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Post by fless on Warning C0564 when compiling CNC project with variables program
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Hello, we are porting a CNC project from codesys 3.5.16 to codesys 3.5.19. The project has lots of CNC programs with variables. now we get hundreds of messages like this. [WARNING] CNC Test SP19: TestCNC SPS: PLC Logic: Application: C0564: A reference to uninitialized variable varCNC is used for initialization of TestCNC_D. Accessing the uninitialized variable may result in unexpected behavior. The objects program_name_D are implicit generated by codesys. I see no way to generated them after the variables. Is there a way to correct the initialization order? We know how to suppress this warning. But we need a clean solution as the warning already saved us in a other nonCNC project. Attached a small demo of the problem.
Last updated: 2024-03-21
Post by kleeswi on Lizenz Reinstallieren
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Hier unser Vorgehen und die Fehlermeldung. Die ausgewählte Lizenz wurde früher auf dem gleicher Raspberry pi installiert und sollte sich daher wieder aktivieren lassen!
Last updated: 2024-03-21
Post by kevinrn on Licensing info not available.
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I'm facing a similar issue. @eschwellinger, can you also send me a preliminary version? Thank you in advance.
Last updated: 2024-03-21
Lizenz Reinstallieren
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Post by tomast on Siemens V20 Frequenzumrichter über Modbus RTU
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Hi Tim, Have you sorted out your problem because i have also problems with i?
Last updated: 2024-03-21
Codesys and Siemens SINAMICS 20 modbus RTU "Response CRC Fail"
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Codesys and Siemens SINAMICS 20 modbus RTU "Response CRC Fail"
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Post by tomast on Codesys and Siemens SINAMICS 20 modbus RTU "Response CRC Fail"
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Hi everyone, I'm currently working on a project involving the control of 5 VFDs via Modbus RTU, this time using the WAGO 750-8212 CPU. So far, I've managed to make progress, but I've encountered an issue. While I can successfully read and write to all the registers I need, I consistently encounter a "Response CRC Fail" error when attempting to write the value 1151 to the STW register at address 40100. I'm able to set the frequency via register 40101 and adjust all other parameters using different registers. Setting STW to 1150 results in the drive ready boolean from the ZSW-bit being received instantly. However, the moment I attempt to send 1151 to register 40100, I immediately receive the "Response CRC Fail" error for all channels. I've also attempted to use combined control, employing Modbus for frequency control and starting from a digital input. Everything seems to function properly until I send the start command to the VFD. Interestingly, I consistently encounter the same error the moment I send the start command, regardless of whether I use register 40006 (high) or 40100 (1151). Could someone please assist me in resolving this issue?
Last updated: 2024-03-21
Siemens V20 Frequenzumrichter über Modbus RTU
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Siemens V20 Frequenzumrichter über Modbus RTU
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Post by florian on Stepper Drive with Ethercat
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Codesys has a motion libraries (SoftMotion), but you need to buy a licence keys for them to work. the most basic one is SoftMotionLight. you just have to select your drive in the device view and add a SoftMotionLight CiA402 axis. then the library is added to your project. You can use the SML_* motion FBs and configure the axis now.
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Post by wind-11 on Simulation Modubus
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Hallo zusammen, ich bin über die Arbeit auf ein Problem in der Simulation gestoßen. In einem Test-Projekt haben wir eine Modbus Verbindung aufgebaut. Dies wollten wir mit Test-Werten simulieren. Verbindung hat auch funktioniert, jedoch sind leider die Werte eingfrohren und melden keine "laufenden Daten". (Bild im Anhang) Da es meine ersten Berührungspunkte mit Codesys sind und mein Kollege an anderer Stelle weiter arbeitet, hatte ich gehofft, dass vielleicht hier jemand eine Idee hat. MfG und schon jetzt ein Danke vorweg.
Last updated: 2024-03-22
Post by markushunter on Different behavior between the "Start" button in the IDE and the Cmp function "AppStartApplication()"
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One workaround is to create a second application which is started after the rested of the main application. The second application starts the main application after time x and is rest after done start of the main application. No problems during the fieldbus re-start by this workaround.
Last updated: 2024-03-22
Different behavior between the "Start" button in the IDE and the Cmp function "AppStartApplication()"
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Different behavior between the "Start" button in the IDE and the Cmp function "AppStartApplication()"
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Post by wind-11 on Problem with simulation Modbus
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Hello everyone, I encountered a problem in the simulation while working. In a test project we set up a Modbus connection. We wanted to simulate this with test values. The connection also worked, but unfortunately the values are frozen and do not report any “current data”. (Picture attached) Since these are my first points of contact with Codesys and my colleague continues to work elsewhere, I was hoping that someone here might have an idea. Kind regards and thanks in advance.
Last updated: 2024-03-22