from the conveyor, under the DEK printer exiting at the rear

7 Attach the D type connector to the USB conversion cable - 9-pin D type (USB to Serial (RS232))

8 Power up the printer at the mains isolator

9 On the MMI, select Start.

10 Select Run.

11 Type ‘pnpon’ in the command box

12 Restart the computer

13 Insert the ATEN USB to Serial (RS232) Driver Disc into the CD ROM drawer

on the PC

14 The ATEN installation pane is displayed

Product with Barcode Label

Trigger Sensor

Barcode Reader Power and Signal

Board Feed Direction

FITMENT PROCEDURES

15 Select Next.

16 A windows information pane is posted; select Continue Anyway.

17 After installation completes select Finish.

18 Select Shut Down and switch the mains isolator to OFF.

19 Connect the USB plug to USB8 on the PC (extreme right hand location)

20 Remove and retain the four pan headed screws, which hold the M37 Power Supply Enclosure in place

21 Slide the enclosure forward to gain access to the connectors at the rear

22 Connect the power lead M37SK13

23 Replace the M37 enclosure and secure it with the four screws previously removed

24 Power up the printer at the mains isolator

33 Select Back.

34 Refit the rear panel ensuring that the cables are not trapped

35 Use the configuration code cards to configure the remote barcode reader (described later in this chapter)

Fitting the

Handheld Barcode

Reader

1 Select Shut Down and switch the mains isolator to OFF.

2 Gain access to the 4 port USB hub behind the front panel

3 Connect the handheld barcode reader to a spare USB port on the hub

4 Connect the dc power connector (located near the 4 port USB hub) to the moulded connector on the cable of the handheld barcode reader

5 Refit the front cover ensuring that the cable is routed between the MMI monitor bracket and the front cover

6 Power up the machine

7 Select Maintenance.

8 Select Machine Setup.

9 Select Barcodes.

4 Port USB Hub

FITMENT PROCEDURES

10 Select Handheld Barcode HW.

11 Select Fitted.

12 Select Accept.

13 Select Start Character.

14 Set the start character for the barcode (see barcode label below)

15 Select Accept.

16 Select Name Length

17 Set the name length for the barcode

18 Select Accept.

NOTE The barcode set up is shown in code format The code format for a barcode

of length 14 starting at character 4 would be:

The start character is the numerical position in the barcode from which to start, ignoring any previous characters

The name length is the amount of characters to be considered, beginning with the start character

In the following example, the barcode is made up of the product type, batch number and date code:

If the batch number was the only part of the barcode that needed to be

considered for verification, the start character would be 7 and the name length would be 2.

NOTE Once the start character and name length are set, i.e for solvent, this is global Solvent in all the product files on this machine must use the same barcode format.

To set the start character and name length for the required verification items, use the following procedure:

1 Select Maintenance.

987654 321012

Product Type

Batch Number

Date Code

2 Select Machine Setup.

3 Select Barcodes.

The following page is displayed:

4 Highlight the required item in the table

NOTE The sort direction button switches the table display alphabetically between

A to Z and Z to A.

5 Select Edit.

6 Select Name Length.

7 Enter the required name length

8 Select Start Character.

9 Enter the required start character

20 1

1 1 1 1 1 1 1 1 1 1 1

20

20 20 20

20

20 20

20

20 20

20

Squeegee Holder Front Squeegee Holder Rear Screen

Cleaner Paper

Print Medium Print Medium Cartridge Cleaner Solvent

Squeegee Blades

Tooling

Board Identifier

ProFlow Cassette ProFlow Head

Name Length

Sort Direction

2 Select Machine Setup.

Dependent upon the options available, the following page is displayed:

Network Replication The traceability file is saved on the hard drive of the PC and may also be

replicated to a network drive, use the following procedure to enable replication:

Verification

Disabled

Traceability

Disabled

FITMENT PROCEDURES

The following page is displayed:

4 Select Traceability Network Output.

5 Select Enabled.

6 Select Accept.

7 Select Traceability Network Drive.

8 Select the drive followed by the directory where the traceability files are to

be stored on the network

Help

Maintenance \ Machine Setup \ Network

Language Cancel

Back

Machine Location

Remote Product Path

Run With GEM Remote

Traceability Network Drive

Gerber Directory

Remote Data Path

Traceability Network Output

E:\config E:\Product

Disabled

Enable Comms

Figure 29-2 Example Configuration Code Card

The reader displays a green power on indicator Selecting the EZ button activates the unit, lighting a green LED which emits a single flash; this indicates that the unit is ready to scan the cards

