|
|
|
NUL
|
The null character prompts the device to do nothing
|
0000001
|
1
|
1
|
SOH
|
Initiates a header (Start of Heading)
|
0000010
|
2
|
2
|
STX
|
Ends the header and marks the beginning of a message. (Start of text)
|
0000011
|
3
|
3
|
ETX
|
Indicates the end of the message (End of text)
|
0000100
|
4
|
4
|
EOT
|
Marks the end of a completes transmission (End of transmission)
|
0000101
|
5
|
5
|
ENQ
|
A request that requires a response (Enquiry)
|
0000110
|
6
|
6
|
ACK
|
Gives a positive answer to the request (Acknowledge)
|
0000111
|
7
|
7
|
BEL
|
Triggers a beep (Bell)
|
0001000
|
8
|
8
|
BS
|
Lets the cursor move back one step (Backspace)
|
0001001
|
9
|
9
|
TAB (HT)
|
A horizontal tab that moves the cursor within a row to the next predefined position (Horizontal tab)
|
0001010
|
A
|
10
|
LF
|
Causes the cursor to jump to the next line (Line feed)
|
0001011
|
B
|
11
|
VT
|
The vertical tab lets the cursor jump to a predefined line (Vertical tab)
|
0001100
|
C
|
12
|
FF
|
Requests a page break (Form Feed)
|
0001101
|
D
|
13
|
CR
|
Moves the cursor back to the first position of the line (Carriage Return)
|
0001110
|
E
|
14
|
SO
|
Switches to a special presentation (Shift Out)
|
0001111
|
F
|
15
|
SI
|
Switches the display back to the normal state (Shift In)
|
0010000
|
10
|
16
|
DLE
|
Changes the meaning of the following characters (Data Link Escape)
|
0010001
|
11
|
17
|
DC1
|
Control characters assigned depending on the device used (Device Control)
|
0010010
|
12
|
18
|
DC2
|
Control characters assigned depending on the device used (Device Control)
|
0010011
|
13
|
19
|
DC3
|
Control characters assigned depending on the device used (Device Control)
|
0010100
|
14
|
20
|
DC4
|
Control characters assigned depending on the device used (Device Control)
|
0010101
|
15
|
21
|
NAK
|
Negative response to a request (Negative Acknowledge)
|
0010110
|
16
|
22
|
SYN
|
Synchronises a data transfer, even if no signals are transmitted (Synchronous Idle)
|
0010111
|
17
|
23
|
ETB
|
Marks the end of a transmission block (End of Transmission Block)
|
0011000
|
18
|
24
|
CAN
|
Makes it clear that a transmission was faulty and the data must be discarded (Cancel)
|
0011001
|
19
|
25
|
EM
|
Indicates the end of the storage medium (End of Medium)
|
0011010
|
1A
|
26
|
SUB
|
Replacement for a faulty sign (Substitute)
|
0011011
|
1B
|
27
|
ESC
|
Initiates an escape sequence and thus gives the following characters a special meaning (Escape)
|
0011100
|
1C
|
28
|
FS
|
File Separator: marks the separation of logical data blocks (Hierarchy: file > group > record > unit)
|
0011101
|
1D
|
29
|
GS
|
Group Separator: marks the separation of logical data blocks (Hierarchy: file > group > record > unit)
|
0011110
|
1E
|
30
|
RS
|
Record Separator: marks the separation of logical data blocks (Hierarchy: file > group > record > unit)
|
0011111
|
1F
|
31
|
US
|
Unit Separator: marks the separation of logical data blocks (Hierarchy: file > group > record > unit)
|
1111111
|
7F
|
127
|
DEL
|
Deletes a character. Since this control character consists of the same number on all positions, during the typewriter era it was possible to invalidate another character by punching out all the positions (Delete)
|