Post by rkohser on Python Script for Finding "Last saved with" Value ^{CODESYS Forge talk (Post)}
Hi jkilburn, I have the exact same issue and thought I would search a solution on this forum. I see you did not get any answer, did you find a solution on how to extract the last saved version of codesys from the project file ? Roland
Last updated: 2024-01-29

Post by manuknecht on High Cycle Times for SoftMotion_PlanningTask when using AxisGroup ^{CODESYS Forge talk (Post)}
Hi, we did install the real-time kernel patch on the RPI and also performed the additional optimizations including isolating the cores. Changing the configuration of the planning task e.g. running it on a separate core, changing the cycle times and mode from cyclic to freewheeling did not show any improvements.
Last updated: 2024-03-14

Post by fabmorlino on Codesys v3.5 SP11 and Python scripts ^{CODESYS Forge talk (Post)}
Hi, I'm using codesys from a while, but I 'm not able to write phyton scripts. I whould like generate a PC txt file with the content of specific GVL codesys table, or better for my scope: a txt file from a STRUCT defined in CODESYS project. Any kind man could help me with some clue? Thanks Fabrizio
Last updated: 2024-04-05

Post by gatto on variables between two applications ^{CODESYS Forge talk (Post)}
Hello, I'm experimenting with two applications. I was able to start stop applications with the CmpApp library. Currently in my test the variables declared in the first application are not visible and writable in the second. I ask if there is the possibility of having variables that are visible both in the first application and in the second.
Last updated: 2024-06-22

Post by ltrinta on AWS IoT Core connection using AWS certificates ^{CODESYS Forge talk (Post)}
Hi there I want to know if there is possibility to connect a CODESYS application to AWS IoT Core using the certificates owneds by AWS. In the examples of CODESYS using AWS IoT Core library, we need to generate a local certificate and update it to AWS IoT Core. I want to use AWS IoT Core certificates. Regards, Leonardo
Last updated: 2023-09-28

Post by dkugler on Converting hex bytes to float ^{CODESYS Forge talk (Post)}
have a look at UNIONs. With a union you are able to write single bytes to the same adress area which belongs to a float variable at the same time. I like to do a lot of convertions belonging to interfaces and fieldbus in this way, f.eg. word / byte swapping etc.
Last updated: 2024-08-06

Post by talhaali on Data logging from codesys to Microsoft Access ^{CODESYS Forge talk (Post)}
Hi, I want to write data from Codesys to Microsoft access and want to save it as mdb file. There is a way to store data in excel(CSV) file but instead of this, I want to save data in access (mdb) file. Does anyone have a solution? Thanks
Last updated: 2024-04-04

Post by talhaali on Data logging from codesys to Microsoft Access ^{CODESYS Forge talk (Post)}
Hi, I want to write data from Codesys to Microsoft access and want to save it as mdb file. There is a way to store data in excel(CSV) file but instead of this, I want to save data in access (mdb) file. Does anyone have a solution? Thanks
Last updated: 2024-04-04

Post by davidbo on Two licenses have to be installed forgot to enable one license ^{CODESYS Forge talk (Post)}
I have to install "Basic M" and "Visualization M", but it seems that during installation of "Basic M" you have to enable "Visualization S" I assume if you here after want to install my "Visualization M". And I forgot to enable "Visualization S" How do I fix that?
Last updated: 2026-02-02

Post by rjwkerkhof on IIot Libraries SL --> Web Socket Client SL Pong issue ^{CODESYS Forge talk (Post)}
Dear all, I am developing a Web Socket Client in Codesys 3.5 using the Web Socket Client SL library to retrieve data from a third party. Connecting and reading works fine however after 40 seconds the connection gets interrupted by the server due to keepalive ping timeout. After discussion with third party it seems that the Web Socket Client SL library replys to the Ping request of the Web Socket server BUT does not add the "Application data" = 4 bytes in the body of the Pingframe to the Pongframe. Therefor the server does not recognize the Pongframe send by the Web Socket Client SL library and automatically disconnects. Is this a known issue with the libary or am I doing something wrong? Is there a workaround to add the 4 bytes manually to the Pongframe before replying it to the server? Thanks in advance, Roy
Last updated: 2024-04-09

