The World of Mervis - Knowledge Base
The World of Mervis - Knowledge Base

  1. You are here
  2. Home
  3. Welcome to the Mervis Knowledge Base
  4. Mervis IDE/RT
  5. Help
  6. Software
  7. Libraries
  8. Lib.Mervis Libraries
  9. Measurement and Control

Menu
  • Ancillary services
  • Best Practice
  • Help
  • Licensing & Pricing
  • Mervis DB
  • Mervis IDE/RT
    • Download
    • 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
      • HMI Editor
      • Software
        • Common Elements
        • Data Types
        • Object Oriented Programming (OOP)
        • Program Organization Unit (POU)
        • Structured Text
        • FUPLA (Function Block Diagram) Language & Editor
        • Libraries
          • Basic Analogue Boxes
          • Basic Digital Boxes
          • Basic String Boxes
          • Communications
          • HVAC
          • System Function
          • Lib.Jablotron
          • Lib.Mervis Libraries
            • Utilities
              • Messaging
              • HMI
              • 030-types
            • Measurement and Control
              • Aggregates
              • Alarms
              • Controllers
              • I/O Transformations
              • Sources
              • Valves
              • Switcher Block (v3.2)
              • 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)
              • Switch Block - Desired Value Switcher
              • Three-State Boolean Input
              • Outside Temperature (v1.2)
              • Converting Pipe Velocity to Volumetric Flow
            • Energy Monitoring
              • Generic Consumption Meter
              • Electricity Meter
          • Lib.Unipi Library
          • 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
      • Webpanel
      • Mervis RT
      • Uploading of program to a PLC
      • Mervis IDE/RT to DB Configuration
      • PlcTool
      • Function Block Libraries
      • .Net Server for Mervis RT
    • Mervis RT
    • Webpanel
    • PlcTool
    • Mervis IDE/RT to DB Configuration
  • Proxy & CloudAccess
  • Mervis SCADA
  • RcWare
  • Research

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)
  • Switcher Block (v3.2)
    • Switcher Block (v2.3)
    • Switcher Block (v3.0)
    • Switcher Block (v3.2)
  • 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)
  • Switch Block - Desired Value Switcher
  • Three-State Boolean Input
  • Outside Temperature (v1.2)
  • Converting Pipe Velocity to Volumetric Flow
    Log In