RADWAG UYA 4Y, User Manual

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46. APPENDIX E – COMMUNICATION WITH BARCODE SCANNER
1. For communication with barcode scanners RADWAG balances 4Y series use RS232
interfaces and simplex transmission (one direction) without handshaking. Only two wires
are required for assuring such a transmission. Therefore, used scanners have to be
equipped with such interface with disabled both hardware and software handshaking.
2.
Both balances and scanners have the possibility of setting of transmission parameters.
Both devices are required to have the same parameters set : baud rate, number of data
bits, parity control, stop bits. e.g. 9600,8,N,1 – baud rate 9600 bit/s , data 8-bits, no parity
control, 1 stop bit.
3.
Barcode scanners can send additional information apart from the expected barcode e.g.
type of barcode. It is advisable to disable such information because RADWAG devices
and software do not use it.
4.
Some RADWAG systems can omit unnecessary information by using parameters that
mark the beginning and the length of the code required to analyse.
5.
Should a barcode be recognized by a balance, it needs to have some particular
features. A code requires programming a characteristics prefix and suffix. In a standard
accepted by RADWAG, a prefix is a sign (byte) 01 hexadecimal and a suffix is a sign
(byte) 0D hexadecimal.
6.
Most barcode scanners allow to enable/disable different barcode types.
7.
Programming of scanners is usually performed by scanning special barcodes or by
using an external software tool.
Barcode with required prefix and
suffix in hexadecimal format
Barcode without
required –fixes in
ASCII format
Code type
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 KOD 2 Z 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
47. APPENDIX F – MENU STRUCTURE
User adjustment
Description Value
Internal adjustment Function
External adjustment Function
User adjustment Function
Adjustment test Function
Automatic adjustment time 1 - 12