EAN13

[Alfirus Ahmad]

Hello,

I want to use Unicenta, however I'm facing problem with weight scale barcode using EAN13. The barcode structure as below

24 00412 02550 5

DD SSSSS PPPPP C

D = Department (weight product)
S = SKU
P = Price
C = Checksum

I have very limit knowledge in Java and tried to edit 'JPanelTicketSales.java' and tried to build it. However failed because there is a lot of error in source 'uniCentaoPOS_381_source'

Can anyone help me to solve this problem and how much the cost?

[C n' C Comics]

US a bar code generator such as Zint to get the check-sum, just type in the first 12 digits and it will gen the check-sum for you, also, that is a rather unusual use of EAN bar-coding, usually it is

UUCCCCCPPPPPS

U - Country
C - Company's/manufacture code
P - Product Code
S - Check-sum

[Marty C]

Hi Alfrius,

EAN 13 price variable barcodes should just work out of the box without any Java editing. Here's a real world example of one I use:

Barcode Format: 210SSSSPPPPPC

2105013002985 - (so SKU of 5013 and price of £2.98 in this example).
In the product details on Unicenta, the barcode field is set to 2105013

It's a while since I looked at it, but I think all price variable barcodes need to start with either 210 or 220 (someone may correct me on that though). If you already have a load of products programmed in on your scales with 240, then you may need to do some code editing. It would probably be preferable to re-program your scales though so you don't have to mess about changing the code with every new version of Unicenta.

[Alfirus Ahmad]

i'll give a test using "210" for weight scales items. I never know it's already in the box because no documentation about that i can find.

[Marty C]

To avoid confusion, the above was true but only because I was using an old version of Unicenta (3.55).

I finally got around to upgrading yesterday and it broke all my variable price barcodes. It seems there is a bug with recent versions regarding variable barcodes.

This is covered in the following thread:
https://sourceforge.net/p/unicentaopos/discussion/1126900/thread/d3eac659/?limit=25&page=2
After a bit of fiddling around I got it back up and working. Following the post by 'gkaigk' did the trick.

[krulleke]

Both Alfirus and CnC Comics are right

the build of a EAN13 barcode is like this
UUCCCCCPPPPPS

U - Country
C - Company's/manufacture code
P - Product Code
S - Check-sum

but keep in mind that the bar code range starting with a 2 is excluded from this

then it is like this

24 00412 02550 5DD SSSSS PPPPP C

D = Department (weight product)
S = SKU
P = Price
C = Checksum

if you read the sources

if(sVariableTypePrefix.equals("20")) {
  dPriceSell = Double.parseDouble(sVariableNum) / 100; // price with two decimals
} 
else if (sVariableTypePrefix.equals("21")) {
 dPriceSell = Double.parseDouble(sVariableNum) / 10; //price with one decimal
} 
else if (sVariableTypePrefix.equals("22")) {
  dPriceSell = Double.parseDouble(sVariableNum); //price with no decimals
} 
else if (sVariableTypePrefix.equals("23")) {
  weight = Double.parseDouble(sVariableNum) / 1000; //weight in kg with three decimals (eg. 1,234 kg)
} 
else if (sVariableTypePrefix.equals("24")) {
   weight = Double.parseDouble(sVariableNum) / 100; //weight in kg with two decimals (eg. 12,34 kg)
} 
else if (sVariableTypePrefix.equals("25")) {
   weight = Double.parseDouble(sVariableNum) / 10; //weight in kg with one decimal (eg. 123,4 kg)
} 
else if(sVariableTypePrefix.equals("28")) {
   sVariableNum = sCode.substring(7, 12);
   dPriceSell = Double.parseDouble(sVariableNum) / 100; // price with two decimals
}

Pepsi

[uniCenta]

Pepsi

Absolutley right!

Thanks for that.

Barcode confusion reigns supreme!

Don't forget too that some countries have been assigned GS1 3 digit country codes. We recently had a 3 digit country code of 611 (Morocco) and these need to be taken into account.

uniCenta oPOS allows for 20 through to 28 for own in-house bar codes to include weight/price -per GS standards.

Jack
Founder uniCenta

[fakruddin ali ahemed]

dear uniCenta,
this is the first time I am trying to use your POS.
it was really impressive but I had a serious requirement of a printed barcode with a product code and variable weights.
I build EAN13 barcode is like this
UUCCCCCPPPPPS = 23cccccvvvvvs I tried all possible versions and jhon L version also but still pos says "product code doesn't exists"
please help me!

[uniCenta]

fakruddin ali ahemed

If you don't construct a proper EAN-13 barcode (we don't make the rules) you will succeed; research GS1....

Jack
Founder uniCenta

[Raj]

Thanks, @krulleke it workes good.
But my requirement bit different.

Barcode
DD SSSSS PPPPP C
20 00001 00150 9

When I am read with pos (v4.3.2) it shows me like below image.

Price value is a perfect take, I don't want to change.
Here I want to units x1 instead of x0.015.
How can I do?

[RickyO]

It's taking the Product price inc' you entered in the STOCK > PRODUCTS > GENERAL (tab), compared to the product cost on the barcode, and doing the reverse math to calculate the units (weight).

[Jonniher Martinez]

I have tried, but I have not been able to implement the scale printer in any way.