Post by zer0g on Modbus Client Request Not Processed
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Hi, Thank you for your suggestion but the problem is fixed after I disabled and enabled the network adapter from Windows settings.
Last updated: 2024-05-30
Post by viksym on Get text from textlist
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Thank you, but sadly I already tried this and it also doesn't work. It's not doing anything.
Last updated: 2024-06-03
Post by codesysdave on Using globals without a prefix (bMyTag vs GVL.bMyTag)
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Over 5 years later, you helped me tremendously. Thanks. And great kitty picture.
Last updated: 2024-06-04
Post by fajean on CODESYS control on RPi starts, shortly runs, then exits
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4.11 appears to solve the problem. Thanks for your help. I had first installed the 64-bit version of RPiOS, but looking at various posts and the product's page on the store which only lists 32-bit compatibility, I downgraded to the 32-bit version. I did this before trying 4.11, and it did not solve the problem. Thus my working system is 32-bit, and I am wondering if I can go back to 64-bit or not. An 64-bit OS is not listed as compatible on the store's web page, but when installing there actually is a 64-bit version listed (automatically chosen when installing on 64-bit, but otherwise greyed out). Is 64-bit supported and the website is out-of-date, or is that some kind of work-in-progress?
Last updated: 2024-06-13
Post by nano on Persistent variable storage
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use the persistence manager. with the persistence-manager, you're aböe to define how, when and where you store your data
Last updated: 2024-06-16
Post by mos89p on Data source and safety PLC
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it works only for me when i specify an IP adress in communication tab
Last updated: 2024-06-17
Post by bruno-roth on Codesys access to DICTIONARY OBJECTS of ethercat (CoE ) Servo Drive
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You could use the FBs ETC_CO_SdoWrite and ETC_CO_SdoRead
Last updated: 2024-06-19
Post by kuegerls on SysProcessExecuteCommand2 and CANopen Device
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Hello, CODESYS Control is running on my RevPi, and my system communicates over a CANbus with a master using the ConnectCan module (Slave - CANopen Device). The communication works perfectly fine so far. However, as soon as I call a Python script with "SysProcessExecuteCommand2" that creates a CSV file and executes without errors, the master does not adopt any changes to the Transmission Process Data Objects (TPDOs). I don't quite understand what one has to do with the other, and perhaps someone can help me with this. Here is my script call: SysProcess.SysProcessExecuteCommand2(pszCommand:='python /home/pi/test.py', pszStdOut:=sCMDOutput, udiStdOutLen:= SIZEOF(sCMDOutput), pResult := ADR(eResult)); Thank you in advance! Best regards, Stefan
Last updated: 2024-06-20
Post by kuegerls on SysProcessExecuteCommand2 and CANopen Device
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I am now executing the process in a separate task with lower priority, but unfortunately, the connection to the master is still interrupted.
Last updated: 2024-06-21
Post by nano on variables between two applications
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use an gvl for interact variables beetween apps and threads. this should work
Last updated: 2024-06-23
Post by rafael on Wbm/runtime and visualization login
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Solved, there is a configuration inside the WBM where I can disable this login option (config>ports config)
Last updated: 2024-06-25
Post by ranadheer on Control Win SL licensing
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Hi johnlee and jeffgamsby Is Control win SL is a SoftPLc Extension SL
Last updated: 2025-10-18
Post by fari on Configure J1939 I/O Mapping via Scripting
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Hi everyone, With the latest version of Codesys, it’s now possible to import DBC files directly into the J1939 Manager, which is great. However, I’m trying to achieve the same thing programmatically and can’t find any scripting functions related to import_dbc or any host_parameter that would let me configure PGNs and signal mappings automatically. So far, I’ve managed to add the J1939 Manager and an ECU, and I can pass the DBC database to it, but I’m stuck when it comes to adding the signals. Has anyone figured out if this can be done through scripting? (Attached is an illustration of what I am trying to accomplish programmatically). Thanks in advance.
Last updated: 2025-10-24
Post by eschwellinger on search runtime 4.9.0.0 for pi 3
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runtime could always be in latest version. just keep everything in CODESYS stable and deploy the latest runtime. This will work.
Last updated: 2025-10-25
Post by vtec35 on search runtime 4.9.0.0 for pi 3
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i m not familiar with installation/firmware/version/runtime, juste the machine worked fine before, and now kaput lol
Last updated: 2025-10-26
Post by wchin on Passing EtheNetIP adapter device into a Function Block to access it's IO
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We are creating helper function blocks for our VFD(EtherNetIP). How should I set it up so that I can pass the device into and out of the Function Block so that ideally I can access the IO of the device by devicename.channelname. So something like for example we have a VFD with a start bit that is in the ControlWord channel and a SetVelocity that is a channel. And we want to create a Function Block called StartVFD. So I declare something like: FUNCTION_BLOCK StartVFD VAR_IN_OUT device: ioDrvEthernetIP.RemoteAdapter; END_VAR VAR_INPUT velocity : REAL; So in the code it would look something like device.SetVelocity := velocity; device.ControlWord.6 := True; We have a pretty basic eds file for our VFD and can update it if necessary. Thanks in advance.
