464
Temperature Input Unit Functions
Section 11-5
11-5-6 Rate of Change Calculation
The rate of change can be obtained for each sampling cycle set for the tem-
perature input data. This function calculates the difference between the cur-
rent sampling cycle the previous cycle. The sampling cycle can be set to
between 250 ms and 65,500 ms in 250-ms increments. The default setting for
the sampling cycle is 250 ms.
Note
If the sampling cycle is set to a small value, the rate of change will be sensitive
to small changes. If the temperature data is subject to minute fluctuations, and
the sampling cycle is shorter than the cycle of fluctuation, the fluctuation will
be regarded as the rate of change. To prevent this occurring, use moving
average processing, which will set a longer sampling cycle.
Setting Using CX-Integrator
1,2,3...
1.
Turn ON the power supply to the Temperature Input Unit.
2.
Double-click the icon of the Temperature Input Unit to be set in the Network
Configuration Window or right-click the icon and select
Parameter - Edit
.
The Configuration Window will be displayed.
3.
Click the tab for the input where rate of change is to be calculated, and se-
lect the
Rate of Change
Check Box in the
Function Choice
Area.
0
Temperature
input value
Rate of
change
Derivative data
Temperature data
Time
Fluctuation in the
temperature input value
Short sampling cycle
Desired gradient
Long sampling cycle
Summary of Contents for CRT1 - 10-2008
Page 2: ...CRT1 Series CompoNet Slave Units and Repeater Unit Operation Manual Revised October 2008...
Page 3: ...iv...
Page 5: ...vi...
Page 9: ...x...
Page 15: ...xvi...
Page 23: ...xxiv Conformance to EC Directives 6...
Page 51: ...28 Slave Unit Models Section 1 2...
Page 123: ...100 Connecting External I O for Slave Units Section 3 6...
Page 365: ...342 Temperature Input Units Section 7 5...
Page 381: ...358 Expansion Unit Specifications Section 8 2...
Page 418: ...395 Repeater Unit Section 10 2 Dimensions 42 3 50 3 1 27 5 95 mm...
Page 419: ...396 Repeater Unit Section 10 2...
Page 424: ...401 CX Integrator Section 11 1...
Page 575: ...552 Current Consumption Summary Appendix D 552...
Page 581: ...558 Index...
Page 583: ...560 Revision History...