User manual

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37. APPENDIX A – SETTING A BARCODE SCANNER
1. RADWAG scales use RS232 interface with transmission in one
direction to communicate with a barcode scanner. It requires only two
wire connection. So barcode scanners needs to be equipped with
RS232 with disabled hardware and software flow control.
2. Both the terminal and a scanner can have transmission parameters
set. Both devices should have set the same parameters: baud rate,
data bits, parity control, number of stop bits. e.g. 9600,8,N,1 – baud
rate 9600 bit/s , 8 - data bits, no parity control, 1 stop bit. By default in
PUE5 barcode scanner needs to be connected to COM3 – with baud
rate 9600 bit/s.
3. Barcode scanners can send additional information apart from a
barcode e.g. barcode symbology. As RADWAG devices do not use
this information it is advisable to disable it.
4. Some RADWAG systems can omitted some inessential information
in the code by setting parameters outlining the beginning and length
of the analyzed code.
5. In order to have a barcode read by PUE5 it is required to program an
appropriate prefix and suffix. The prefix is (1 byte) 01 hexadecimally
and the suffix is (1 byte) 0D hexadecimally.
6. Different barcode scanners allow to disable/enable reading different
barcode symbologies.
7. Barcode scanners can be programmed by reading different
programming codes present in their programming manuals.
8. Barcode scanners bought together with RADWAG systems are
properly configured and tested.
Barcode coded hexadecimally with prefix
and suffix
Barcode in ASCII code
(omitted control
characters)
Symbology
01 30 30 32 31 30 31 32 36 0D 00210126 EAN-8
01 30 31 32 33 34 35 36 37 38 39 0D 0123456789 2 of 5
01 43 4F 44 45 20 33 39 20 54 45 53 54 0D CODE 39 TEST CODE 39
01 31 31 30 31 32 33 34 35 36 37 38 39 31 0D 1101234567891 EAN-13
01 43 6F 64 65 20 31 32 38 20 54 65 73 74 0D CODE 128 Test CODE 128