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10
SOFTWARE COMMANDS
Logic Controls pole displays are controlled by command codes and
data from the computer. The model of pole display that you have will
determine which command set works with your pole. Refer to the
model identification chart for further information.
Commands are transmitted to the pole display as ASCII codes. The
command codes listed below are expressed in hexadecimal (base 16)
numbers enclosed inside angle brackets < >, in decimal numbers
enclosed in parenthesis ( ), and in ASCII characters enclosed in curly
brackets { }. Do not include the brackets as part of the command. ‘ ^ ‘
character denotes ‘Ctrl’ in the keyboard. Press and hold ‘Ctrl’, then
press the next key.
LOGIC CONTROLS COMMAND SET (LD9000, LD9000-X):
1. Vertical Scroll Mode <12>, (18), {^R}:
Data is written into the second row and transferred to the first row
when carriage return is received, leaving the second row empty.
2. Normal Display Mode <11>, (17), {^Q}:
Data can be written into either row. Moves to the left most digit of
the other row when line is full.
3. Brightness Control <04>, (04), {^D}:
The brightness of the display can be adjusted using this
command followed by a data byte <FF>, <60>, <40> or <20>.
4. Back Space <08>, (08), {^H}:
The cursor position moves one digit to the left erasing the
previous information.
5. Horizontal Tab <09>, (09), {^I}:
The cursor position shifts one digit to the right without erasing
character at original cursor position.
6. Line Feed <0A>, (10), {^J}:
The cursor position moves to the same position in the other row.
In vertical scroll mode, if cursor was in second row, the cursor will
not move and display will scroll up.