Measurement Computing Personal488 rev.3.0 For DOS & Windows 3.Xi - Manual (Page 387)

ASCII Control Codes V. APPENDIX
V-372 Personal488 User’s Manual, Rev. 3.0
ASCII Control Codes (Table 1)
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
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
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
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.