To access the latest version of 1Tool, users are encouraged to visit the official Carel KSA Support portal at under the “Download Support Software Utilities” section, where the most current releases and documentation are made available to registered partners.
To stay current, ensure you are accessing the latest version through the CAREL Activations Portal.
Recent versions of 1tool have focused on streamlining the development workflow and enhancing integration with IoT services. Enhanced Libraries
Before running any installer, archive your entire workspace directory. Copy your custom user libraries ( .lib files) and project folders to a secure cloud backup or external drive. Step 2: Download the Official Update
remains a cornerstone for developers working on the pCO programmable controller platform, offering a unified environment to manage every phase of an application's life cycle.
Since its inception, 1Tool has served as the cornerstone of programmable control development for Carel. First launched in 2007, this robust environment has empowered engineers and developers to create custom control solutions for countless HVAC/R applications—from precision air conditioning units and chiller systems to complex refrigeration networks and air handling units. Now, with the latest updates, Carel is elevating the platform to new heights, ensuring that users have access to cutting-edge tools that simplify development while maximizing performance.
CAREL 1tool is an integrated development environment (IDE) specifically designed for CAREL programmable controllers
Recent versions (V2.7.x) have prioritized compatibility with modern operating systems like Windows 10 and 11, alongside support for custom units of measurement in variable definitions .
Download and install the latest device template files alongside the main software update to guarantee full hardware resource mapping.
Log into the portal or the official CAREL software distribution platform. Download the latest verified executable installer for 1tool. Avoid downloading updates from third-party forums to prevent malware risks. Step 3: Verify Licensing and Hardware Dongles