Post by kthomas on Cant login to Rpi4 but can see it in codesys communications settings. ^{CODESYS Forge talk (Post)}
This is what I see in codesys window. And here is with the netstat command on the pi
Last updated: 2024-06-23

Post by nano on conformation about the CODESYS Extends SL and CODESYS SDK ^{CODESYS Forge talk (Post)}
as an oem i can tell you, extension sl isn't the sdk. its more an hard restricted part of it with much missing parts. why u may ask this?
Last updated: 2025-11-11

Post by romrot on I don't know if this is where I should ask this, but I'm trying to get a Codesys OPC UA Client set up with a Kepware OPC UA Server ^{CODESYS Forge talk (Post)}
Trying to create a Data Source under Data source manager, but I'm having issues with security. I get "BadUserAcessDenied" I don't know if there is something special I need to do on the Kepware server to make this work or what.
Last updated: 2023-10-19

Post by jvfred on Display problems on Weintek's cMT3092x HMI ^{CODESYS Forge talk (Post)}
Hello, I have the same issue with my cMT display. I know it's a communications issue with my Eurotherm E+PLC400 PLC using the Codesys V3 driver. Were you ever able to figure out what the problem was and if so, what was your fix. Any help would be greatly appreciated.
Last updated: 2023-12-01

Post by abjha1998 on Converting UINT into bytes and converting 2Bytes into UINT ^{CODESYS Forge talk (Post)}
Hi, I have been working on Codesys V3.5 with PFC200 controller and Can Gateway 750-658. I want to convert the incoming CAN data from bytes into UINT and for outgoing data bytes to UINT. Does anyone has experience with this kind of data? I tried few different ways but it doesn't seem to be working.
Last updated: 2023-12-07

Post by dengsberg on Check Connection Status of the OPC-UA Server for Data Source Manager with OPC-UA Client ^{CODESYS Forge talk (Post)}
I am using the Data Source Manager with OPC-UA Client to get data from another CodeSys application in the same Project. How can I check in the PLC_PRG structured text if the connection is ok or not?
Last updated: 2024-09-07

Post by bolopg on MODBUS TCP REGISTERS CODESYS V3.5 ^{CODESYS Forge talk (Post)}
Hi. I have a problem with MODBUS TCP MASTER. I treid to read HR in range 3027-3037 but I cannot read them. I have modbus slave chanel with offset 0x3037. I checked what I read and it looks like I am reading HR in range 1-10. What I am doing wrong.
Last updated: 2024-10-11

Post by jeroenaero on CodeSys Raspberry pi I2C driver not found ^{CODESYS Forge talk (Post)}
I don't have a multiplexer so it very weird that it connects with that multiplexer. If i do a I2C scan on the PI terminal, i only get the device addresses 0x48 and 0x51. One for the ADC and one for RTC. I will try again with your libraries
Last updated: 2024-11-12

Post by dom4u on Using PEAK CAN PCIe card (IPEH-004040) with Codesys Control RTE V3 ^{CODESYS Forge talk (Post)}
The problem is that newer PeakCAN cards are with CAN FD support and SJA1000 compatibility isnt mentioned anymore on website. anyway, is it possibile to add a seperate entry for it in: [CmpSJACanDrv] ? Edwin, can you give us a hint how to format it?
Last updated: 2024-12-16

Post by timvh on PLCOpenXML Export/Import with Visualisation ^{CODESYS Forge talk (Post)}
A Task is a standard IEC 61131-3 object, so logically that you can export the VISU_TASK. A visualization is no standard IEC 61131-3 object, so not compatible with other IEC tools. Just use the standard export / import functionality. These files are not IEC compatible and can only be used in CODESYS. But these do support visu objects.
Last updated: 2025-01-09

Post by jddaigle on Webvisu not supported due to missing browser feature HTML5-Canvas ^{CODESYS Forge talk (Post)}
Hello, I'm running the lastest version of Codesys 3.5 SP20 Patch 5, with the lastest version of Chrome. And I still get this "Webvisu not supported due to missing browser feature HTML5-Canvas" fallback with a quite simple webvisu containing some buttons, images, textboxed and a grid. What can I do? is that a configuration to change? Thanks!
Last updated: 2025-01-24

Post by ronaldcom-pac on Gif in WebVisu ^{CODESYS Forge talk (Post)}
I am looking for some help with using Gifs in the WebVisu of codesys 3.5.18.40 as the model we tried with ladder logic does not animate the Gif and leaves as the first image of the Gif. Is there a way for ST or LL for it to be animated?
Last updated: 2024-02-08

