Scripts Module
The Scripts Module enables server-client programming.
Modules → Scripts | Tutorial | How-to Guide | Reference
Key Concepts
ScriptTask: Script unit triggered by events or timers for automated execution
ScriptClass: Reusable C#/VB.NET/Python class library used by scripts and displays
ScriptExpression: Single-line expression for lightweight event-driven actions
ScriptReference: External .NET assemblies referenced by scripts and displays
What It Does
The Scripts Module enables server-client programming and parallel execution through:
Event-Driven Automation - Execute code in response to tag changes, alarms, or system events
Time-Based Processing - Run tasks on schedules, intervals, or specific times
Reusable Libraries - Create method collections for consistent calculations across the solution
Expression Evaluation - Perform simple calculations and updates without full task overhead
External Integration - Import third-party .NET assemblies and Python packages
Multi-Threaded Execution - Run tasks in parallel for maximum performance
Supported Languages
C# | Complex logic, performance-critical operations | Excellent | Full .NET access, strongly typed, IntelliSense |
VB.NET | Legacy systems, simple automation | Excellent | Familiar syntax, .NET access |
Python | Data analysis, ML integration | Good | Extensive libraries, NumPy/Pandas support |
Quick Selection Guide:
Maximum performance and reliability → C#
Legacy VB code migration → VB.NET
Data science or ML requirements → Python
Simple expressions → Any language (all are supported in expressions)
It's preferable to write C# target the .NET Standard 2.0, so your code to run directly in any .NET version.
Ir order to accomplish that, you need to setup your tools (or guide the AI) to use C# version 7.3.
Configuration Workflow
Create ScriptClasses | Build function libraries | Define reusable methods for your solution |
Create ScriptTasks | Implement business logic | Add data processing and automation code |
Create ScriptExpressions | Add simple actions | Single-line responses to events |
Add ScriptReferences | Include external libraries | Import DLLs for extended functionality |
Runtime Behavior
Scripts can execute in both server and client contexts based on configuration needs. The platform manages dedicated processes with multi-threading for tasks and expressions, running them in isolated application domains for security and reliability. Built-in diagnostics track execution time, CPU usage, and error states, enabling performance optimization and troubleshooting.
Feature Highlights
Multi-Language Support - Mix C#, VB.NET, and Python in a single solution
Integrated Code Editor - IntelliSense, debugging, breakpoints, and step-through execution
Server and Client Domains - Scripts execute globally (server) or locally (client)
Flexible Triggers - Date, time, condition, tag change, or interval-based execution
Native Object Access - Direct IntelliSense access to tags, datasets, alarms as .NET objects
Python Integration - Configure any Python interpreter version per project
Code Translation - Convert between C# and VB.NET automatically
Exception Protection - Automatic error handling prevents script failures from affecting system
Multi-Threaded Processing - Parallel task execution with thread pool management
Scripts Module Links
Explanation - to understand concepts
→ Modules / Business Operations / Scripts Module
Tutorials - to learn by doing
→ Tutorials / Business Operations / Scripts Module Tutorial
How-to Guides - to accomplish specific tasks
→ How-to Guides / I Business Operations / Scripts Module How-to Guide
Reference - technical details
→ Technical Reference / Business Operations / Scripts Module Reference