Omega Vehicle Security OMB-CHARTSCAN 1400 User Manual

Page of 273
ASCII Code Summary
Appendix F
ChartScan User’s Manual
F-3
ASCII Code Details
Decimal Values 00 to 31 – ACG & UCG Characteristics
ASCII Control Codes (Decimal 00 to 31)
Dec
Value
Hex
Value
($ or &H)
Character
and
Abbreviation
Name
Bus Message
Addressed Command Group (
ACG
)
00
00
None / NUL
Null
None
01
01
^A / SOH
Start of Header
Go To Local (
GTL
)
02
02
^B / STX
Start of Text
None
03
03
^C / ETX
End of Text
None
04
04
^D / EOT
End of Transmission
Selected Device Clear (
SDC
)
05
05
^E / ENQ
Inquiry
None
06
06
^F / ACK
Acknowledgement
None
07
07
^G / BEL
Bell
Parallel Poll Disable (
PPD
)
08
08
^H / BS
Backspace
Group Execute Trigger (
GET
)
09
09
^I / HT
Horizontal Tab
Take Control (
TCT
)
10
0A
^J / LF
Line Feed
None
11
0B
^K / VT
Vertical Tab
None
12
0C
^L / FF
Form Feed
None
13
0D
^M / CR
Carriage Return
None
14
0E
^N / SO
Shift Out
None
15
0F
^O / SI
Shift In
None
Universal Command Group (
UCG
)
16
10
^P / DLE
Data Link Escape
None
17
11
^Q / DC1
Device Control 1
Local Lockout (
LLO
)
18
12
^R / DC2
Device Control 2
None
19
13
^S / DC3
Device Control 3
None
20
14
^T / DC4
Device Control 4
Device Clear (
DCL
)
21
15
^U / NAK
Negative Acknowledgement
Parallel Poll Unconfig (
PPU
)
22
16
^V / SYN
Synchronous Idle
None
23
17
^W / ETB
End of Transmission Block
None
24
18
^X / CAN
Cancel
Serial Poll Enable (
SPE
)
25
19
^Y / EM
End of Medium
Serial Poll Disable (
SPD
)
26
1A
^Z / SUB
Substitute
None
27
1B
^[ / ESC
Escape
None
28
1C
^\ / FS
File Separator
None
29
1D
^] / GS
Group Separator
None
30
1E
^^ / RS
Record Separator
None
31
1F
^_ / US
Unit Separator
None
Notes:
•  ASCII control codes are sometimes used to “formalize” a communications session between
communication devices.
• 
DC1, DC2, DC3, DC4, FS, GS, RS,
 and 
US
 all have user-defined meanings, and may vary in
use between sessions or devices.
• 
DC4
 is often used as a general “stop transmission character.”
•  Codes used to control cursor position may be used to control print devices, and move the print
head accordingly.  However, not all devices support the full set of positioning codes.