Boundless Technologies ADDS 3153 ASCII - Manual (Page 26)

Communications 13
The figure below represents the entire page memory of a 48 line page (24 base page
length times a multiplier of 2) and the portion of the page that is viewable on the
display screen, when “26 Lines” is selected. Notice that the label line is visible in this
mode.
Visual Effects of Screen and Page Lengths
The combination of page and screen lengths influence the number of displayable data
lines. For example, if the page length is “50” (25 x 2), and the screen length is 44
lines, the number of data lines that are visible at any one time is 43, with no label line.
The other line is used for the top status line. On a 52 line screen, 50 of the 52 data lines
are visible at one time, in single session mode.
If the page length is shorter than the screen length, then blank lines will be present
below the data line or status/label line. If the page length is larger than the allowable
number of data lines, this will cause some of the rows to be out of view. In order to
bring them into view, “scrolling” or “panning” is used, as necessary.
Scrolling causes a new line to scroll into view when the cursor advances past the last
row or first row on the page. If the cursor moves past the last row, the top row of text
is lost, and past the first row, the bottom row of text is lost (if Auto Scroll is “on” in
Setup). Text scrolled off of the screen is not recoverable.