Post by qkkk on Device Scan ^{CODESYS Forge talk (Post)}
Hello all, I have developed a custom I/O driver in CODESYS that communicates via a Unix Domain Socket. In my DeviceDescription.xml, I have set up the following: <scan supported="true"> <scanfbinstance fbname="IOScanDevice"> The goal is to allow the user to scan for connected I/O modules from the CODESYS GUI ("Scan for Devices") and automatically populate the device tree with detected submodules.</scanfbinstance></scan> The function block IOScanDevice is implemented in the driver library and added to the main device's FB instances. However, when I initiate the scan from the GUI, nothing appears to happen the function is not executed. Is there an example project or driver (open source or from CODESYS Forge) that demonstrates a working custom scan implementation?
Last updated: 2025-05-26

Post by edson-bueno on IFM Controller Connection Issue ^{CODESYS Forge talk (Post)}
Hi, Could you please send an print of your ethernet adapter info? Ip addr Subnet Mask Default Gateway Also, check if the gateway service is active in your windows. Win+R > services.msc > Look in the list CODESYS Control Win V3 x64 Gateway OR CODESYS Gateway V3 Hook up the M12 code D into the ETH port, supply the controller, it should apperars to you. Make sure when you try to connect with the controller, the target of your project has to match with the controller. Otherwise, click on the device in the devices tree > Communications Settings tab > Device > Options > And disable "Filter Network Scans by Target ID". Good luck.
Last updated: 2025-05-29

Post by jeroenaero on Targetvisualisation full screen with CmpTargetVisu settings ^{CODESYS Forge talk (Post)}
Hi, How can i display targetvisualization in full screen on the target device? I installed Targetvisu For Linux SL 4.16.0.0 on target device which contains Raspberry PI 64bit PIXEL desktop. When i connect my PLC program to the remote targetvisu, the targetvisu displays for 60% horizontally. We contacted CODESYS and they said it is a bug. they had a workaround, and with the settings below added to the file /etc/codesysvisualization/CODESYSVisualizationTV.cfg, the targetvisualization display for 100%, but with the taskbar at the top. VisuClient.BestFit=1 ;VisuClient.ScaleTypeIsotropic=0 VisuClient.FillWholeBackground=1 [CmpTargetVisu] WindowPositionX=0 WindowPositionY=0 WindowSizeWidth=1280 WindowSizeHeight=800 WindowType=2 How can we let it display fullscreen without taskbar?
Last updated: 2025-07-24

Post by timvh on Codesys 3.5.18.60 – Application Loss and Persistent Data Corruption ^{CODESYS Forge talk (Post)}
Which device do you use? Does this have persistent memory (e.g. NVRAM) available? Maybe first ask your PLC vendor about the possibilities and how they advice to use persistent variables? If you have no NVRAM available, CODESYS will store the variables in a file when the device gracefully shuts down. But on an abrupt power failure, this is not possible. If you have no NVRAM and you want to use persistent variables, then consider using a UPS. In this case when the power is lost, the UPS can keep the power on the PLC which then can gracefully shut down. Alternatively use the Persistence Manager to store the variable values in a file e.g. only on change. See: https://content.helpme-codesys.com/en/CODESYS%20Application%20Composer/ac_pm_overview.html
Last updated: 2025-08-26

Post by bruceae on Special Characters ^{CODESYS Forge talk (Post)}
Hello, I am fairly new to the codesys environment. Is there a reference chart that I can look at in order to write special character in a string? The Special characters that I need to inclue inside the string are as follows; Null Bell Carriage Return I have a TCP_Write command that I am sending to an external device. In order for that device to function properly it needs to see the string with the null and bell characters as the header, followed by the desired command, terminated with the carriage return. Any reference sheet or how to write this in the actual string would be greatly appreciated.
Last updated: 2025-08-26

Post by royw on Profinet Library für C# ^{CODESYS Forge talk (Post)}
Hallo, ich weiß nicht ob ich hier richtig bin und ob es überhaupt möglich ist ... Ich suche eine Möglichkeit ein Profinet Device mit Record Read und Write anzusprechen. Eigentlich brauche ich nur sehr wenige Kommandos um unser Device zu konfigurieren. Das bedeutet setzen der MAC Adresse und einer Seriennummer. Das würden wir gern aus einem C# Programm herus machen. Nun sind wir auf der Suche nach einer Bibliothek o.ä. . Da man es ja auch aus Codesys heraus machen, dachte ich mir, gibt es eventuell eine DLL o.ä. die man dafür nutzen könnte. Wie gesagt wir wollen keine Realtime Abfragen der zyklischen Daten sondern lediglich Record read/write. Hat da jemand einen helfenden Hinweis ? Schon mal vielen Dank im Voraus
Last updated: 2023-12-22

