# Gateway 2.2: Industrial-Grade Hardware Support and Improved Reliability

We are pleased to announce the release of Enapter Gateway v2.2, which is a new version of the gateway software that brings support for industrial-grade hardware with built-in I/O and overall system reliability improvements. This update includes a range of new features and improvements that enhance the performance, functionality, and security of the Enapter Gateway.

Version 2.2 was released on May 4, 2023.

# Support for Industrial Hardware

The Enapter Gateway now supports industrial-grade hardware with built-in I/O, such as CAN, RS485, RS232, and Digital I/O modules. This significant development expands the range of applications in which the Enapter Gateway can be used, making it an ideal solution for a wide range of industrial settings, with a particular focus on energy automation and control systems.

The first hardware platform that has been integrated is the Welotec Arrakis Mk3 industrial PC. It also brings support for its built-in Telit LE910 Series LTE modem, EMUC-B202 CAN module, Fintek F81801 RS485/RS232 module, and Lex Systems CIO108 Digital I/O board.

Zero-configuration LTE module support simplifies networking setups in remote locations. It comes with strict security settings that disallow unauthorized access from remote hosts, ensuring that your Enapter Gateway setup is fully protected.

We are committed to expanding the support for such platforms in the upcoming Gateway versions. If you have any questions or suggestions, please feel free to reach out to us at developers@enapter.com.

# Improved Reliability

Reliability is crucial for any energy control system, and Enapter Gateway v2.2 brings significant improvements to the reliability of the gateway software while maintaining flexibility at a high level.

One of the major highlights of the Enapter Gateway v2.2 release is the improved boot fallback logic. This ensures that the gateway can recover from any boot issues that may occur, which is critical for maintaining uptime and ensuring that the gateway is always available, especially in off-grid systems with unreliable power supply. With this improvement, users can have peace of mind knowing that their energy control system is always up and running, even in challenging environments.

The boot process is now 3 times faster, significantly reducing the recovery time after a power failure.

The support for on-disk installation is another essential improvement that makes the gateway installation more robust and error-prone. Previously, the gateway software could only be installed on a USB flash drive, which could be inconvenient and sometimes less reliable than on-disk installation. With the support for on-disk installation, users can now install the gateway software on a built-in hard drive, which is more convenient, reliable, provides better performance, and reduces the risk of disk errors.

# New Connectivity APIs

The built-in hardware IO modules, such as CAN, RS485, RS232, and Digital I/O, are now accessible in Virtual UCM via Lua modules such as dio, can, and serial.

Additionally, the release supports cross-UCM communication via the ucm Lua module, which means that virtual UCM can now run commands on any other UCM, including hardware ones. This feature allows users to control physically distributed hardware I/O modules from a single gateway, simplifying the setup process and reducing costs. Users can also use a single hardware UCM (e.g., Enapter 6-channel relay ENP-RL6) to implement several Virtual UCM-backed devices (e.g., 6 devices, one separate load switch per channel), providing greater flexibility and efficiency in energy control systems.