Structure-Aware Find & Replace
Go beyond simple text replacement. Precision Replace understands L5X program structure and offers 12 specialized action types - from whole-word tag rename to UDT member path rewriting, array index shifting, and instruction swapping. Chain actions into pipelines where each step sees the output of the previous one, preview all changes before applying, and save named configurations for reuse.
How It Works
Define
Upload L5X file and define action pipeline
Preview
Preview changes with side-by-side diff
Apply
Apply and download updated L5X
Built for engineers like you
Renaming a zone from Zone_A to Zone_B across an entire program with hundreds of tag references
Use whole-word tag rename action, preview 200+ changes, apply in one operation with zero partial matches.
Migrating a program from one UDT structure to another after a client changes their data standard
Use UDT member path rewrite to update all member references, chain with a tag rename for updated naming conventions.
Standardizing instruction usage across a legacy program - replacing all MOV with COP for array operations
Use instruction swap action with array operand filter, preview changes, apply and export clean L5X.
Text-based find-and-replace breaks PLC logic because it doesn't understand program structure.
What PLCflow Does
- Upload L5X file and define action pipeline
- Preview changes with side-by-side diff
- Apply and download updated L5X
Before & After
See the difference PLCflow makes on a real project.
- Open Studio 5000 Find/Replace - no structure awareness
- Accidentally replace partial tag names (Zone_A_Motor matches Zone_A_Motor_Speed)
- Can't chain multiple replacements safely
- No way to preview what will change before committing
- Upload L5X and define action pipeline with structure-aware rules
- Whole-word matching prevents accidental partial replacements
- Preview every change across all routines before applying
- Save pipeline for reuse on the next project
Engineered for Complexity
Purpose-built capabilities for industrial-scale projects.
12 Action Types
Basic find/replace, whole-word tag rename, pattern-based rename, prefix/suffix transform, UDT path rewrite, case transform, array index shift, instruction swap, operand replace, numeric constant replace, comment find/replace, and comment prepend/append.
Action Pipeline
Chain multiple actions in sequence where each step processes the output of the previous one. Build complex transformations from simple building blocks.
Preview Before Apply
See a complete diff of every change across all affected routines before committing. No surprises.
Save & Load Pipelines
Save named pipeline configurations for reuse across projects. Share standard transformations with your team.
Try Precision Replace with a 14-day Pro trial
No credit card required. Import your first file and generate production-ready output in under a minute.