Microcom LDSII User Manual
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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