Post by egau on Hard shutdown: no code on device after power on ^{CODESYS Forge talk (Post)}
This explanation aligns with the issues we’re experiencing with our machines. The scenario I described is happening with one of them (let’s call it Machine A). This machine is identical to another one (Machine B), except for some custom code that facilitates communication with an external Beckhoff PLC for MES integration in the production line. Machine B has been powered on and off daily for at least three months and has never had this problem. Given that, I highly doubt the MES custom code is the cause of the code corruption. This being said, your explanation does seem plausible. However, if faulty EtherCAT cables were the issue, why wouldn't the error occur during normal operation? Why would bad cables only cause problems during a hard shutdown? One last question: When you encountered this behavior, did you see a similar error in your logs? i.e, an "AccessViolation" exception in the EtherCAT Task?
Last updated: 2024-10-03

Post by mp9876 on Device logon problem following fresh install ^{CODESYS Forge talk (Post)}
All screenshots are enclosed in MS Word document. NOTE; 4 questions features at the end. Any assistance would be greatly appreciated! Hi everyone, I am still having device logon problem following a fresh install Here are the STEPS I went through following a FRESH CODESYS Win 64 3.5.19.60 install on a different computer. ‘Gateway not configured properly’ when attempting to REFRESH from the Users and Groups. Then did Gateway manage and confirmed it was ok: This message popped out as it was a fresh install: YES then: Initially went with Administrator twice (user & password) but it did not like it. No device is responding to …: Continued by setting a new user Pressed OK and obtained the following message: Stopped and Restarted PLC at that point: Obtained the following: Attempted to login a 2nd time without success. Then I scanned the network to see if matching device can be detected: Only way to get it detected was to remove the tick in the ‘Hide non-matching devices…’ Attempted a WINK but got a return like this one: REFRESH either @ Users and Groups or @ Access Rights returns: Then created user ‘mp’ at Project level ang logged in: Understandably device user mp9876 was not valid for the Project. Device information A few questions comes to my mind following these connection attempts: 1- Gateway not configured properly message pops out because of a non-compatible device ? 2- Why would the device not be compatible ? 3- Any way to make the device compatible ? 4- Any ideas on how to get this connectivity problem to the device solved ?
Last updated: 2024-03-17

Post by idalu on Profinet PN_Controller Issue, Network Adapter ^{CODESYS Forge talk (Post)}
i have a problem with Profinet on my project. I'm using Codesys RTE 3.5.19.50. When i download program to controller the ethernet is ok, PN_Controller is ok but every device i'm trying to connect is red with error "DCP no RealStationName". When i'm trying to Scan for Devices on PN_Controller there are no devices found. I have installed Codesys driver CmpEt1000Drv to my network adapter (i'm sure it is right intel pro 1000 model). I have noticed that when i installed codesys driver i'm no longer able to ping this network adapter (i can ping it when intel driver is installed). On my previous projects with runetimes i can ping it even with codesys driver installed. I have also tried to do downgrade of everything to version 3.5.19.20 and it not helped.
Last updated: 2024-01-17

Post by pernockham on Engineering IDE from linux? ^{CODESYS Forge talk (Post)}
I have done the switch (linux mint, virtual windows through QEMU/KVM) now and is generally pleased. Have had problems in two areas initially. To bridge IP to the Virtual unit (solved), I overthought things initially. Solution. Configure manually a bridge in the mint-"network connections". Use that bridge in the Qemu settings as "Bridge device", "Device name": "name of the configured bridge" Figure out where to store the projects. I started out have the data in linux world (sort of) and linking it the windows with "virtio-fs". That had some serious impact though on git-handling. It seems that virtio-fs interpreted any file-path as lowercase only even if there were uppercase, resulting in git not able to sync files between its repository and the source code (it created a new file-path for me with only lowercase). Then I switch to samba-share instead and this works much better, though (git-actions) is a part that still has low performance with lots of waiting for file-actions. What should be the best way of handling the source/git? Edit to answer myself: Save the project "locally" in windows, then a lot of slow performance is avoided. Then a git-remote sync for backup.
Last updated: 2025-05-08

Post by szotyi on Array of Program ^{CODESYS Forge talk (Post)}
Hi! What is the proper and the easiest way to call programs through looping of array of programs, or pointer of program? instead of calling the programs one by one: prog1(inputX: 11); prog2(inputY: 12); prog3(inputZ: 13); similar like: VAR programsToCall : ARRAY [1..3] OF PROGRAM; END_VAR programsToCall[1] := prog1(inputX: 11); programsToCall[2] := prog2(inputY: 12); programsToCall[3] := prog3(inputZ: 13); FOR i := 1 TO 3 DO programsToCall[i] (); END_FOR Thanks.
Last updated: 2024-08-28

