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2 Line Chart
Log Trend (Pen Recorder): Shows values of device addresses sampled with the Data Log function in a trend chart.
To display multiple items of data, set the sampling conditions and data size for the data to display to the
same settings. The data cannot be displayed if its sampling conditions or data size is different.
The chart can display a maximum of 20 lines.
Device Address Display:
Example: Data Type under Data Format on the Y-Axis tab is "UBIN32(D)" and Reference Device Address
under Data is D100.
The display updates when the value of D100 changes from 0 to 1. The display is erased when the value
changes to 2. The display is first erased and then updated when the value changes to 3. The value of D100
is automatically changes to 0 after updating and clearing the display.
(Start address number) D100-0 value Update
D100-1 value Erase
(Start address number +1) D101 value
Number of device addresses to display values
(Start address number +2) D102 value
The first plotted point
(Start address number +4) D103 value
The second plotted point
(Start address number +6) D104 value
The third plotted point
(Start address number +8) D105 value
The forth plotted point
(Start address number +10) D106 value
The fifth plotted point
If there are many items of data to display, it may take some time to update the display.
11-24
The displayed chart is updated each time the latest data is sampled and the latest data is
always displayed at the right edge. The entire chart shifts to the left point by point and
the display is updated.
Example: Display Points on the X-Axis tab is 5:
Ch1 data
5
Ch2 data
0
120
100
80
60
Display
40
20
0
-20
Opera on
Display point 1
Display the values of multiple, continuous device addresses as a single line chart.
Updating and erasing the display is controlled by the lower 2 bits of the start address
number value (control status). The value of the starting address number is automatically
changes to 0 after updating and clearing the display.
The number of values of device addresses to display is specified by the value of start
address number + 1.
The values of device addresses from start address number + 2 are displayed on the chart.
The data size of the start address number and the start address number + 1 is 16 bits,
and that of the start address number + 2 and later varies based on the data type selected
with Data Format on the Y-Axis tab. For details on data types, refer to Chapter 2 "1.1
Available Data" on page 2-1.
0→1
0
5
10
50
20
60
10
120
120
100
100
80
80
60
60
Display
40
40
20
20
0
0
-20
-20
Update
Operation
Do not erase
WindO/I-NV4 User's Manual
30
80
10
30
120
120
120
100
100
100
80
80
80
60
60
60
40
40
40
20
20
20
0
0
0
-20
-20
-20
Display point 2
Display point 3
Display point 4
0
0→1
0→1
0
5
3
10
70
50
100
20
90
60
110
10
80
120
100
80
60
40
20
0
-20
Update
Update
Erase
Do not erase
Number of display
points changed
90
110
110
40
40
30
120
120
100
100
80
80
60
60
40
40
20
20
0
0
-20
-20
Scroll,
Display point 5
display point 6
0→1
0→1
0
0→1
5
5
10
20
50
80
20
30
60
90
10
20
120
120
100
100
80
80
60
60
40
40
20
20
0
0
-20
-20
Update
Update
Do not erase
Erase
Number of display
points changed
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