Post by dhumphries on Codesys device configuration ^{CODESYS Forge talk (Post)}
First make sure the programming laptop and HMI are both on the same subnet. For example if the IP address of the HMI is 192.168.1.125 with a subnet mask 255.255.255.0 set your laptop IP to 192.168.1.120 with a subnet mask of 255.255.255.0. Make sure the cables are fully connected (the ethernet port on my programming laptop will click once but the cable is not fully seated.) Make sure the HMI is powered on, try pinging the device from a command prompt, if you can't ping the HMI there is a network issue that has to be resolved first.
Last updated: 2023-12-30

Post by bfunk on Wago 750-8101 (mit Codesys V3) als Profinet device ^{CODESYS Forge talk (Post)}
Moin, ich habe da ein Problem und komme einfach nicht weiter... Ich moechte eine Wago 750-8101 (mit Codesys V3) zu einem ModBus TCP Slave und einem Profinet slave machen. ModBus habe ich hinbekommen, Profinet bekomme ich einfach nicht hin. habt ihr das evtl. einen hilfreichen Tip fuer mich? Programmiert wird mit Codesys V3.5 SP19 Patch 2 Auf dem Zielsystem (PFC100) ist die Zielsystemversion 4.6.0.0 Das es nicht optimal ist PN und ModBus TCP auf einer Schnittstelle zu haben ist mir bewusst. Wollte aber erstmal ModBus und Profinet zum laufen bekommen bevor ich das Profinet auf die 2. Ethernet-Schnittstelle bringe. /etc/CODESYSControl_User.cfg [SysSocket] Adapter.0.Name="br0" Adapter.0.EnableSetIpAndMask=1 Adapter.1.Name="br1" Adapter.1.EnableSetIpAndMask=1 ist eingetragen. so sieht der Status fuer das PN-device aus. Anbei ein Screenshot.
Last updated: 2024-01-16

Post by dhumphries on Not able to see input data coming from eip adapter on codesys ^{CODESYS Forge talk (Post)}
Does the device have a green icon next to it when the PLC is running? If not you have some kind of communication problem, wireshark may be picking up some data but the scanner may not be configured correctly to receive the data. Check the T>O and O>T bytes and make sure they match on both the scanner and adapter. I've had very little success loading a .eds file and having the configuration work without some manual configuration. If you have a green icon, have you enabled the device to always update variables?
Last updated: 2024-03-02

Post by mp9876 on Device logon problem following fresh install ^{CODESYS Forge talk (Post)}
Yes it had been the case I believe as I have seen that message regarding they were not the same. I had update the device though to match them and that still did not fix the problem. I gotta say I wanted to get out of that situation and attempted a lot of things and then I did two things at the same time that fixed my problem: Wiped the 64 bit version and installed the 32 bit version Installed latest SP20 I wish I knew which one of these actions fixed the problem but now I gotta catch up on this IDE learning; it's been quite a learning experience I have to say! Thank you very much for your time and advice; much appreciated!
Last updated: 2024-03-19

Post by timvh on Version management ^{CODESYS Forge talk (Post)}
This depends on what you want to achieve with installing the latest version and how you manage your projects and repositories. Maybe you also want to update your device (right click on it to update) or maybe your device is depending on certain versions of libraries (go to the library manager in your project and download the missing libraries). An option is also to first create a projectarchive of the current project you have before you install a new version of CODESYS. Then you can open this projectarchive in the new CODESYS version. Especially if you install the latest version of CODESYS in a Sandbox.
Last updated: 2025-12-15

Post by fefefede on Error C0521 - unknow compiler ^{CODESYS Forge talk (Post)}
Hello, i'm a new user of Codesys and student of ST program for PLC. Since today for a few new projects i have two error code C0521 and i can't solve. I also just try to update device and search library but nothign resolve. How can i fix this? Thanks
Last updated: 2023-09-02

Post by dgrard on Camera RTSP Feed ^{CODESYS Forge talk (Post)}
Hello Is it possible to view a camera RTSP feed in a visualization? It seems as though the browser element doesn't support this and we are trying to replicate an example using the ActivX element with no luck. We are using the Windows Control Win x64 device with a camera connected via LAN. If it is possible, can you provide some instructions please. Thank you
Last updated: 2023-10-17

Post by charleskentyfz on (no subject) ^{CODESYS Forge talk (Post)}
I have created an EtherCAT slave code and fixed two slaves (IDs written in the 0xF050 object dictionary). The module IDs are 0x1 and 0x101, respectively. It can be scanned normally in TwinCAT, but when scanning in CODESYS, it reports an error. Why is this happening？text in the second pic means 'device cannot be found in repository'
Last updated: 2024-07-07

Post by tk096 on Some 'pathetic' errors in SoftMotion program ^{CODESYS Forge talk (Post)}
Hi, I suppose that you are referring to the error code "SMC_FB_WASNT_CALLED_DURING_MOTION"? Starting of Softmotion version 4.15.0.0 the instance path of the function block that has not been called is logged into the device log. This might help you to identify why it has not been called.
Last updated: 2024-07-18

