Post by nixola on Exception handler return value purpose in _CODESYS 3.5 ^{CODESYS Forge talk (Post)}
Hi, I was trying to figure out how to correctly handle system exceptions in a CODESYS project, but either the documentation falls short, or I'm unable to find the proper docs. I know I can register a function as an exception handler via Task Configuration > System Events > Add Event Handler, which will create a function with the correct interface; I am, however, unable to figure out what the returned DWORD is supposed to be, if anything. Is the interface for the exception handler documented and, if so, where can I find it?
Last updated: 2026-08-31

Post by struccc on Wish: CODESYSControl.cfg - again ^{CODESYS Forge talk (Post)}
Before creating this topic, I was browsing the search results for CodesysControl.cfg - many results, and I remember very well, it's a problematic issue for a long time. To summarize: there were many requests for documentation on this file - the most comprehensive reply is: https://forge.codesys.com/forge/talk/Runtime/thread/ebbf851a3d/#eb85 Hi, not really, this is covered by the manual which you get if you use a runtime toolkit which is not free of charge. Maybe we need to extract the config file part from that documentation if that is possible. BR Edwin I am not sure how much is this relevant, since we buy SL License directly from CODESYS... I think it is a reasonable demand, to get documentation on the configuration entries affecting the documented behaviour of the runtime system and it's components The actual reason I bring up this issue again can be read here: https://forge.codesys.com/forge/talk/Runtime/thread/febad3cc40/#0e12 but mostly my frustration about noticing some new, unknown and undocumented entries in my configuration file. Again. And this happens a lot recently. Just some examples: Changes with SysFile - and mandatory use of IEC path Introduction of Mandatory user management File transfer service now disabled by default SysProcess - allowed commands The above mentioned CmpApp parameters... And finally (Regaridng windows install): With the newer versions, the installation directory (together with the configuration file) tends to hide itself to some super silly location under the roaming profile data of local system account. I am not sure if this change was documented somewhere, but was a very unpleasant one. Someone could please explain the reason and the concept of the introduction of this release specific directories (I am sure, there is a good reason) - how to use them properly? - How to re-introduce user configuration (to preserve configuration data between versions)? - How to do version - to version migrations properly? - How to keep old version of runtime available and ready to start with it's original configuration and application? - ... Therefore, the lack a regularly updated description of CodesysControl .cfg , including all the configuration entries, together with their default values for different runtime versions is really a big deficiency.* This should be done for all components storing or just seeking data from this file... (Maybe there is such thing but I failed to find???) It is regularly causing trouble when introducing a new version (together with the long awaited bug fixes and enhancements), what has changed it's default behaviour for security or other practical reasons. I agree this is very important, and it is logical to change the default options: But it must be documented historically, and make it easily available, so we can prepare better for the upgrade of the runtime. Forge talk is a great source, but not very practical for this kind of documentation purposes... Thanks in advance for CODESYS staff 🙏🙏🙏 (Ps.: It would look rather silly, if some members of the user community prepares this documentation on a Forge Wiki page... Or??? Should we?)
Last updated: 2024-11-21

Post by rohitk on CoDeSys libraries for BECKHOFF EL7332/EL7342 ^{CODESYS Forge talk (Post)}
Hi, step 1 : go to beckhoff website, go to required IO card, go to download option in that, go to XML donlowad and download the file Step2 : Go to codesys software, go to tools - deviceRepository - install that downloaded file.
Last updated: 2023-08-24

Post by eschwellinger on How to configure CODESYSControl_User.cfg in order to use a specific network card for OPCUA Server ^{CODESYS Forge talk (Post)}
check this faq section here: https://faq.codesys.com/plugins/servlet/mobile?contentId=102137886#content/view/102137886
Last updated: 2023-08-25

Post by yr00 on OPC UA datasource low read frequency ^{CODESYS Forge talk (Post)}
Hello everyone, I am trying to test the OPC UA client feature in Codesys. My setup is the following; I have a Codesys simulation/ visualization running on Control Win V3. My OPC UA server is hosted on a Siemens 1518 PLC using PLCSim Advanced. The setup is completely virtual so there are no really PLCs. Everything is on my laptop. Writing data from the Codesys simualtion to the server is very quick. I have a PLC program running on another 1500 PLC which reads data from simulation via the server, and changes in the simulation (e.g. button pressed) appear within hundreds of miliseconds if not tens of miliseconds in my PLC program. However, when it comes to reading data from the OPC UA Server by Codesys, it taks around 1-2s. I connected a UAExpert client and it gets update very quickly so I am fairly sure the problem is with Codesys. I have tried changing the update rate in datasource -> General and Diagnosis, but it doesn't seem to have an effect. Do you guys have any suggestion on what I can do?
Last updated: 2023-08-29

Post by roundex on CSVReaderInit returns error : INVALID_HANDLE ^{CODESYS Forge talk (Post)}
I got same issue but managed to get it to work again by downgrading the Runtime. Here's my specs: CODESYS V3.5.19.0 Runtime Linux SL 4.7.0.0. CSV Utility SL 1.1.0.0 (Licensed IIoT libraries SL) I tried Runtime 4.8.0.0. and 4.9.0.0 but both result in INVALID_HANDLE error.
Last updated: 2023-08-30

