# Scanner Configuration

A scanner is used to read a barcode string or a QR code containing information to choose the appropriate batch sequence.

The scanner is configured in the Sources tab.

The scanner reads the characters you specify and puts them together to form a string of text. This text string is matched to the pre-defined strings you have specified in the controller, and if they match, the batch sequence linked to your pre-defined string is selected.

Barcode strings of a length of up to 1024 characters can be read and they can contain characters in the positions 32-126 in the ASCII table. If the barcode contains a string longer than 1024 characters, the remaining part of the string, from position 1025 and forward, is discarded.

In this Section

- Configuring the Scanner
- Valid Scanners