"HMI code" typically refers to the programming code or script written to develop the functionality of an HMI (Human-Machine Interface) application. This code is used to define the behavior, appearance, and interaction of elements within the HMI interface.
The specific language or programming environment used to write HMI code may vary depending on the software or platform being used to develop the HMI application. Some common languages and environments for HMI programming include:
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Structured Text (ST): Structured Text is a high-level programming language commonly used in industrial automation for PLC and HMI programming. It is similar to Pascal and allows for the development of complex logic and algorithms.
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Function Block Diagram (FBD): FBD is a graphical programming language used for PLC and HMI programming. It allows developers to create control algorithms using graphical blocks representing logic functions.
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Sequential Function Chart (SFC): SFC is another graphical programming language used for sequential control tasks. It allows developers to create state-based control sequences using graphical elements such as steps, transitions, and actions.
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Scripting Languages: Some HMI development environments support scripting languages such as JavaScript, VBScript, or Lua for customizing the behavior and functionality of HMI components.
In addition to programming languages, HMI code may also involve configuring graphical elements, defining data communication protocols, setting up data acquisition, configuring alarms and events, and integrating with other systems such as PLCs or SCADA systems.
Overall, HMI code encompasses the various programming and configuration tasks involved in developing the software functionality of an HMI application, enabling operators to interact with and control industrial processes effectively.
