Enhanced IEC – license for Horner PLC HMI controllers XL and XL Prime

Enhanced IEC for Horner PLC HMI controllers is a licensed extension of the Cscape programming environment, delivering advanced features, higher performance, and modern development capabilities in accordance with the IEC 61131-3 standard.

Key Features and Enhancements of Enhanced IEC:

Performance and Memory

• Up to 2 MB of logic program capacity
• Up to 128 kB of variable space – no dependency on PLC %R registers, fully tag-based addressing
• Up to 50% faster scan rate thanks to optimized code execution

Development and Debugging

• Online logic change without stopping program execution – ideal for machines with long startup or shutdown cycles
• Simulation support – run the IEC program locally on the PC during development
• Advanced debugging tools:
• Breakpoints and tracepoints
• Stepping (Step in, Step out, Step over)
• Debugger windows (Call Stack, Runtime, Variables)
• Real-time monitoring of program behavior

Data Types and Structure

• Support for extended data types:
• LREAL – 64-bit floating point
• LINT – 64-bit signed integer
• LWORD – 64-bit unsigned integer
• Support for Enumerated Types (ENUM) – define readable states or modes
• Support for Structures – group related variables into logical units
• Bitfield support – assign meaningful names to individual bits within a variable

Other Capabilities

• Fully tag-based variable addressing – eliminates the need to manually map to %R memory
• Exception handling support – detect and handle program errors directly in logic

License Information:

• Designed for Horner PLC HMI models XL Series (except XLTe/XLEe) and XL Prime Series.
• The permanent license is tied to a specific device.
• License activation is performed using the Cscape development environment.
• Enhanced IEC is a standard feature on Canvas devices (no license purchase required).