Learn INDUSOFT-WEBSTUDIO-APIS with Real Code Examples
Updated Nov 27, 2025
Explain
InduSoft Web Studio APIs enable automation developers to extend HMI/SCADA functionality.
APIs support scripting, communication with PLCs, databases, and web services.
Facilitate integration with third-party software, IoT devices, and cloud platforms.
Allow dynamic runtime control, data manipulation, and event handling.
Widely used for industrial monitoring, reporting, and supervisory control applications.
Core Features
Read/write access to HMI/SCADA tags and variables
Event-driven scripting for alarms and data changes
Dynamic control of screens, animations, and objects
Database read/write and reporting automation
Custom protocol and device communication via APIs
Basic Concepts Overview
Tags and variables representing process data
Screens and object properties accessible via API
Event-driven programming for alarms and triggers
Database and web service connectivity
Script execution context and scheduling
Project Structure
HMI/SCADA project file
Tag and variable definitions
Screens and object hierarchy
API script modules
Database and web service connection configurations
Building Workflow
Define project structure and tags
Identify objects and screens for API control
Develop scripts for automation, reporting, and events
Test scripts in runtime simulation
Deploy scripts with project to live HMI/SCADA runtime
Difficulty Use Cases
Beginner: simple tag read/write scripts
Intermediate: custom alarms and notifications
Advanced: dynamic dashboards and object control
Expert: full MES or IoT integration
Architect: enterprise-level SCADA with API-driven automation
Comparisons
InduSoft Web Studio vs Ignition - scripting flexibility vs modular architecture
InduSoft Web Studio vs Wonderware - integration with third-party APIs
Web Studio vs simple HMI - more automation and data connectivity
APIs vs internal tag scripting - more programmatic control
Database-driven vs static visualization - API enables dynamic integration
Versioning Timeline
1997 - Initial InduSoft HMI/SCADA release
2003 - API scripting introduced
2008 - Web deployment and thin-client support
2012 - IoT and web service integration
2016 - Enhanced database and OPC support
2020 - Cloud-ready runtime with MQTT/REST connectors
2025 - Latest version with advanced API libraries and cybersecurity enhancements
Glossary
InduSoft Web Studio - HMI/SCADA development platform
API - Application Programming Interface
Tag - variable representing process or runtime data
Screen Object - HMI graphical element
Event - trigger for script execution