Omron CRT1 - 10-2009, Operation Manual

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517
Analog I/O Slave Unit (input) Functions
Section 11-4
Hysteresis Setting
The hysteresis value can be set using the CX-Integrator to prevent detection
of top or valley values that occur due to minor fluctuations in the analog input
value. This will cause the start of data holding to be delayed after the actual
top or valley value occurs, as shown in the following diagram.
Timing for Setting Data
Setting Hysteresis Using
the CX-Integrator
1,2,3... 1. Input the value for hysteresis in the Hysteresis Field in the Top/Valley Tab
under the Function Choice heading.
2. Return to the General Tab Page, click the Transfer [PC to Unit] Button to
download the data, and then click the Reset Button.
3. Click the OK Button and exit the window.
Note The hysteresis value set for the top/valley hold function is also used as the
hysteresis value for the comparator function.
Analog input value
Set hysteresis value
×
2
Valley hold value
Top/Valley Detection
Timing Flag
Delay