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 manuknecht on High Cycle Times for SoftMotion_PlanningTask when using AxisGroup ^{CODESYS Forge talk (Post)}
Hi These issues occured using a Raspberry Pi 4. I also repeated the experiment with codesys control for Windows, which results in much lower cycle times. With up to 3 ms, I still think they are fairly high given they should run at 2 ms and don't require complicated kinematics. The effect of higher cycle times for slower movements also prevails.
Last updated: 2024-03-13

Post by rajesh008 on i can't declear the address in GVL - codesys SP19 Patch5 ^{CODESYS Forge talk (Post)}
The “_AB AT %IW0:word; ” if i called the value then im getting this error. like below "the declartion of the variable with an address assignment cannot be used in a PRG or GVL with the attribute 'subsequent'" This is happening when the GVL is selected in Redundancy Configuration. if i un-select the address declaration is working fine
Last updated: 2024-05-13

Post by vtec35 on search runtime 4.9.0.0 for pi 3 ^{CODESYS Forge talk (Post)}
Hello everyone, following corrupted data on the SD card of our Pi3B+ provided with a machine, we reinstalled a CODESYS image for Raspberry Pi, but we cannot find the 4.9.0.0 runtime that is compatible with the project. Currently, the machine is on 4.1.0.0, and we tried a more recent version 4.13.0.0, but there are error messages. Thanks in advance.
Last updated: 2025-10-24

Post by dat422 on OPC UA Enum Issue ^{CODESYS Forge talk (Post)}
Hi everyone, I’m using CODESYS V3.5 SP22 with the Communication Manager to run an OPC UA server. I have a problem with enums: when I view them in a client like UaExpert, only the last enum member is shown, and it has the wrong value. Has anyone seen this issue before or knows what might cause it? Thanks!
Last updated: 2026-03-27

Post by mait-tim on Unknown Type ^{CODESYS Forge talk (Post)}
Hello, Im working with EPEC PLC's and working on the HMI and i'm running into the following errors: Unknown Type ISOImages.TargetContainer.TDS (and similars) I cannot locate the error and the source position is the visutalisation manager where i cannot find anything related to this type. Im working with: Codesys V3.5 SP18 patch 3 and i cannot update since the hardware does not allow for newer SP versions
Last updated: 2026-04-03

Post by baldeep on Raspberry Pi 5 ^{CODESYS Forge talk (Post)}
Hi, though i am aware of the fact that Codesys doesnt not support Raspberry Pi 5 still i tried. Codesys Installation : worked Codesys Starting : worked but right after start it stopped. with Start Runtime it starts again but stops automatically after 5 seconds is Codesys planned for Raspi 5?! Regards... Singh
Last updated: 2023-12-06

Post by tama00 on GPIOs not running with Raspberry Pi 4 (and SPI connection) ^{CODESYS Forge talk (Post)}
Hello everyone, I have a working SPI connection (with transferExt) between a Raspberry master with Codesys and an ESP32 slave. I would also like to use a few GPIO pins. Is there a problem with using SPI AND GPIOs? Environment: Raspberry Pi 4+ with Raspian from Oct 23 Codesys V3.4 SP19 Patch 5 with Runtime Version 4.10.0.0 Device: GPIOs B+/Pi2 My problem: The status is displayed as “GPIOs : not running”. And also during mapping the message “The bus is not running. The values shown are perhaps not actual”. However, the variable changes that I make in my program are displayed under “Current Value”. In the Logic Analyzer, the pin toggles during transmission with small intervals of +-4us (seems to be a cyclical disorder, but I don't know where exactly it could be coming from). This applies to pins that I actually use (output) but also to the other GPIOs (not used). With GPIO 4, the line remains permanently high. Attached is a screenshot from the Logic Analyzer. Channel 1,3,5 were GPIO pin 26, 22, 17 Would be very grateful for help. Best regards
Last updated: 2024-05-06

