A-B F Mode - Omega iServer Microserver User Manual

4.7.1.4 A-B F Mode

This mode is designed to operate with dual input pulse rate or frequency sources. Its
main function is to perform 4 common types of calculation (addition, subtraction,
multiplication and division) of 2 input values at a specific time and display the result
digitally as well as graphically with 2 types of chart, 6 types of time scale.
Users must access Configuration Page for setting this device operate under this mode,
first select option A-B F Mode from Device Type Selection (Operation Mode) Pull-Down
Menu then choose your type of Calculation:
+ : addition will calculate the sum of A+B
- : subtraction will calculate the difference of A-B
x : multiplication will calculate the product of A.B
/ : division will calculate the ratio of A/B.
From A-B Mode (Calculation Type) Pull-down submenu.
Chart of this A-B F Mode will have additional combined (calculation results of A&B) A-B
channels Value displayed digitally and graphically as a chart as illustrated in Figure 4.12.
This example displays the results of Dual Counts A and B with PCB's is unit of counting.
A-B: 200.6 PCB's is the subtraction of (CH A: 257 PCB's – CH B: 56.4 PCB's)
•
in Green Color and Purple Color background.
Third green line of Graph (between the top/blue of CH A and the bottom/red of
•
CH B) is representing the subtracted values of A-B on 1Hr/Div. Time Scale.
• Values of CH A and CH B are constant therefore the chart only shows all 3
straight lines.
Make certain that Debounce Time must be zero when operating with
frequency signals.
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