Post by codesysjupiter on Library Error ^{CODESYS Forge talk (Post)}
Hello, everyone. How are you? Please help me with my library error. When I open the CODESyS project, the error message is Could not open library “#loDrvEthernet. (Reason: The placeholder library ToDrvethemet’ could not be resolved.) I tried to find solution to fix this . and the help teach me to run this command "Update placeholder <iodrvethernet> to the newest version:" Is this right ? But I couldn't find where I input this command and how to run it. Or any other solution , please ?</iodrvethernet>
Last updated: 2024-04-12

Post by mozed on Bug Device login ^{CODESYS Forge talk (Post)}
Good morning, The problem I encounter is very disturbing, when I try to connect to my project, it asks me to put in my username and password, which I do. However, I cannot connect and it restarts. the window to rewrite my identifiers. However it is the correct identifier and password I do not understand why. When I try to put false identifiers there strangely it tells me that these are not valid identifiers. There is something what can I do? Sincerely
Last updated: 2024-06-11

Post by ekristoffe on Beispieldateien finden / Inhalt der Packages ^{CODESYS Forge talk (Post)}
Hello @eschwellinger, Why not using one of those 2 folders: C:\ProgramData\CODESYS C:\Users\Public\Documents\CODESYS The main reason is depending on the company and the user right, the end user may not have the access to use those folders. Also having a non version dependent folder may help if the end user uninstall a previous version and forgot all its sample project where in this previous version installation. Thanks.
Last updated: 2023-11-24

Post by garmusd on Raspberry Pi 5 GPIO not working. ^{CODESYS Forge talk (Post)}
I paid money for the RPi runtime because the Product Description says that GPIO is supported. It is also written in the Versions that since 4.11 RPi5 is supported. And I use 4.13. Nowhere is it mentioned that GPIO is still not supported... It's a pity that the Codesys developers still can't find a way to fix it. Are there plans for when it will be fixed or are the developers too weak? Just wondering, is there anyone with a working GPIO? Can you share the details of your system?
Last updated: 2024-09-27

Post by aniket-b on Multiple function blocks are not executing at the same time in ladder logic ^{CODESYS Forge talk (Post)}
I have two ethernet Ip drives and created Function Blocks for different motions tasks. I am using same FB for both the drives. When I try to execute the relative move start command on FB for both the drives it is not working. However, if I add 1ms second delay between the execution of each drive it is working. Also when I change the rung order it is working for the first drive in the rung. what could be the wrong here?
Last updated: 2024-03-12

Post by superjojo2002 on Licensing info not available. ^{CODESYS Forge talk (Post)}
I checked it using the very same docker container version like colleague moon and the command returned root@nt0001c02c5533:/# cmu -x cmu - CodeMeter Universal Support Tool. Version 7.60c of 2023-Aug-09 (Build 5625) for Linux/ARMHF 64-Bit Copyright (C) 2007-2023 by WIBU-SYSTEMS AG. All rights reserved. Result: 0 CmContainer(s) listed. (CodeMeter not running) Please consider that we intend to license a codesys ARM64 SL in a docker container.
Last updated: 2024-03-20

Post by nickpoon on SysProcessCreate stopped working after SP21? ^{CODESYS Forge talk (Post)}
I'm going through the process of updating the CODESYS Project a machine to 3.5 SP21 (old version was 3.5 SP20). One function that stopped working when upgrading was SysProcessCreate. I need to run a .exe file that is located in C:\Program Files\MQTTStream. Some initial searching suggested that there are new security rules that prevent the SoftPLC from reading/writing files to outside of its Device folder (located here - C:\Windows\System32\config\systemprofile\AppData\Roaming\CODESYS\CODESYSControlWinV3x64\24FD6770) Relocating files helped fix my JSON file reader/writer functions (which were failing previously), but not the case for SysProcessCreate. I've even attempted to just run window's cmd.exe and with: pszCommandLine = 'cd /d C:\Windows\System32\config\systemprofile\AppData\Roaming\CODESYS\CODESYSControlWinV3x64\24FD6770\PlcLogic\MQTTStream & sift-proxy.exe --grpc_uri="https://grpc-api.siftstack.com" --api_key="xxxxxxxxxxxxxxxxxxx" mqtt-client --broker_ip=10.0.10.101 --broker_port=1883 --config_file="mqtt_telemetry_config.json" --username Plantd --password 1234 --stream_metrics --storage_path="sift-proxy-logs"' I have not been able to find a lot of documentation on this, and I suspect the new update may have created a bug for SysProcessCreate. Any help would be greatly appreciated
Last updated: 2026-02-02

