The World of Mervis - Knowledge Base
The World of Mervis - Knowledge Base
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  1. You are here
  2. Home
  3. English
  4. Mervis IDE/RT
  5. Help
  6. Software
  7. Libraries
  8. Lib.Mervis
  9. Measurement and Control
  10. Valves

Menu
  • Cloud
  • Help
  • IoT
  • Mervis Analytics
  • Mervis CloudAccess
  • Mervis DB
  • Mervis IDE/RT
    • Communication protocols
    • Help
      • Basic description of the Mervis IDE
      • Start the IDE
      • Process station, or controller (PLC)
      • Communication protocols description
      • Server Communication Protocols
      • New Project
      • Description of HMI Editor
      • Software
        • Common Elements
        • Data Types
        • Object Oriented Programming (OOP)
        • Program Organization Unit (POU)
        • ST language (Structured Text)
        • FUPLA language (FUnction PLAn)
        • Libraries
          • Basic Analogue Boxes
          • Basic Digital Boxes
          • Basic String Boxes
          • Communications
          • HVAC
          • System Function
          • Lib.Jablotron
          • Lib.Mervis
            • Utilities
            • Measurement and Control
              • Aggregates
                • Twin Pump Control (v1.4)
              • Alarms
                • Triggers
                • Alarm Aggregator (v1.1)
                • Alarm Interface
                • Alarm Extender (1 Input)
                • Alarm Extender (4 Inputs)
                • Alarm Extender (8 Inputs)
                • Alarm Extender (16 Inputs)
                • Alarm Coupler (4 Inputs)
                • Alarm Coupler (8 Inputs)
                • Alarm Class Status Detection
                • Alarm Priorities in Lib.Mervis
              • Controllers
                • Simple PI Controller with Enable Input (v1.2)
                • Advanced PI Controller
                • Tracking PI Selector
                • Up-Down Controller
              • I/O Transformations
                • I/O Transformation for Time Conversion
                • I/O Transformation for Time Conversion (Int)
                • I/O Transformation with Linear Shift
                • I/O Transformation with Linear Shift Defined by Two Points
              • Sources
                • Boilers
                • Cascades
              • Valves
                • Three-point Valve Control (v1.4)
              • Analog to Discrete Value Conversion
              • Counter with Overflow Protection
              • Start Detector
              • Equithermal Curve (v1.0)
              • Equithermal Curve - Using Four Points
              • Comparison with Hysteresis
              • Selection of Minimum, Maximum, or Average from Multiple Values
              • Value Memory - Real
              • Dead Zone
              • Inverted Dead Zone
              • Reset Block (v1.0)
              • Reset Block with Acknowledgement
              • Edge Coupler Block for Rising Edge Detection
              • Input with Range Monitoring (v1.3)
              • Input with Range Monitoring and Value Transformation (v1.2)
              • Switcher Block (v2.3)
              • Switch Block - Desired Value Switcher
              • Three-State Boolean Input
              • Outside Temperature (v1.2)
              • Converting Pipe Velocity to Volumetric Flow
            • Energy Monitoring
          • Lib.Unipi
          • Creating a new library
          • Creating user library
          • Library prototypes
        • New Solution
        • New Solution in Simple mode
        • Programming Languages
        • Access To Inputs/Outputs Of Inner Blocks
        • Initial Values
        • Dynamic Changes
    • Mervis RT
    • Webpanel
    • Mervis IDE/RT to DB Configuration
  • Mervis Proxy
  • Mervis SCADA
  • RcWare
  • Research

Valves

  • Three-point Valve Control (v1.4)
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