FAPT LADDER-III 1.0

FAPT LADDER-III by FANUC LTD. is a Windows-based engineering tool for creating, editing, documenting, and maintaining ladder logic for the FANUC PMC (Programmable Machine Control) used in FANUC CNC systems. It helps machine builders, integrators, and service engineers develop and troubleshoot the machine-side control logic that coordinates CNC functions with I/O, hydraulics, interlocks, and auxiliary devices.

Key features

• Offline development: Build and edit ladder programs with symbols, comments, cross-references, and consistency checks for easier readability and maintenance.
• Online connection and diagnostics: Connect to the CNC/PMC to transfer programs, monitor ladder execution in real time, view I/O states, and perform permitted force/set operations for troubleshooting.
• Upload/download and backup: Retrieve existing PMC ladders from a control, deploy updates, and back up programs and relevant data.
• Signal tracing and search: Track addresses across rungs, quickly locate coils/contacts, and navigate complex logic efficiently.
• Documentation and printing: Generate clear printouts and reports to support commissioning, handover, and service.
• Broad controller support: Compatible with a wide range of FANUC CNC/PMC platforms; exact model support depends on the software version and control options.

Benefits

• Speeds commissioning and change implementation
• Reduces downtime with clear diagnostics and monitoring
• Improves long-term maintainability through structured, well-documented logic

Basic requirements

• Windows PC and appropriate licensing
• Network or serial connectivity to the target control (availability depends on the CNC model and options)

Note: In some documentation, this product is referred to as FANUC LADDER-III.

FAPT LADDER-III is developed by FANUC LTD.. The most popular version of this product among our users is 1.0. The name of the program executable file is Fladder.exe. Works with lad file type.

You can check Unitronics U90 Ladder, Ladder Master, DBF Repair Toolbox and other related programs like iCCup WarCraft III at the "download" section.