Omron NT21 Reference Manual page 183

Graphs
Reference: If a small value is set for Interval Type, even if broken line, 1-dot chain line, or
*2: The –100% value, 0% value, and 100% value must comply with the following
relationship:
–100% value < 0% value < 100% value
When a table entry is specified for the % value, the relationship above will not be
satisfied if the contents of the specified numeral memory table entry are
incorrect. In this case, the graph won't be refreshed even if the values displayed
on the graph are changed.
The line thickness for broken line graphs is fixed as 1 dot.
2-dot chain line is specified the line will appear to be a solid line.
Resulting Display
When No Check Mark Is Set for display Sign
Position
(Top left corner of the rectangular area including the graph)
Size
(Y direction)
Negative values
are not displayed.
When a Check Mark Is Set for Display Sign
In this case, the center of the graph is always the 0% position, regardless of the
settings made for 100%, 0%, and –100%.
Size
(Y direction)
Negative values
are displayed.
Direction of Broken Line Graphs
The directions of broken line graphs depending on the setting made for Direction
are shown below. The direction of a broken line graph means the direction in
which the values in numeral memory table entries are plotted, starting from the
numeral memory table entry with the smallest table entry number and proceed-
ing through progressively larger table entry numbers.
Frame color
100% position
Display color for the + range
Line (color, style)
0% position
Size
(X direction)
Position
(Top left corner of the rectangular area including the graph)
Frame color
Size (X direction)
Section 2-10
100% position
Display color of + range
Line (color, type)
0% position
Display color of – range
–100% position
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