Entering Ascii Control Characters - Intermec Janus 2020 User Manual

This appendix includes reference tables you can use when configuring
communications protocols and the key code look-up table on the reader. It also
contains a full ASCII chart and charts of Code 39 bar code labels that you can scan
with the JANUS 2020 reader.

Entering ASCII Control Characters

You may need to enter ASCII control characters to configure these parameters
in IC.EXE or the Communications Manager screens:
• Preambles and postambles. You can include ASCII control characters in
• Protocol characters, such as EOR and EOM. For some communications
To enter ASCII control characters for preambles and postambles
1. Decide which ASCII control character you want to set for the preamble or
2. Use IC.EXE to configure a preamble or postamble. Move the cursor to the
NF
postambles and preambles.
protocols, you must set the protocol character to an ASCII control character.
postamble. Use the next table to find the character and the escape sequence.
ASCII Control Character
\ Backslash
BEL Bell
BS Backspace
CR Carriage Return
FF Form Feed
HT Horizontal Tab
LF Line Feed
Other ASCII control characters
If the table does not include the ASCII control character, you must use the
Full ASCII Table later in this appendix to identify the two-digit
hexadecimal number for the control character.
field for the preamble or postamble. For help using IC.EXE, see Chapter 5,
"Configuring the Reader."
BC
Configuration and Full ASCII Charts
Escape Sequence
\\
\a
\b
\r
\f
\t
\n
\xhh where hh is the two-digit hexadecimal
number for the ASCII control
character.
C
C-3