Communications Manual D900
49-MD900EN05
120
5.7. SCALES WITH SCANNER CONNECTION
The D900 scales can communicate with a scanner for reading bar codes, so that the article bar codes are
read and sales operations carried out on the scale.
The scanner must have the requirement COMMUNICATION SERIES RS-232 through a DB9 female
connector.
The scale RS-232 connector has power output for the scanner. The DB9 powered PIN is PIN 9.
The scale software is set up with the following protocol for the scanner:
Speed: 9600 bauds
8 data bits
Without parity
The scanner must send the bar code followed by CR or LF.
5.7.1.Scanner Installation
The scanner is connected taking into account that the RS-232 connector of the scale supplies 5VDC
5.7.2.Scanner Barcode reading
All the articles will have a field called EAN in which the EAN scanner code can be entered for the
particular article. In the said field, representative numbers and letters can appear within the bar code. This
field is for the exclusive use of the scanner. In it, you can enter:
13 characters, then becoming an EAN 13
8 characters followed by spaces to form an EAN 8
To program the article’s EAN code, enter the PLU programming option. When you reach the EAN field,
enter the EAN code you require. To do so, you can:
Read the bar code with the scanner and the value will be updated.
Enter it manually, allowing to this end the representative numbers and letters within the bar code.
Remember that depending on whether there are 13 or 8 characters in this field, you will have an EAN 13
or an EAN 8 respectively.
Remember that the last character of the bar code is the checksum, which is why, if you do not wish to, it is
not necessary to enter it. Therefore, you will need 12 or 7 digits for each EAN (the last character is omitted).
In normal working position, when a bar code is read by a scanner, a search is made through all articles. In
the case of finding an article whose EAN code corresponds, the information on this article will show up on
the screen, just as if you had pressed the key corresponding to its PLU. In the case of not finding any
article meeting this condition, wrong code message will appear.
If there is no scanner and you wish to make the search with the aid of the EAN scanner code, you can
press the key
and the scale will show the menu to enter the barcode:
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