I have installed the Sepasoft Barcode Scanner module in Vision for an application. I need to configure it so that the scanned data can be retrieved without requiring the user to manually focus on the input field.
I have successfully tested this with a Newland scanner using a prefix (preamble: \u0021) and it worked well. However, the customer wants to use various scanners like Zebra, Honeywell, and Rugtec, with barcodes containing only text and no prefix or suffix.
I am not very familiar with preambles, postambles, or separators. Leaving these fields empty causes an error. What should I use for the preamble to ensure that any scanner can be used to scan the barcodes successfully?
How will the module know, when to start capturing the input, if there is no prefix?
In every barcode scanner I've used, I've set the prefix in the config tool for that scanner and used that in the Barcode Scanner Module for preamble...
As noted, with no prefix or suffix, there's no way to handle such scanners with generic keyboard-based methods.
Since you are using Vision, you have to option to set up a local serial port for a scanner, and run a background jython task to monitor it for scans. Such a task can handle any kind of input, and deliver the scans unambiguously to Vision Client tags.
No. This component monitors all keyboard input and must have a preamble (prefix) so it knows when to start buffering input as a scan versus someone typing. I recommend using a suffix as well.
You typically would write the task in the project library, and start it with a client startup event. It would be entirely independent of the Sepasoft component.
