Carel 1tool (versions 2.6.46 and 2.6.57 SP1) a legacy development environment designed specifically for the CAREL pCO programmable controller platform
Version 2.6.46 of Carel 1tool was released as part of the 2.6 series. This version included several features and improvements, such as:
Carel designed 1tool to be more than just a code editor. It is a comprehensive suite that manages the entire life cycle of an HVAC/R application, from graphical user interface (GUI) design to fieldbus configuration. Carel 1tool 2.6.46 2.6.57 SP1
Help Files: Custom block help files must be saved in .htm format within the specific %APPDATA%\CAREL\1tool_custom_help\ directory. Educational Resources
She looked at the clock. 2:47 AM. The archive servers hummed around her, a low, breathing sound she’d never noticed before. Carel 1tool (versions 2
Integrated Environments: Combines strategy design, user interface (mask) editing, network configuration, simulation, and commissioning into one suite.
Last updated: October 2025. Specifications based on Carel S.p.A. release notes for versions 2.6.46 (Build date: March 12, 2021) and 2.6.57 SP1 (Build date: November 3, 2022). Help Files : Custom block help files must be saved in
A dedicated suite for commissioning, field debugging, and uploading applications via 3. Comparative Version Analysis Version 2.6.46 (Legacy Stability)
Modular Programming: Developers can save their own custom algorithms as reusable modules, significantly reducing development time for subsequent projects.