96
Trend Screens
Section 4-9
Function block PV, SP, MV, and analog signals output from the Send Terminal
to Computer function block are collected in fixed cycles, the trend displayed,
and simultaneously stored in a file.
Trends are displayed as multi-dot recorder screen images to a maximum of
eight dots per screen.
The following two Trend Screens are supported.
The data collection cycle is set on the System Info Screen. For details on the
data collection cycle, refer to
5-6-9 CSV File Auto-save Settings
.
Note
Depending on the number of combined function blocks and the model of Loop
Controller that is connected, it may not be possible to collect the data within
the collection cycle that is set.
If the data is displayed on a graph under these conditions, the data will be
updated with the same values as for the previous collection. To remedy this
situation, take measures such as lengthening the collection cycle interval.
You can register a maximum of 60 Realtime Trend Screens, or 120 Historical
Trend Screens.
Set either Realtime Trend or Historical Trend when configuring the screen.
Regardless of the trend, trend data collection itself starts at the same time as
the monitor process is started (using the
Run
Button in the Main Window).
• Click the
Start Time
Button in the lower left of the screen to set the time
from which data will be displayed.
• Click the Maximum Display Time Button to set the maximum width of the
time axis displayed on the screen.
• To zoom in on the scale displayed, click the
Scale
Button and change the
setting.
• To add bias to the display, click the
Bias
Button and change the setting.
• Use the
Select Pen
Button to select the pen you want to display.
Item
Type
Realtime Trend
Historical Trend
Data collection
(logger function)
Collection cycle
1, 2, 5, 10, or 30 s
1, 5, 10, 30, or 60 min
Tags
480 max.
960 max.
Maximum save
time
Collection cycle
1 s: 10 h
2 s: 20 h
5 s: 50 h
10 s: 100 h
30 s: 300 h
Collection cycle
1 min: 30 days
5 min: 150 days
10 min: 300 days
30 min: 900 days
60 min: 1,800 days
Data display
Horizontal axis
Collection cycle
1 s: 2 min to 240 min
2 s: 4 min to 240 min
5 s: 10 min to 240 min
10 s: 20 min to 240 min
30 s: 20 min to 240 min
Collection cycle
1 min: 2 h to 10 days
5 min: 10 h to 50 days
10 min: 20 h to 100 days
30 min: 60 h to 300 days
60 min: 5 days to 600 days
Vertical axis
One axis for all 8 points. Scale can be magnified by 1
×
, 2
×
, 5
×
, or 10
×
.
Display start
time
Specify the display start time to display data from that point in time.
Display colors
Red, yellow, green, blue, magenta, purple, cyan, and white
Summary of Contents for CX-Process Monitor Plus 2
Page 1: ...CX Process Monitor Plus Ver 2 Cat No W428 E1 02 SYSMAC WS02 LCMC1 EV2 OPERATION MANUAL...
Page 2: ...WS02 LCMC1 EV2 CX Process Monitor Plus Ver 2 Operation Manual Revised January 2007...
Page 3: ...iv...
Page 5: ...vi...
Page 9: ...x...
Page 15: ...xvi Application Precautions 4...
Page 41: ...26 Basic Operating Procedure Section 1 2...
Page 243: ...228 Checking Configurations Section 5 7...
Page 267: ...252 Reading Writing Function Block ITEMs Appendix A...
Page 269: ...254 Differences between Trend Screens and Batch Trend Screens Appendix B...