Post by roundex on CSVReaderInit returns error : INVALID_HANDLE ^{CODESYS Forge talk (Post)}
Could you please give me an example where to select new path in plc. Right now my csv files are placed into /home/user/csvfiles
Last updated: 2023-08-30

Post by janderson on Ethercat scan for devices not picking up EL7041 as a softmotion axis ^{CODESYS Forge talk (Post)}
I have a beckhoff EL7041-1000 rev 21 in my ethercat bus but it wont correctly create a softmotion axis unless i manually insert the device. scan for devices gives me an el7041-1000 without an SM3 axis.
Last updated: 2023-09-02

Post by eschwellinger on Ethercat scan for devices not picking up EL7041 as a softmotion axis ^{CODESYS Forge talk (Post)}
Add existing version (with SM drive) - without scan - disable under expert settings in the slave the revision check.
Last updated: 2023-09-03

Post by richard-wang on When Keyboard Key is in Hold, then Webvisu is extreme slow and latent ^{CODESYS Forge talk (Post)}
Hi Tyro Did you resove your problem? I have the same issue. BR Richard
Last updated: 2023-09-05

Post by ulvis on How to do horizontal scroll in CFC editor? ^{CODESYS Forge talk (Post)}
CFC (page oriented) editor does vertical scroll by mousewheel and zoom by ctrl + mousewheel, allright. How do I do the horizontal scroll (pan) using the mousewheel? (I do not want to drag the scrollbar, I am sure you have guessed by now.)
Last updated: 2023-09-06

Post by nyee on Project compiling error in Simulation mode ^{CODESYS Forge talk (Post)}
Hi, I have a similar issue - we have been using codesys V3.5.16.20 Do you have any suggestions or confirmation that this will work with a different version of codesys and Pi extension
Last updated: 2023-09-07

Post by aguado on Setting up the "Visual Studio Code" debugging environment (using .NET debugging) for use with the ScriptEngine API in Python. ^{CODESYS Forge talk (Post)}
Hi, did you ever get this to run? Best Till
Last updated: 2023-09-12

Post by transmin01 on PCAN serial "No CAN driver found" ^{CODESYS Forge talk (Post)}
Second question is, how do I determine the correct network ID for my Canbus config in Codesys? I have 2 CANbus ports on the target PC. Regards Trevor
Last updated: 2023-09-14

Post by timvh on Troubles with using CAN API ^{CODESYS Forge talk (Post)}
In the example project, you can see that a CAN.CANAreaReceiver is used which has an VAR_IN_OUT reference to a RECEIVER_AREA structure. This structure has a dwIdStart and dwIdEnd to filter a range of ID's and process them through the referenced msgProcessor.
Last updated: 2023-09-19

Post by eschwellinger on PCAN serial "No CAN driver found" ^{CODESYS Forge talk (Post)}
which system are you using on the target system? If this is Linux this is different - in compare to use it on Control Win
Last updated: 2023-09-20

Post by sedoerr on Check For Open Dialogs On Client ^{CODESYS Forge talk (Post)}
You need to create a function around this function to check the dialogs you use in your program. That's the way i have done it.
Last updated: 2023-09-26

Post by rschwager on description about the build compiler definition ^{CODESYS Forge talk (Post)}
Hi CODESYS moderators and user! Is there any description about the compiler definition in property of application? e.g.: CANOPEN_NO_HEARTBEATPRODUCING Is there more definition? Best regards Robert
Last updated: 2023-09-26

Post by arnog on Master&Slave Program in 4 Axis CNC Project ^{CODESYS Forge talk (Post)}
I am also looking for the right solution. Also saw a virtual axes would be better to steer x1 and x2
Last updated: 2023-10-01

Post by anhkdv on Motion FB Error ^{CODESYS Forge talk (Post)}
Hi! I'm a newbie. I'm doing a project for Delta Robot using Codesys and got this error when trying to move in a dynamic coordinate system. This error occurs when I use FB MC_MoveLinearRelative and FB SMC_GroupWait
Last updated: 2023-10-08

Post by aott33 on Webvisu NO load ^{CODESYS Forge talk (Post)}
I put in a support ticket request for this issue since I need this application to be running reliably for my customer's application. Hope to hear back from support soon to troubleshoot this process.
Last updated: 2023-10-09

Post by sivakov on Change the default ssh port ^{CODESYS Forge talk (Post)}
Of course there is! =) just edit file/etc/ssh/sshd_config and restart ssh service. but you'll lose the possibility of runtime management through "update Linux", so there enother question - how to change default port in codesys it-self?
Last updated: 2023-10-11

Post by chris12345 on IO-Link Lizenz ^{CODESYS Forge talk (Post)}
Moin, IO-Link läuft nur 30 Minuten im Demo Modus. In meinem Fall, brauch ich zusätzlich zur "CODESYS Control for Raspberry Pi MC SL" diese Lizenz :- https://store.codesys.com/de/codesys-io-link-master-for-el6224-sl.html Gruß Chris
Last updated: 2023-10-11

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