Post by durallymax on Dynamical scaling of bar graph without the bar itself ^{CODESYS Forge talk (Post)}
I'm a fan of the analog indicators from ISA101. To recreate these, I use a number of rectangles that are dynamically sized and colored based on the input configuration. To keep it standard and easy, everything is built around 100px height. Then when instantiated in a frame, it can be resized as needed with the math remaining the same. The math logic is in a METHOD called by the rear most rectangle. These indicators do not use a "filling" bar graph, rather a fixed bar graph with a carrot to track the current value.
Last updated: 2025-06-06

Post by alexgooi on Codesys virtual control redundancy ^{CODESYS Forge talk (Post)}
Dear Forum, I’m currently investigating the possibilities of Codesys virtual control (Linux). The research rig consists of a PC (Debian with real time kernel) with a docker server installed on it. The PC is communicating with a Remote I/O and I have to say the performance is great. The process in the container is running (soft) real time. Currently I’m checking if it is possible to replace physical controllers by remote I/O’s and run the Codesys applications on a docker server. If I’m going into this route the reliability of the server is very important (server down, complete installation down), is it possible to make the server redundant without needing 2 separate containers (including licenses), and maintaining the real time behavior? I’m not only expecting direct answers, if you have any idea or thought they are very welcome. Kind regards Alex
Last updated: 2025-09-03

Post by budd7566 on Text size suddenly changed ^{CODESYS Forge talk (Post)}
Iv been working with a Deep Sea Electronics DSE840 for about 6 months. I have a development version of my program working with a state machine and a basic gui interface. I went to implement CAN and suddenly the text on the gui on the controller is much larger than before. I could flash old versions of my project and the text was the correct size, but if i renamed the project file, the text displayed would be large. The visualization in CODESYS always shows the expected size, but not the controller. I did a fresh install of CODESYS and even a new project with only one text box, I cant get the text size on the controller to match what is displayed in codesys to match. Any advice?
Last updated: 2023-12-09

Post by gseidel on Cam Blending ^{CODESYS Forge talk (Post)}
Hi ustad41, cams can be buffered using the BufferMode input of MC_CamIn. If the end- and start-velocity of two buffered cams are not zero, there will be no stop. Not sure this answers your question. Cams can be changes on the fly by aborting the active cam. Please see [0] for details on switching cams. [0] https://content.helpme-codesys.com/en/CODESYS%20SoftMotion/_sm_cam_switch_between_cams.html Best regards, Georg
Last updated: 2025-09-08

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Last updated: 2024-10-26

Post by jnoyau on Visualisaion while in simulation ^{CODESYS Forge talk (Post)}
Hi all, Im new to Codesys 3.5, and am in the process fo making a visualisation i'd eventually export towards a Wago device. The issue I'm having currently is that when I compile and connect to the simulated program, my simulation won't launch. On the Visualisation tab, all I get is a text message (where previously there was my prepared visualisation) that says "The visualisation awaits a connection. Start the application" One thing to note: I work with Codesys 3.5 in french, so this is a rough translation. And a second: I'm not getting any errors nor warnings about the visualisation tab itself upon compiling Is there a step i'm missing after launching my simulation? Or would it be some really specific issue caused by the way I've set up my program? Thanks, J
Last updated: 2024-07-31

Post by mehakfatima on Need Help Configuring Energy Analyzers via Modbus TCP & RTU (RS-485) in CODESYS 3.5 ^{CODESYS Forge talk (Post)}
Hello everyone, I am currently working on reading data from energy analyzers using Modbus TCP and RTU (RS-485). In my previous software, I used the following method to add slave devices (i have attached the image) and configure registers: Add the Modbus slave device. Configure the communication parameters (baud rate, parity, etc.). Define the registers and their addresses for data retrieval. Now, I am trying to achieve the same in CODESYS 3.5, but I am not sure how to configure the Modbus master, add slave devices, and set up the registers properly. If anyone has experience with Modbus TCP/RTU setup in CODESYS 3.5, I would really appreciate your guidance! A step-by-step explanation or any references/tutorials would be extremely helpful.
Last updated: 2025-03-13

Post by mos89p on CodeSysControlWinV3x64 ^{CODESYS Forge talk (Post)}
Hello Check: on the latest version the location change: If the PLC is started with the "CODESYS Control Win SysTray PLC Control", it runs in the Windows user account "LocalSystem" and therefore the effective working directory is "C:\Windows\system32\config\systemprofile\AppData\Roaming\CODESYS\" or "C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\CODESYS\". An administrator account is required to access these folders
Last updated: 2024-07-11

Post by eschwellinger on Raspberry Pi 5 ^{CODESYS Forge talk (Post)}
At the moment there are some changes on PI OS, which lead to problems with the PI5 an Pi runtime. I would use Arm SL or Arm 64 SL as runtime depending on which OS you have installed. just use the CODESYS Installer and deploy the the Arm runtime.
Last updated: 2024-07-12

