Table of Contents
Advertisement
Chapter 5. Programming considerations
Ctrl
ASCII Control
Character
(
+
Characters
Meaning
Displayed
Description
Keys
p
DLE
Date Link Escape
D
Changes the meaning of the
L
following characters: EOT,
STX, ETX, DC2, DC4. The
first character of the DLE sequence
Q
DC1
Device Control 1
D
Restarts transmission
1
for pacing
R
DC2
Device Control 2
D
Begins passthrough
2
data stream
(DLE sequence)
S
DC3
Device Control 3
D
Stops transmission for pacing
3
or works as LTA
T
DC4
Device Control 4
D
Terminates passthrough
4
data stream (DLE sequence)
U
NAK
Negative
N
Negative acknowledge
Acknowledge
K
of bad LRC
V
SYN
Synchronous
S
Ignored
Y
W
ETB
End of
E
Ignored
Transmission Block
B
X
CAN
Cancel
C
Ignored
N
Y
EM
End of Medium
E
Ignored
M
Z
SUB
Substitute
S
Ignored
B
3
ESC
Escape
E
Used with other keys to perform
C
specific functions
4
FS
File Separator
F
Ignored
S
5
GS
Group Separator
G
Ignored
S
6
RS
Record Separator
R
In the send/read operation,
S
indicates the end of a line
for turnaround character
character.
7
US
Unit Separator
U
Ignored
S
8
DEL
Delete
~
Ignored
5-12
Advertisement
Chapters
Table of Contents
