YOKOGAWA UP55A - Using Larger, Smaller, Average, or Difference of Two to Four Inputs as PV

7-15
IM 05P02C41-01EN
Input (PV, Remote, and Auxiliary Analog) Functions
7.4 UsingLarger,Smaller,Average,orDifference
ofTwotoFourInputsasPV
Description
Loop control with PV auto-selector function automatically selects or calculates the larger,
smaller, average, or difference of multiple (two to four) inputs and uses the result as PV.
The larger, smaller, and average are automatically computed based on the specified
number of inputs.
For the input difference, the difference between input 1 and input 2 is computed.
Input 1: PV terminal input
Input 2: RSP terminal input
Input 3: AIN2 auxiliary analog input
Input 4: AIN4 auxiliary analog input
► FunctionblockdiagramforLoopcontrolwithPVauto-selector;8.1.5LoopControlwithPVAuto-
selector, Heating/cooling Loop Control with PV Auto-selector, and Position Proportional Loop
Control with PV Auto-selector
SettingDetails
Parameter
symbol
Name
Display
level
Settingrange Menusymbol
PV.AS
Input computation
selection
STD
0: Max. value
1: Min. value
2: Ave. value
3: Input 1 - Input 2
4: Input 2 - Input 1
MPV
PV.NU Number of inputs STD
2: Use Input 1 and Input 2
3: Use Input 1, Input 2, and
Input 3
4: Use 4 inputs
7