Post by nano on Creating, using an external Function. ^{CODESYS Forge talk (Post)}
the Answer is easy, you don't reapecting the codesys-behaviour and pre-request on a dll/so like you like to create. codesys won't load it about the fact that the dll isn't registered in codesys. check this page for more informations: https://content.helpme-codesys.com/en/CODESYS%20Control/_rtsl_extension_extension_sdk.html
Last updated: 2025-05-14

Post by davidbo on How do I stop/start logging in my code using AC_Datalog with composer ^{CODESYS Forge talk (Post)}
I have on my Pi successfully deployed an application to which with composer AC_Datalog is added. It starts logging automatically. I want a Visualization with a start/stop button controlling the logging. That must be easy. How do I do that?
Last updated: 2025-07-07

Post by ranadheer on PHOENIX CONTACT Axioline PLCnext project in CodeSys SodftPLC ^{CODESYS Forge talk (Post)}
Thank you Pernockham, I am using Windows SoftPLC and the device is CODESYS Control Win V3 x64. In the above attached example, the file is Linux-based. This is an external add-on file in the CODESYS installer (CODESYS Control for PLCnext SL). I am trying to implement it without this add-on file.
Last updated: 2025-09-09

Post by dogulas on numeric text box control ^{CODESYS Forge talk (Post)}
Ok, this is how I made a numeric text field: use a Text Field properties -> Texts -> Text := %f (or %d or whatever you need) properties -> Text variables -> Text variable := (your numeric variable) properties -> Input configuration -> OnMouseDown -> Configure: Write Variable Input type := VisuDialogs.Numpad Use another variable (your numeric variable) Min val Max val etc. Please tell me there is an easier way to do this.
Last updated: 2025-10-02

Post by ulad on SPI Communication ^{CODESYS Forge talk (Post)}
Hello. I created a project that uses SPI. This project is working well. I can see with an oscilloscope that the SPI pins are actually changing. But when I resave this project in the IDE and open it later in the system, I see a constant error. What do I need to fix? What am I doing wrong? Thank you.
Last updated: 2023-12-23

Post by oscardm on Problem install codesys 3.5.17 SP 30 with Codesys Installer ^{CODESYS Forge talk (Post)}
Hi, I have a problem with codesys installer: if install a package on the codesys 3.5.17 SP17, and i try to install a package, for example SVN package, the codesys installer report the "digital signature expired error". Anyone have an idea for resolution ? Thanks for your feedback
Last updated: 2024-01-12

Post by jaspergain on SoftMotion Axes issue ^{CODESYS Forge talk (Post)}
Dear, We have an issue with SoftMotion and it's licensing. We don't use SoftMotion in this project. But a SoftMotion license is required by it. The License metrics tell's us there is a -1 Axes. Is there a way to reset this? Delete this? There was a MotionControl device in the project, but we have deleted this. But it stayed at -1. Thanks for you help.
Last updated: 2024-02-29

Post by strannik on Estun servo with codesys ^{CODESYS Forge talk (Post)}
Hello dear colleagues. I have an ESTUN PRONET servo. I'm trying to control via softmotion over the CANopen bus. There is no Ethercat bus in this servo model. In another project,using Ethercat , I controlled four axes. I have problems with ESTUN PRONET servos. A DSP-402 driver mismatch is likely. I would be very grateful for your help in solving this problem.
Last updated: 2024-03-10

Post by cihangur on Application has invalid license metrics. ^{CODESYS Forge talk (Post)}
Hi, I have a "CODESYS Control Standard L" license and I use Ethercat and Profinet in my project. The project works seamlessly with two fieldbuses. However, when I add modbus_Com (Serial) or 1 OPC Tag to the project, the program throws an exception (Application app=Application has invalid license metrics!). My license should support 10*Modbus and 512 OPC Tags. Why might this problem occur?
Last updated: 2024-03-25

Post by kuegerls on CSV Utility SL ^{CODESYS Forge talk (Post)}
Hello, I want to read a CSV file using the CSV Utility SL library, but I encounter an 'invalid_handle' error during initialization. What could be the cause? For my test program see the screenshot. I have purchased a license, and it is also installed on my PLC. Thank you in advance. Best regards, Stefan.
Last updated: 2024-05-13

Post by totorovic on IO-LINK Package - new license model ^{CODESYS Forge talk (Post)}
Hello, I'm using th IDE Combivis studio 6 (codesys based) and I get an error message when I use IO-link. "The license is missing or invalid. The API is running in demo mode." However the package Manager indicates that no licence is required. It used to work, it seems that the free package has become a paying one. Can Codeys confirm this? BR
Last updated: 2024-06-06

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