Post by abauza on Image Pool using in other libraries ^{CODESYS Forge talk (Post)}
Hi I have done some tests and i realised that it's an issue with the visualizator simulator because i uploaded the program to a device and tried to see on the Web browser and I see correcctlu the images of the image pool of the library. I post this for anyone that have the same problem.
Last updated: 2024-08-20

Post by dengsberg on Disable Communications to 'Modbus_Server_COM_Port' from the logic ^{CODESYS Forge talk (Post)}
I have a serial Modbus RTU communicating to the Slave device. But when the control system is not in Run there is no power applied to one of the Modbus Devices. Can I enable / disable the communications to that Modbus Slave in the code based on my running mode, so I don't get all the errors?
Last updated: 2024-08-29

Post by csu-chris on No file found ^{CODESYS Forge talk (Post)}
I'm having trouble getting started with the SysFile library. I tried copying and running the code found here: https://forge.codesys.com/forge/talk/Engineering/thread/f17c3d0e64/ Every time I try to run the file handle pointer returns: 16#FFFFFFFFFFFFFFFF <dereference of="" invalid="" pointer=""></dereference> I can see the file when I look in the Device -> Files window Any idea what I'm doing wrong?
Last updated: 2024-10-15

Post by bjarne-pagaard on Newly created texlists wont appear in the selection dropdown ^{CODESYS Forge talk (Post)}
I just had the same problem in 3.5 SP19 Patch 6. Trying to use a textlist for Combobox Integer element. The textlist cannot be selected in the IDE, and is not found when manually entering the name. The textlist is copied to the device, but is not used. Can confirm, that copying an existing textlist and renaming it does work.
Last updated: 2024-12-16

Post by trusty-squire on Strange problem with the ‘MC_SetPosition’ function ^{CODESYS Forge talk (Post)}
Just a stab in the dark, but you might want to check the Dynamic Limits (accel, decel, velocity, jerk) in the Codesys SoftMotion device configuration, as well as checking similar limits on your servo drive? Are you seeing any errors, or does the MC_SetPosition FB get marked as complete?
Last updated: 2025-01-09

Post by clarenced on Multiple applications on one device sharing variables. ^{CODESYS Forge talk (Post)}
Sounds feasible, but how would I create this object so that both applications would use the same instance of it. If this did work, it's still not really the solution I am looking for as it would mean mapping every variable I want to use on the hmi through this object vs I was hopping all the GVL variables would be available.
Last updated: 2025-02-20

Post by gseidel on Dynamic limits invaild ^{CODESYS Forge talk (Post)}
Hi jbu0105, which error doe you get, exactly? Is it error 11008, SMC_MOVE_INVALID_DYNAMICS? (It might help if you check the "Log" tab in the PLC device and copy the exact error.) Please double-check whether the inputs Velocity, Acceleration, Deceleration, and Jerk of MC_MoveCircularAbsolute have correct (positive) values. Best regards, Georg
Last updated: 2025-04-07

Post by lbouchard on CANOpen SIL2 error: UNSAFESTACK_NOT_OPERATIONAL ^{CODESYS Forge talk (Post)}
Hello, Working in 3.5 SP11 32 bit and using the 3S CANopenSafety Slave 3.5.11.0 library on an IFM CR711S. The 3SCSSD.CANOpenDevicesSIL2 function block keeps throwing "UNSAFESTACK_NOT_OPERATIONAL" Additionally, the Status of the device gives "There was an error accessing an I/O parameter". Any ideas on where my issues may lay? I have not found any good documentation that would explain the issue.
Last updated: 2025-05-23

Post by fkoenig on Codesys Control Win 64 3.5.21.0 KNX unaufgelöste Referenzen ^{CODESYS Forge talk (Post)}
Hallo Herr Schwellinger, ich habe in Codesys die KNX Datei nach ETS exportiert und in der ETS eingefügt. Leider lässt sich in der ETS nicht die physikalische Adresse zuweisen. Den Programmier Button wird im KNX Stack betätigt, doch leider wird diese nicht quittiert und die physikalische Adresse zugewiesen. Woran kann dies liegen? Anbei habe ich Ihnen der Device Log. Viele Grüße, Koeni
Last updated: 2025-09-01

Post by onstage on Unable to add EL6751 to Control RTE V3 on W11 IoT LTSC using Eng. V3.5 SP21 ^{CODESYS Forge talk (Post)}
For reference, it was just me being unfamiliar with EtherCAT in CoDeSys. Anyone with knowledge who would have opened the ScanResult screenshot would have identified that the preceding EK1100 was the device missing in the library. Bottom line - Do something else for a while and then get back at it with fresh eyes!
Last updated: 2025-09-08

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