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Command Details
A.1. Overwrite mode
In this mode, the cursor will move towards the right and begin from the upper left position.
When the cursor has reached the end of the upper line, the cursor will move down to the
bottom left position to continue. When the cursor has reached the end of the bottom line,
it will move to up the upper left position and overwrite the previous characters.
A.2. Vertical scroll mode
In this mode, the cursor will move towards the right. The cursor will begin from the upper
left position until it has reached the end of the upper line. The cursor will then move down
to the bottom left position to continue until it has reached the end of the bottom line.
A.3. Horizontal scroll mode
In this mode, the extent of the cursor activity is bound by a 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.
A.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 {1
≦
n
≦
20}. ‘A’
stands for the upper line, ‘B’ stands for the lower line. The string display mode will be
cancelled and the display will return to the previous mode after receiving CLR or CAN.
A.5. Upper line message continuous scroll
The message (previously defined) will scroll continuously in the horizontal direction until
a new command is received.
A.6. Move cursor left
When the current cursor is at the left-end position, this command operates differently
depending 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.