Post by r-niedermayer on OPC UA subscriber not operational ^{CODESYS Forge talk (Post)}
Hi. As far as projects in "old version"s are concerned, these can be upgraded to newer versions at any time. To do this, the device must be updated accordingly and the copilers and library versions must be adapted. You can find instructions on how to proceed in the online help/FAQ: https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_changing_compiler_version.html https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_cmd_update_device.html See also 4.3.22.4 "How to open an Example Project" within the following pdf for more details on the single steps: https://forge.codesys.com/lib/counit/tickets/_discuss/thread/3e991befbc/ca97/attachment/Public%20FAQ-v13-20240610_075228.pdf Regaring your OPCUA connection state always showing just "DISABLED", without knowing both sides of the assembly in detail, one can only approach the problem theoretically. We can give a chekclist on how to proceed: Fist, please recheck the communication settings in the OPC UA connection function block to ensure that the server URL, endpoint URL, and other settings are correct and match the configuration of the OPC UA server. Verify that the OPC UA server is running and accessible. -You can try to connect to the OPC UA server using a separate client, such as UAExpert, to ensure that the issue is not related to the OPC UA server itself. Test the security settings in the OPC UA connection function block to ensure that the correct security policy and certificate are selected. If you are using a dynamic connection to the OPC UA server, probe that the connection settings are correctly configured and that the OPC UA client is able to establish a connection to the OPC UA server. Also, please loock into the log files for any errors related to the OPC UA connection function block, these should be listet there. The log files may also provide additional information about the issue and help you to further troubleshoot the problem. FYI - Please see https://content.helpme-codesys.com/en/CODESYS%20Communication/_cds_obj_data_source_communication_opc_ua_server.html: Her you can finde the Communication settings via OPC UA Server -> layout Browse Live Server: The client connects to the server and detects the existing variables and types. From Information Model The client reads the data structure (layout) of the OPC UA Server from the information model set here and as a result receives the information about available variables and types. A connection to the server is not required. The list contains the information models installed in the OPC UA Information Model Repository. "Read Connection" Settings from IEC Variable (option set): - The connection settings used by the device are not read here from the dialog, but at runtime from the IEC variable specified here. - For this possibility, please see the Using a Dynamic Connection to an OPC UA Server (https://content.helpme-codesys.com/en/CODESYS%20Communication/_comm_use_dynamic_opc_ua_server_comm_settings.html) The settings for the communication of a Client-data source to an OPC UA Server can also be dynamically configured from the IEC code and can also be changed at runtime. For such a purpose, a structure is available in the DatasourceOpcUAServer library (For a description of the OPC UA Server, there is one included in the standard installation of CODESYS, https://content.helpme-codesys.com/en/CODESYS%20Communication/_cds_encrypt_communication_data_sources_opc_ua_client.html)
Last updated: 2024-11-04

Post by damian177 on Problem with downloading OPC UA tags by Data Source Manager ^{CODESYS Forge talk (Post)}
Hi, In Codesys V3.5 SP20, using Data Source Manager I am trying to connect to the OPC UA server and receive tags from it. The connection is ok, but the Codesys have a problem with downloading Tags group. The window (downloadingTags.jpg in attachement) never stop. After waiting for a while, I disconnect the connection and only the Server group remains downloaded, with OPC UA server diagnostic data (and this is read in Codesys). Of course, I tried connected via another OPC UA client : UaExpert , and everything works as it should, all tags are downloaded (Uaexpert.jpg screen). Has anyone on the forum encountered the OPC UA client configuration in Codesys? Is it possible to manually request the appropriate tags from the OPC server for reading in Codesys?
Last updated: 2024-09-03

Post by valenting on Can't use new licensing with Raspberry Pi ^{CODESYS Forge talk (Post)}
Hi, I'm using Codesys control for Raspberry Pi in the latest version (4.11.0.0) When I try to install a license with the new application-based licensing, I have an error "returncode 403046401" (using codesys SP18) I updated to codesys SP20, and now I get the following error: "The selected conainer [0]: SN=..., Version=1.18, Chip=0, Rev=0 does not fit to your ticket. Please select a suitable one." The license I'm trying to install is a Codesys Control Basic L license, with a Codesys Visualization L option, according to the needs of my application. What can I do to activate my license ?
Last updated: 2024-04-22

Post by starmaxou on How to download dependencies packages for CODESYS Control for Raspberry Pi SL ? ^{CODESYS Forge talk (Post)}
Hi everyone, I'm trying to install the CODESYS Control for Raspberry Pi SL package. The computer with CODESYS software is offline for security reasons. So, I downloaded the package on another computer and installed it manually. But this package has dependencies packages: CODESYS.Control SL Extension Package, V4.0.0.0 CODESYS.Control SL Deploy Tool, V4.10.0.0 As I said, the computer with CODESYS is offline. I cannot use the package installer to search for these packages. I did not find them in Codesys Store with another computer. Do you know where to find and download them? Thank you in advance for your help!
Last updated: 2024-05-30

Post by durallymax on Persistent Vars ^{CODESYS Forge talk (Post)}
Looking for a better way to manage Persistent Variables. We tend to have local vars in our FBs that need persistence through downloads as the systems are updated/altered on a regular basis. Retain would suffice if we had an easy mechanism to backup and restore like we can with Persistent variables and recipes. Although not having to remember that step with Persistent variables is preferred. We're running into issues with persistent storage capacity (WAGO PFC200) using the Persistent variable list (and adding all instances). It appears there are many ways to handle this, some with recipes, some with files, others with application manager. Is there a solution that exists that is as simple as declaring as Persistent and managing elsewhere? Or do we need to move onto periodically writing CSVs?
Last updated: 2025-09-22

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