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Ascii reference, Appendix, Ascii control codes – Rockwell Automation GMLC Reference Manual User Manual

Page 926

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Publication GMLC-5.2 - November 1999

Appendix

C

ASCII Reference

The following tables are provided as a reference for GML Commander
blocks that require ASCII code or characters. The character codes, code
values, and descriptions are defined by the American National Standards
Institute (ANSI) as the American Standard Code for Information
Interchange (ASCII). For more information, see ANSI Standard X3.4-
1977.

ASCII Control Codes

!

ATTENTION: Although code values are displayed as both
decimal and hexadecimal (hex) numbers, always use the
decimal value in GML Commander.

ASCII

Keyboard

Decimal

Hex

Description

NUL
SOH
STX
ETX
EOT
ENQ
ACK
BEL
BS
HT
LF
VT
FF
CR
SO
SI
DLE
DC1

CTRL-@
CTRL-a
CTRL-b
CTRL-c
CTRL-d
CTRL-e
CTRL-f
CTRL-g
CTRL-h
CTRL-i
CTRL-j
CTRL-k
CTRL-l
CTRL-m
CTRL-n
CTRL-o
CTRL-p
CTRL-q

0
1
2
3
4
5
6
7
8
9

10
11
12
13
14
15
16
17

00
01
02
03
04
05
06
07
08
09

0A
0B
0C
0D

0E
0F
10
11

Null
Start of heading
Start of text
End of text
End of transmission
Enquiry
Acknowledge
Bell
Backspace
Horizontal tab
Line feed
Vertical tab
Form feed
Carriage return
Shift out
Shift in
Data link escape
Device control 1