Microcom LDSII - Manual (Page 88)

Bar Codes Chapter 5
72 LDSII Programming Guide - 880015-0123
ACSII Encoding Scheme
ASCII encoding is the basic scheme that encodes ASCII data, double density numeric data
and symbology control characters. Which means it encodes one alphabetic or two numeric
characters per byte. All other encoding schemes are invoked from ASCII and will then
return to this scheme through the use of code words, refer to Table 9.
C40 Encoding Scheme
C40 encoding scheme is used to encode uppercase alphabetic, numerical and space
characters. C40 encodes three alphanumeric data characters into two bytes.
Text Encoding Scheme
Text encoding is primarily used to encode lowercase alphabetic and numerical characters.
Text encodes three alphanumeric data characters into two bytes.
Base 256 Encoding Scheme
The Base 256 encoding scheme is used to encode any 8-bit byte data, including extended
channel interpret
ations (ECI’s) and binary data.
Codeword Data and/or Function
1 - 128 ASCII data (ASCII value +1)
129 Pad Character
130 - 229 2 digit data 00
– 99 (Numeric Value + 130)
230 Latch to C40 Encoding Scheme
231 Latch to Base256 Encoding Scheme
232 FNC1
233 Structured Append
234 Reader Programming
235 Upper Shift (shift to Extended ASCII)
236 05 Macro
237 06 Macro
239 Latch to Text Encoding Scheme
241 ECI Character
Table 16 ASCII Codeword Values