27 U02124ML-01-UK
Note that data strings terminated by carriage return should not be used, as
carriage return followed by ETX will result in a blank display.
See below for details.
The display is a receiver only and provides no response or talkback
The block check characters (error detection) are not used and all alpha
characters following STX are treated as printable characters. These will
appear on the display if operating in MODE 0. In MODE 1 they will display
only if places within the final six positions of the character string.
Group and ID numbers 11 to 19 can be used as follows:
Address DIP Switches Displayed
Character
(G) (ID) 1 2 3 4
1 1 1 0 0 0 1
1 2 0 1 0 0 2
1 3 1 1 0 0 3
1 4 0 0 1 0 4
1 5 1 1 1 0 5
1 6 0 1 1 0 6
1 7 1 0 0 0 7
1 8 0 1 0 1 8
1 9 1 1 0 1 9
Table. 2 BS4505-Equivalent addresses
To exit B55404 protocol and return to normal operation requires either a
power-on reset or an ASCII 1B (ESC) character.
BRIGHTNESS CONTROL
The reception of DC2 (Ctrl R), DC4 (Ctrl T) or CAN (Ctrl X) now enable the
display brightness to be controlled over the serial data line. See Table. 1 for
details.
ETX (CONTROL C)
The character ETX (Ctrl C) is now equivalent to a carriage return followed by
XOFF.
Thus a data string terminated with a carriage return will result in a blank
display upon receipt of the ETX character.
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