Omron NT620C, Operation Manual

Page: 155 / 337

4-5 Section Graphs
143
The trend graph is displayed in the range of –100% to 100%. In this case, 0%
position of a graph falls the center of a graph display area.
100%
–100%
10 0%
the latest data: –50%
the latest data: 80%
[Not to display a value below 0%: Sign display “No”]
The trend graph is displayed in the range of 0% to 100%. 0% position is at the
end of a graph. All values less than 0% are displayed as 0%.
100%
10 0%
the latest data: 80%
the latest data: –120%
•
Drawing width
Drawing width (direction of increase) must be specified from the previous data
to the following data in the range of 1 to 640 dots. If a value more than the graph
displaying frame is specified, a graph will not be displayed.
Direction of increase
Drawing width
•
Sampling period
Sampling period is the time interval applied when the NT610C samples and
displays the Numeral Memory Table value and is specified in the range of 1 to
65535 in increments of 0.1 second.
Reference Actual drawing timing varies depending on the operating conditions. This does
not accurately coincide with the time interval specified.
•
% Data value
The same is also true as the bar graph. Refer to page 139.
•
Graph line type
This attribute specifies a graph line type among those as shown below. A
graph width is fixed at one dot. Line color can be selected out of eight colors.
Solid line
Broken line
1-dot chain line
2-dot chain line