I recently installed the latest TwinCAT 2 64-bit (build 2301) on my Windows 7 64-bit computer. After completing the installation and rebooting, I noticed that the TwinCAT icon appeared greyed out. When attempting to launch the program, an "Error 0x426 starting TwinCAT system!" message greeted me. I proceeded to the Services panel, trying to manually start all TwinCAT-related services. However, starting the TwinCAT System Services resulted in the error, "The dependency service or group failed to start." Previously, an older version of TwinCAT 2 64-bit functioned perfectly on this computer, but the new version isn't working. Updating to the latest TwinCAT version is necessary as the Embedded PC has been upgraded and requires the new TwinCAT System Manager for proper communication. Unfortunately, the older version can't establish this communication. Has anyone else encountered this issue, and are there any solutions or workarounds available? Any help would be greatly appreciated.
Based on my understanding, the TwinCAT 2 runtime has historically been incompatible with 64-bit machines. This is the reason behind the existence of the x64 engineering version, which is specifically designed to enable users to configure systems in programming mode while managing remote runtime environments.
To effectively run the TC2 runtime, set up a 32-bit virtual machine and establish a connection. If you're operating on Windows 7, consider utilizing Windows Virtual PC from Microsoft. Alternatively, VMware Player or VirtualBox are also reliable options. Remember that you will require both a valid Windows license and a TC2 license to complete the setup process.
Archie mentioned that, to the best of his knowledge, the TwinCAT 2 runtime has never supported operation on a 64-bit system. This is the reason for the existence of the x64 engineering version, which primarily allows users to configure the system for programming remote runtime systems. Click to expand... Indeed, I have installed the TwinCAT 2 x64 engineering version 2.11 (build 2241), but it fails to launch—the icon appears greyed out. In the past, this version successfully ran on the same machine; however, after uninstalling it and installing the latest build 2301, which also failed to start, I attempted to reinstall the older version. Unfortunately, the older version now also refuses to run. Is there anything I can do to resolve this issue? Any assistance would be greatly appreciated. Thank you.
I'm concerned about potential issues resulting from an incomplete uninstallation of TwinCAT 2.11 (build 2241). If this is indeed causing problems, what steps can I take to resolve it?
CommissioningMan mentioned: To use TC2 runtime, you'll have to run it on a 32-bit virtual machine and establish a connection. Since you're using Windows 7, options include Microsoft's Windows Virtual PC, VMware Player, or VirtualBox. Remember, you'll need valid licenses for both Windows and TC2. Click to expand... However, if I understand correctly, the runtime may not be necessary. The main requirement is to connect to an Embedded PC for programming purposes. If the icon appears grey instead of the expected blue, and TwinCAT is not in configuration mode, a route to the PLC cannot be established, right? This suggests there might be an issue with the TwinCAT installation, as derickloo pointed out. This rephrased text incorporates commonly searched terms such as "32-bit virtual machine," "Windows 7," "programming Embedded PC," "TwinCAT configuration mode," and "PLC connection issues," enhancing its SEO potential while maintaining the original message.
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Answer: - Error 0x426 typically indicates a failure in starting the TwinCAT system services due to dependency issues. This error can occur when upgrading to a new version of TwinCAT 2 on Windows 7.
Answer: - A greyed-out TwinCAT icon usually means that the system services are not running correctly. This may happen if there are issues with service dependencies or incorrect installation procedures.
Answer: - To resolve this error, ensure that all necessary Windows services that TwinCAT depends on are running. You might need to check the event viewer for specific error messages and verify that all TwinCAT-related services are set to start automatically. Reinstalling TwinCAT or repairing the installation may also help.
Answer: - First, check the Windows Services panel to identify which specific services are failing to start. Make sure that all dependent services are configured correctly and are able to start. You may need to review the system logs for additional details.
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