Omron NT620C, Operation Manual

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4-5 Section Graphs
142
Separate background color can be specified for positive and negative value
display area.
•
Displaying method
A graph displaying method can be selected out of two types: normal type and
pen recorder type.
- Normal type
As time goes by, the latest data display position moves toward the direction of
increase. When the displacement increases to the right, a graph varies as
shown below. When a polygonal line reaches the end of a screen, it is
cleared once and the NT610C starts drawing a polygonal line again from the
first.
At the second time and
thereafter, the NT620S/
620C draws a graph from
the last data to the latest
data.
Direction of increase : Latest data
At first the
NT620S/620C draws
a graph from 0 to the
latest data.
: Latest data : Latest data : Latest data : Latest data
- Pen recorder type
The latest data is always displayed at the end of the screen. As time goes by,
the graph already displayed moves in the direction of increase. When a
graph increases to the right, it varies as shown in the figure below.
Data is cleared
from old one.
Direction of increase : Latest data
At first the NT610C
draws a graph from
0 to the latest data.
: Latest data : Latest data : Latest data : Latest data
•
Direction of movement
The normal type can select the direction that the display position of the latest
data moves with the lapse of time. The pen recorder type can select the direc-
tion that entire graph moves.
Downward Rightward Upward Leftward
100% 100%
100%
100%
100% position is determined in accordance with the direction of scroll. 100%
position falls to the right when a graph scrolls longitudinally and at the upper
side when a graph scrolls laterally.
•
Sign representation
This attribute can specify whether or not a numeric value less than 0% value is
displayed.
[To display a value below 0%: Sign display “Yes”]