Carel 1tool 2.6.46 2.6.57 Sp1 -

Carel 1tool (versions 2.6.46 and 2.6.57 SP1) a legacy development environment designed specifically for the CAREL pCO programmable controller platform

. These versions represent a critical stage in the evolution of

• Visual Logic: Instructions are blocks connected by lines.
• Function Blocks: Extensive library of HVAC-specific blocks (PID control, defrost logic, alarm management).
• Legacy Support: These versions maintain backward compatibility with code written in much older versions (1.2x series), though conversion is sometimes required.

2. Version 2.6.46: The "Legacy Stable"

Released circa 2016-2017, 2.6.46 was the safe zone. Carel 1tool 2.6.46 2.6.57 SP1

Strategy Editor: Where the core control logic is developed using Function Block Diagrams (FBD).

Zooming: Use CTRL + MouseWheel to zoom in and out of the strategy. Pan Mode: Hold the SPACE bar to move around the workspace. Carel 1tool (versions 2

Update Process: Follow the Carel guidelines for updating the software. This may involve backing up your configurations, uninstalling the old version, and then installing the new version.

Pro Tip: If you are migrating a site from 2.6.46 to 2.6.57 SP1, export your .pco project file in 2.6.46 first, then import it into 2.6.57 SP1. Do not attempt to convert the .dat database file directly. Visual Logic: Instructions are blocks connected by lines

The Carel 1tool is a cornerstone development environment for engineers working with the pCO series of programmable controllers. As a comprehensive suite designed for the HVAC/R (Heating, Ventilation, Air Conditioning, and Refrigeration) industry, it manages every phase of a project—from initial design and simulation to field commissioning.