Configuration Code

Functionality: Start Configuration

Laser Light Source

EZ Button Status Indicators

Power ON

READER SET UP

Card 1 Card one sets the configuration scan to the Start Configuration mode

Card 2 Card two sets the configuration scan to the correct COMMS and sets the trigger

functionality

Card 3 Card three sets the unit into the calibration mode The status indicators poll for

a period of time while the unit calibrates

Card 4 Card four sets the unit into the end routine and saves the calibration setting Card 5 Card five sets the unit’s functionality to the factory default settings

Card 6 Card six enables the unit’s easy (EZ) button This button is used to start the

calibration process This functionality should only be available to personnel responsible for setting up the barcode reader

Card 7 Card seven disables the unit’s easy (EZ) button This button is used to start the

configuration process Selecting this option ensures that the remote barcode reader settings cannot be inadvertently overwritten

Card 8 Card eight, when scanned by the remote barcode reader, provides three test

barcodes to be read and verified

Reader

Configuration This procedure sets up the barcode reader using a set of configuration cards, which have been supplied with the unit If the cards have been misplaced, a

copy of the cards is reproduced at the end of the chapter

NOTE

1 The barcode reader is set up with the DEK software switched OFF.

2 This procedure is used to configure the reader and it works in the majority

of circumstances; however, where complex codes prove difficult to read, adjusting the position of the barcode reader may be of benefit See the section on Complex Codes for details

1 Terminate the DEK software

2 From the Windows desktop select Windows.

3 In the task bar select Start.

process or product description i.e., TEST.

9 Select OK.

10 From the drop down menu select COM6.

READER SET UP

11 In the Port Settings menu set the parameters as shown below

12 Select Apply.

13 Select OK.

System Test The system is set up and ready to be tested Testing consists of configuring,

calibrating, checking functionality and finally checking test codes

1 Using Configuration Code Card number one, place it directly under the barcode reader The reader displays a crosshair which provides a target The barcode on the card should be in the middle of the crosshair

2 Move a spare card or similar object over the trigger sensor to cause it to respond

3 The green LED at the bottom of the barcode reader flashes once

4 Remove card one

5 Continue the configuration by placing configuration card number two under the reader with its barcode in the middle of the crosshair Activate the trigger sensor

6 Remove card two

7 Place card four into position; this saves the calibration settings and ends the configuration routine

8 Remove card four

9 Place the customer product (with barcode uppermost) onto the input veyor ready to be read

con-10 Place card three into position; this card sets the automatic calibration routine This can be carried out manually using the EZ button (see detail

later) Users should be warned that, when activated, this calibration causes the laser light source to flash on and off in a strobe-like manner for several seconds

11 Remove card three to reveal the customer product beneath The barcode reader calibrates the customer product The reader status LEDs poll continuously while the calibration routine takes place This may take several seconds until the flashing lights cease

NOTE

1 Strobing indicates that calibration is taking place.

2 A green light indicates calibration has been successful.

3 If the calibration settings need to be reset to the default settings use card number five.

4 Cards six and seven are used to turn the EZ button ON or OFF respectively The EZ button in the OFF mode prevents operators from manually resetting the parameters or recalibrating the unit.

12 EZ reader option If the EZ button has not been turned OFF (using card six) Press and hold the EZ button for two seconds This switches the reader on and data is output to the Hyper Terminal

13 The unit is now in calibration mode Place the customer product under the reader beam The unit flashes to indicate that it is calibrating; after a few seconds the green LED should come on and calibration stops If you want

to stop calibration use card number four

15 Card eight has the three DEK Test barcodes printed on it Place the card in

Rating = 1561, Focus = 31, Shutter = 2500, gain = 8

Running Fine Tune

READER SET UP

position, with one of the three test barcodes centred in the target crosshair When triggered, the data is read into the Hyper Terminal and each time it is triggered the text below the targeted barcode is displayed on the terminal

16 Repeat this test for the other barcodes; check that the hyper terminal updates with the correct text when the barcode read is triggered

17 Place the product on the input conveyor (with its barcode facing up), near the trigger sensor

18 In one action, move the leading edge of the product over the trigger sensor and onward to rest with its barcode below the barcode reader (centred in the crosshair) This action should trigger a barcode read, a successful read is determined by the correct product identity being displayed on the hyper terminal

19 Close the hyper terminal software

20 In the Windows toolbar, select Start.

21 Select the DEK software from the menu.

22 Press the System button.

Complex Codes For reading complex codes or where a barcode read is particularly problematic,

it may be necessary to position the reader head with better precision

The reader angle from the perpendicular must be approximately

30 degrees and, parallel

to the plane of the