
Graphic Operation Terminal GOT-F900 Creation of Display Screen (GT Designer) 20
20-30
20.8.2 Trend graph
The "Trend" object acquires the current values of up to four 16-bit data registers in the PLC at
a specified time interval, and displays the acquired data in the form of line graph.
(Unavailable in the F920GOT-K.)
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Contents of setting
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Display example
• Word devices D100 and D101 are acquired every 3 seconds, and displayed in the form of
line graph.
• If the acquired data is smaller than the minimum value (0) or larger than the maximum value
(1000), it is not displayed in the graph and the graph is discontinued.
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Important point
Sampling time
It is recommended to set the sampling time to 1 second or more.
In the sampling cycle, the GOT reads the bit device set in “Clear Trigger”.
Set the bit device in “Clear Trigger” be ON and OFF in a longer period than the sampling cycle.
Attribute Contents of setting
Display direction Right or left
Number of lines 1 to 4
Number of points 1 to 50
Monitored devices 16-bit or 32-bit word devices
Line type
Color Graph color, frame color, scale color
Display condition Constant cycle (which can be set arbitrarily in the unit of 100 ms)
, , , ,
"Trend Graph" ob
ect
6
5
4
3
2
1
0
612345 789
No. 2
D101
When the acquired data is smaller
than the minimum value
or lar
er than the maximum value
No.1
D100
Word Device
Displ a
condition
Ticks Horizontal
Ticks Vertical
Mini mum Val ue
Maximum Val ue
Scale Color: Black
Continuous Red
D100
30
10
7
0
1000
Dotted Blue
None
None
Shown Device
No. 2
No. 3
No. 4
No. 1
"Text" ob
ect
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