Page : 11
7.6.- RECOGNISED CODES - Other codes ignored
ASCII
Decimal
Keyboard
code
code
character
02
02
Ctrl B
STX : Starts the display listening to data. If the instrument has an
address other than 0 the next character must be the address of
the instrument or a 0 or it will return to not listening.
03
03
Ctrl C
ETX : Stops the display from listening to further data (except codes
02, 11, 04, 1B) transfers last string into the display.
Clears the internal buffer.
04
04
Ctrl D
EOT : Switches the display to behave to a sub-set of BS4504.
06
06
ACK : Stars to flash the last character entered at 2 times per second.
Decimal point included.
0C
12
Ctrl L
Causes the display to clear blank. Internal buffer included.
0D
13
Ctrl M
End of data : In shift mode, next valid data will clear or Enter
the display and insert characters into least significant position.
In strobed mode, transfers last string to the display.
11
17
Ctrl Q
XON : Same as STX.
12
18
Ctrl R
DC2 : Sets the display to 25 % brightness.
13
19
Ctrl S
XOFF : Same as ETX but does not transfer last string into the
display.
14
20
Ctrl T
DC4 : Sets the display to 100 % brightness.(Normal).
18
24
Ctrl X
CAN : Sets the display to 50 % brightness.
1B
27
Esc
Resets display to its power-on condition.
20
32
Space
Inserts a space.
2B
43
+
Inserts a space.
2D
45
-
Inserts a "-"
2E
46
.
Adds a decimal point to the last character entered.
30-5F
48-95
Inserts characters shown in Table of Characters.
In shifted mode the character is entered in the least significant place
and all characters are shifted to the left (from LSB to MSB).
The character number 7 (from LSB) is lost (polarity and overrange),
the character number 6 (MSB) takes the polarity place. It is valid also
for the instruments with four digits because the polarity remains in 7th
position and characters 5th & 6th will not be displayed.
In strobed mode the data is placed in a register rather than the display.
Action