Post by rcanfield on Code Coverage and Test Manager ^{CODESYS Forge talk (Post)}
I am exploring the possibility of measuring test coverage using the Test Manager and Profiler tools. It appears there are some significant limitations. Has anyone been successful trying to use these tools? Here are my observed limitations. Am I misunderstanding anything? * Profiler only works for one "run cycle". Even warm resets will clear the coverage calculations. Thus, all tests would have to manually reset values when complete to prevent contamination to other tests. * It is not possible to see which statements were/weren't executed. One would have to use the flow control tool which cannot be used in conjunction with the Profiler, and must be viewed in realtime. * The profiler control cannot be automated and therefore must be executed through a manual procedure. Thank you!
Last updated: 2024-07-11

Post by rcanfield on Code Coverage and Test Manager ^{CODESYS Forge talk (Post)}
I am exploring the possibility of measuring test coverage using the Test Manager and Profiler tools. It appears there are some significant limitations. Has anyone been successful trying to use these tools? Here are my observed limitations. Am I misunderstanding anything? * Profiler only works for one "run cycle". Even warm resets will clear the coverage calculations. Thus, all tests would have to manually reset values when complete to prevent contamination to other tests. * It is not possible to see which statements were/weren't executed. One would have to use the flow control tool which cannot be used in conjunction with the Profiler, and must be viewed in realtime. * The profiler control cannot be automated and therefore must be executed through a manual procedure. Thank you!
Last updated: 2024-07-11

Post by peterned on Array to String ^{CODESYS Forge talk (Post)}
max. string length in Codesys is 255 chars. It's not possible to cram 20,000 things in a string. If you need to send the data to another device, send the whole data[] array (as byte array, without doing anything to it) and extract the information on the other end. As each struct member has a fixed size (81 bytes, as per you declaration), this will be easy. To save some resources, consider declaring string lengths - e.g. if the max possible length for key is 10 chars, declare it key: STRING(10); and it will occupy 11 bytes instead of 81
Last updated: 2024-07-20

Post by andrebrandt on FB string and naming ^{CODESYS Forge talk (Post)}
Thank you so much. This worked. Waht im trying to do here is to automatically tag each sensors, valves and so on. There is a preatty nasty tag system i working on. "_320" is not alloved. I can have a tag "+4f=320.004-RT001V" In codesys I want to build the FB in folders. -4f | --320 | --001 This is the system structure. Inside here is all of the sensors and so on. But with Codesys, I cannot tag this like this. So what I'm trying to do now is to Make a folder for the building "4f" and one for the system "320", and a POU _001. Is there a way in init to get folder names?
Last updated: 2024-10-01

Post by dvmaris on Control for Linux ARM64-User Management issue ^{CODESYS Forge talk (Post)}
I'm trying to work with Codesys Control for Linux ARM64 SL 4.18.0.0 on a Toradex Verdin NXP iMX8MP. I have the runtime installed and operational as well as Codemeter lite 8.40.7141.503 (arm64). I'm running 3.5.20.60 and when "Scan Network" I see the Verdin popup. When I try to connect to it, the "mandatory use of the user management" popup shows...which makes sense. I click YES and enter user information and click OK. It immediately displays a "No device is responding to the scan request" popup. The IDE can see the Verdin in the scan...so this popup does not make sense to me. I thought maybe it was a read only issue but I've made all partitions and paths RW. Has anyone experienced this? Can anyone tell me where it is trying to write user data?
Last updated: 2026-02-11

Post by eschwellinger on Persistence Manager: Config File not found? ^{CODESYS Forge talk (Post)}
..strange just switching of this device without graceful Linux OS shutdown? Reset orgin on the device tree and a new download of the application will bring it up and running again but sure then the persistent data are for sure lost.
Last updated: 2024-11-02

Post by ton on Length of string and Array of bytes ^{CODESYS Forge talk (Post)}
When you use a string value 0 will be the end terminator. Everything after this will not be in the string. I guess byte 2394 has a value 0.
Last updated: 2025-04-01

Post by gseidel on MC_Phasing state explenation ^{CODESYS Forge talk (Post)}
Hi kenth1973, no, we do not have this kind of information on internal variables. iPhasingState has been removed and is no longer present in current versions of SoftMotion. Best regards, Georg
Last updated: 2025-12-17

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