Last updated: 2025-10-28
Post by wchin on Passing EtheNetIP adapter device into a Function Block to access it's IO
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We are creating helper function blocks for our VFD(EtherNetIP). How should I set it up so that I can pass the device into and out of the Function Block so that ideally I can access the IO of the device by devicename.channelname. So something like for example we have a VFD with a start bit that is in the ControlWord channel and a SetVelocity that is a channel. And we want to create a Function Block called StartVFD. So I declare something like: FUNCTION_BLOCK StartVFD VAR_IN_OUT device: ioDrvEthernetIP.RemoteAdapter; END_VAR VAR_INPUT velocity : REAL; So in the code it would look something like device.SetVelocity := velocity; device.ControlWord.6 := True; We have a pretty basic eds file for our VFD and can update it if necessary. Thanks in advance.
Last updated: 2025-10-28
Post by wchin on Passing EtheNetIP adapter device into a Function Block to access it's IO
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We are creating helper function blocks for our VFD(EtherNetIP). How should I set it up so that I can pass the device into and out of the Function Block so that ideally I can access the IO of the device by devicename.channelname. So something like for example we have a VFD with a start bit that is in the ControlWord channel and a SetVelocity that is a channel. And we want to create a Function Block called StartVFD. So I declare something like: FUNCTION_BLOCK StartVFD VAR_IN_OUT device: ioDrvEthernetIP.RemoteAdapter; END_VAR VAR_INPUT velocity : REAL; So in the code it would look something like device.SetVelocity := velocity; device.ControlWord.6 := True; We have a pretty basic eds file for our VFD and can update it if necessary. Thanks in advance.
Last updated: 2025-10-28
Post by miltos on licensing question
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Greetings to all, I'm working on a webvisu project on control win V3 x64 runtime, and have purchased 3 licenses for my application. -Codesys Control Standard M -Codesys Visualization L -Codesys Communication M I have them installed on a Codesys usb dongle When I try to download the program, a login error window appears with the message "No valid license found for the webvisualization". The control win v3 communicates with 3 plc, and have enabled communication over codesys V3 communication by adding one datasource for every plc in the datamanager. If I remove the data manager from the project, the rest of the visualisation can be downloaded normally. Do I need to purchase another License and which one? Please find attached the software metrics and the error screen.
Last updated: 2025-10-31
Post by davidbo on How to stop dhcpcd and use SysSockSetIpAddressAndNetMask to set address?
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The reason for why CODESYS halts was a CODESYS watchdog exception. 'sudo ip' takes a long time.
Last updated: 2025-11-04
Post by eschwellinger on Stepper motor control with (SM_Drive_RaspStepper_direct)
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..the missing part is which Softmotion version is installed. Check it in the CODESYS Installer and update it to latest version.
Last updated: 2025-11-10
Post by adam on Get/Set I/O Address Mapping of DeviceObjects in python Script
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Found out.Its script engine bug . Update to script engine version 4.2.0.0. and problem solved
Last updated: 2025-11-17
Post by timvh on Using a raspberry pi and NVLs to log variables outside of Codesys
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Yes, this will work.
Last updated: 2025-11-21
Post by msirotkin on EtherCAT status errors
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Hello, I'm trying to understand the reason for the many errors on the EtherCAT master status page. If we set the cycletime to 1ms we see a lot of rxerrors and lostframes, but the send and recive times are quite good (see attachement). And the status of the EtherCAT bus is good (no other errors, all is green, slave has no errors) But when we set 2ms cycletime the lostframe errors are gone, but periodically increses rxerror counter (see attachement). The questions is, what do these errors actually mean and what we can do to get gid of them? Linux RT, imx8, Codesys runtime for ARM 3.5.21.10, Ethercat 4.10 Thanks
Last updated: 2025-11-25
Post by imdatatas on Error: C0138: No matching 'FB_Init' method found for instantiation of VisuClientObjectMgr
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Unfortunately, the "C0138: No matching 'FB_Init" method found" error is a nightmare for CODESYS V3.5 SP21. I'm not sure if anything has been done about this or if anything will be fixed. I've encountered the same issue many times, and it was only resolved by completely uninstalling SP21, deleting all related files and folders from my computer, and then installing SP19. So, I've given up on using SP21 and switched back to SP19patch7. Here are some previous posts regarding the "C0138: No matching 'FB_Init" on SP21 of Codesys. https://forge.codesys.com/forge/talk/Visualization/thread/0763d6ca8e/ https://forge.codesys.com/forge/talk/Motion/thread/9074005bf4/
Last updated: 2025-11-28
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