Post by kingsley on CODESYS Forum Migration discussion
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Please am new on this forum, for months u have been trying to link my virtual codesys with ignition scada Maker edition using OPC UAExpert but it has been frustrating over several months. please ssomeone can assist me
Last updated: 2025-12-25
CODESYS Forum Migration
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This night, the forum migration has finished. Even during the migration, the system was already available, and quite a few people already started to use it. We heartly welcome all forum members on the new platform. Data Conversion We took quite a big effort in the correct conversion and migration of the data. Anyway there are always chances, that some users are not migrated or posts got corrupted. If you encounter any anomalies, please let us know throught the support tracker in the footer of the web page. We do our best to correct it as far as it is possible on the new platform. Quick Start The basic handling of the new forum should be intuitive for users, who are used to our old CODESYS Forum. You will learn the differences and new features over time. I'd recommend to start by subscribing to the forums in which you are interested. To do so, select the forum and click on the "subscribe" link at the top of it. You will then get informed by E-Mail about changes. Open Source Hosting The Forum is just one part of CODESYS Forge. A main intent of the platform is to help developers and machine builders to collaborate on software development with CODESYS. One growing part of this newly created software is CODESYS related open source software. So we welcome and encourage you all, to share your own drivers, projects or tools under an open source license with us. And for sure, have fun with the new platform.
Last updated: 2025-12-25
Post by kingsley on CODESYS Forum Migration discussion
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Good morning
Last updated: 2025-12-25
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Post by mil581 on Modbus TCP Server connection is ESTABLISHED but all holding registers are value 0?
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Hello everyone! I'm facing a weird issue with CODESYS Control Win V3 x64 on a fresh Windows install. The situation is as follows: CODESYS Modbus TCP Server (Slave) is running and I can see live values in the mapping display of Modbus settings: GVL (e.g., 32, 42, 50). Port 502 is LISTENING according to netstat. When connecting via Modbus Poll or Node-RED, the connection status changes to ESTABLISHED and everything reports as fine. The Problem: Despite the successful connection, all holding registers return 0 no matter what. It's like the OS accepts the TCP handshake, the request counter goes up but the data payload never reaches Modbus Client (in this case Node-RED or Modbus Poll). Quick Stats: Firewall: Completely OFF. Unit ID: Verified & Matching. IP: Tried 127.0.0.1 and 192.168.0.1. Interface: Correctly bound in Ethernet Device settings. I already tried absolutely everything from changing IP address, subnet, port, deleting the project and starting new one and even nuking my old Windows install. Since I am near completion of my bachelor thesis only thing left for me to do is connect SoftPLC to NodeRED via Modbus but this issue is driving me crazy for weeks. I do not know what to do anymore.
Last updated: 2025-12-25
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Post by aniket-b on Scara3 kinematic robot error
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Here I have attached the task monitor data. What is very weird is that I am using MC__MoveDirectAbsolute FB, when I choose Vel/ACC/Jerk Factor to 1.0 it run fine. It ran 10 hours without the issue. But I get the error randomly when I use factor as 0.5
Last updated: 2025-12-29
Post by aniket-b on Scara3 kinematic robot error
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It is Moons PLC which uses Codesys IDE. https://www.moonsindustries.com/series/mca6-medium-motion-plc-a150102 This has Realtime capability using Linux with preempt
Last updated: 2025-12-29
Post by eschwellinger on Scara3 kinematic robot error
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Please check the jitter in the online taskmonitoring. cylce time of the motion task and jitter in case of the error.
Last updated: 2025-12-29
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