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9.Command details
9.1 Overwrite mode
In this mode, the cursor will move rightward and begin from the upper left-end position. When the
cursor reached the end of the upper line, the cursor will move down to the bottom left-end position to
continue. When the cursor reached the end of the bottom line, it will move up the upper left-end
position and overwrite the previous characters.
9.2 Vertical scroll mode
In this mode, the cursor will move rightward. The cursor will begin from the upper left-end position until
it reached the end of the upper line, the cursor will then move down to the bottom left-end position to
continue until it reached the end of the bottom line.
9.3 Horizontal scroll mode
In this mode, the extend of the cursor activity is bond by predefined range, limited to the upper
line.(Please refer to Set or cancel window command), where the default window is the whole upper
line. The cursor will begin from the left-end of the range and move rightward until it reached the end
of the range, to continue, the characters that comes thereafter will start pushing the previous
characters leftward from the right-end, scrolling the characters to the left.
9.4 Set the string display mode, and write string to display
Set the string display mode, write to upper or lower line d1 d2 d3 ….. dn {1n20} ‘A’ stands for
the upper line, ‘B’ stands for the lower line, The string display mode will be cancelled and back to
last mode after receive CLR or CAN
9.5 Upper line message scroll continuously
The message (previously defined) will scroll continuously in the horizontal direction until a new
command is received.9.6 Move cursor left When the current cursor is at the left-end position, this
command operates differently depends on the display mode. Overwrite mode: When the cursor
reached the
left-end of the lower line , it will continue to the right-end of the upper line, overwrite previous characters.
When it reached the left end of the upper line, it will continue to the right-end of the lower line.
Vertical scroll mode: When the cursor reached the left-end of the lower line, the lower line will scroll up
and replace the previous upper line, the lower line will be cleared and the cursor will continue to the right
end of the lower line. Horizontal scroll mode: The cursor will remain stationary.
9.7 Move cursor right
Move the cursor to the right. When the cursor reached the right-end, this command operates differently
depending on the display mode. Overwrite mode: When the cursor reached the right-end of the lower
line, it will continue to the left-end of the upper line, overwrite previous characters. When it reached the
right-end of the upper line, it will continue to the right-end of the lower line. Vertical scroll mode: When
the cursor reached the right-end of the lower line, the lower line will scroll up to replace the upper line,
the lower line is cleared and ready to continue characters there after. Horizontal scroll mode: The cursor
will remain stationary.