Find the right tools.
Keep the right versions.
Development tools, communication packages and device firmware. Match the package to your installation, then read its release notes before making a change.
Explore release historiesRead the matching release notes first. Some upgrades require a specific monitor, system and runtime firmware order. Keep exact device and installed-version requirements in view.
LX5 eco and LX5 pro share the published LX5 firmware. Firmware downloads for LX5 core and LX5 ultra have not been released yet.
01 / PackagesDevelopment tools
Develop in M2M Studio and investigate execution on supported physical hardware.
RTCU M2M Studio
Version 1.10Project management, VPL source editing, simulation and device communication. Package date: 29 August 2026.
RTCU IEX
Version 1.10Instrumented execution and debugging for applications on physical NX32L-based devices. Package date: 29 August 2026.
02 / PackagesUSB programming drivers
Choose the package for your Windows architecture.
RTCU USB Driver · 64-bit Windows
Version 6.0064-bit Windows programming-port driver. Package date: 17 May 2026.
RTCU USB Driver · 32-bit Windows
Version 5.0032-bit Windows programming-port driver. Package date: 27 February 2024.
03 / PackagesCommunication & deployment
Server, monitor, manager and integration packages for RTCU device communication and deployment.
RTCU Communication Hub
Version 1.04Communication Hub server and Monitor packages. Package date: 30 August 2020.
Communication Hub Plug-in Developers Kit
Version 1.10Plug-in development package for the Communication Hub.
RTCU Deployment Server
Version 6.10Deployment Server and Manager packages. A Communication Hub license is required.
RTCU Deployment Server API
Version 3.10Application integration library for the Deployment Server.
04 / PackagesNX / LX runtime firmware
Read the matching release notes and upgrade requirements before choosing a firmware file.
RTCU NX-200 runtime
Version 2.60.00Requires System V1.09.00 / Runtime V2.41.00 or later.
RTCU NX-400 runtime
Version 2.60.00Requires System V1.09.00 / Runtime V2.41.00 or later.
RTCU NX-900 runtime
Version 2.60.00Requires System V1.09.00 / Runtime V2.41.00 or later.
RTCU LX2 runtime
Version 2.60.00Select the LX2-specific runtime package.
RTCU LX4 runtime
Version 2.60.00Requires System-Firmware V1.06.00.
RTCU LX5 eco/pro runtime
Version 2.60.00Requires System-Firmware V1.06.00.
RTCU LX9 eco runtime
Version 2.60.00Select the LX9 eco-specific runtime package.
RTCU LX9 pro runtime
Version 2.60.00Select the LX9 pro-specific runtime package.
05 / PackagesNX system firmware
System firmware and update prerequisites remain separate from runtime versions.
RTCU NX-200 system update
Version 1.09.22Must be installed on top of System V1.09.00.
RTCU NX-200 system
Version 1.09.00Includes Runtime V2.00.00.
RTCU NX-400 system
Version 1.09.00Includes Runtime V2.00.00.
RTCU NX-900 system
Version 1.09.00Includes Runtime V2.00.00.
06 / PackagesLX system firmware
Use the file matching the installed system version. Install monitor firmware before system firmware.
RTCU LX4 system
Version V1.04.00Upgrade from System V1.03.00; includes Runtime V2.00.00.
RTCU LX4 system
Version V1.06.00Upgrade from System V1.04.00; includes Runtime V2.11.00.
RTCU LX4 system
Version V1.06.00Upgrade from System V1.05.00; includes Runtime V2.11.00.
RTCU LX5 eco/pro system
Version V1.04.00Upgrade from System V1.02.00; includes Runtime V2.00.00.
RTCU LX5 eco/pro system
Version V1.06.00Upgrade from System V1.04.00; includes Runtime V2.11.00.
RTCU LX5 eco/pro system
Version V1.06.00Upgrade from System V1.05.00; includes Runtime V2.11.00.
RTCU LX4 monitor
Version 2.00.00Apply monitor firmware before system firmware.
RTCU LX5 eco/pro monitor
Version 2.00.00Apply monitor firmware before system firmware.
07 / PackagesAPIs & integration resources
Packages for existing integrations. Check the age and exact platform requirements of each resource.
RTCU M2M Platform SDK
Version 2.00Advanced C/Linux platform-extension package. Confirm device-specific availability and requirements with Logic IO.
Microsoft Azure IoT Hub API
Version 2.10MQTT integration example released 30 November 2021. Check current cloud-service requirements before use.
Google Cloud IoT Core API
Version 1.00Historical package dated 30 August 2020; retained for existing integrations.
RTCU Programming Tool
Version 8.50Standalone local and remote application/firmware transfer utility.
RTCU Communication Support Package
Version 4.60Device communication package for serial connections and the Communication Hub.
Communication Protocol Documentation Set
Version Gateway 3.01 / Serial 2.20 / RACP 1.40Password-protected ZIP. Request the unzip password from support@logicio.com. Updated 30 July 2026.
Communication Hub Protocol Reference Implementation
Version 7.00Reference implementation for the Communication Hub protocol.
08 / PackagesClassic tools & historical packages
Retained resources for established installations. Match software and firmware to the installed hardware and its documentation.
Classic RTCU IDE
Version 9.99Classic development environment. Package date: 25 May 2026.
RTCU Emulator
Version 1.60Windows Emulator for X32 and NX32 devices; it does not support NX32L-based devices.
Communication Hub Demonstration Package
Version 3.01RTCU and backend PC application examples.
Using VSMSGW.DLL from C#
Version 3.00C# communication example package.
Vehicle Tracking Demo Package
Version 3.01Vehicle-tracking demonstration package.
Advanced Vehicle Tracking Demo Package
Version 2.11Advanced vehicle-tracking demonstration package.
Visual C++ 2015–2019 Redistributable · x64
Version 14.24.28127Historical dependency package listed for some Windows 7 installations.
Visual C++ 2015–2019 Redistributable · x86
Version 14.24.28127Historical dependency package listed for some Windows 7 installations.
NMP Windows CE upgrade package
Version 3.00Follow the readme and NMP release notes for the upgrade procedure.
RTCU MX2 turbo series firmware
Version 5.18Firmware for X32/NX32 devices. Check the exact device model before choosing a file.
RTCU MX2i series firmware
Version 5.19Package date: 8 October 2025.
AX9 turbo, AX9/AX9i, DX4i pro mk2, DX4i pro, CX1, SX1 & MX2-SOM firmware
Version 5.16Choose the firmware file for the exact listed hardware family.
MDT-200 terminal firmware
Version 1.01Requires the MDT-200 Programming Tool.
MDT-200 Programming Tool
Version 1.00Requires the special programming cable described in the MDT-200 Firmware Upgrade Guide.
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Check your exact hardware and installed versions before updating.