Post by sachem on SysFileGetTime problem ^{CODESYS Forge talk (Post)}
Good morning. I'm working with a Weidmuller controller using Codesys. My project use OPC-UA to communicate an application in my pc with the controller. Yesterday, I installed the license of the controller and test it, and the communication works perfect. I use the communication with anonymous login, and works fine. But, hours later, the anonymous login don't work, and the controller only allows connection via OPC with username and password. Someone know why this happend? Thanks
Last updated: 2024-04-09

Post by valenting on Problem with Licenced Software Metrics ^{CODESYS Forge talk (Post)}
Hi, I tried with another project, using codesys SP20 with the latest visualization installed, I can install the application on my device but it doesn't work I get an exception "invalid license metrics" and the app won't run See attached the metrics in project and allowed by license, and the logs What am I supposed to do ? Everything is in the newest version and the values are lower than allowed and nothing works...
Last updated: 2024-04-26

Post by hyplcmotion on The element of type 'VisuFbElemImage' could not be updated. Reason: Index was outside the bounds of the array. ^{CODESYS Forge talk (Post)}
Hello, I’m encountering the same issue. I only receive these errors when downloading to the PLC—there are no errors during the build—after upgrading to CODESYS 3.5.21.10. Is there any known fix or recommended solution? Visualization seems running ok, no PLC log error. Visualization: Error: The element of type 'VisuFbLabel' could not be updated. Reason: Source array was not long enough. Check srcIndex and length, and the array's lower bounds. Visualization: Error: The element of type 'VisuFbElemSimple' could not be updated. Reason: Source array was not long enough. Check srcIndex and length, and the array's lower bounds. Visualization: Error: The element of type 'VisuFbElemSimple' could not be updated. Reason: Source array was not long enough. Check srcIndex and length, and the array's lower bounds. Visualization: Error: The element of type 'VisuFbElemImage' could not be updated. Reason: Source array was not long enough. Check srcIndex and length, and the array's lower bounds. Visualization: Error: The element of type 'VisuFbElemSimple' could not be updated. Reason: Source array was not long enough. Check srcIndex and length, and the array's lower bounds. Visualization: Error: The element of type 'VisuFbElemSimple' could not be updated. Reason: Source array was not long enough. Check srcIndex and length, and the array's lower bounds. Visualization: Error: The element of type 'VisuFbElemImage' could not be updated. Reason: Source array was not long enough. Check srcIndex and length, and the array's lower bounds. Visualization: Error: The element of type 'VisuFbElemButton' could not be updated. Reason: Source array was not long enough. Check srcIndex and length, and the array's lower bounds. Visualization: Error: The element of type 'VisuFbElemButton' could not be updated. Reason: Source array was not long enough. Check srcIndex and length, and the array's lower bounds. Visualization: Error: The element of type 'VisuFbElemSimple' could not be updated. Reason: Source array was not long enough. Check srcIndex and length, and the array's lower bounds.
Last updated: 2026-01-26

Post by jeindhoven on Deploying to raspberry pi 5 hangs ^{CODESYS Forge talk (Post)}
Hi CoDeSys support forum, hope that this is the correct place to ask this. Might be double as i am new to Codesys and dont know all terminology. I am trying to test Codesys with a virtual plc on a raspberry pi 5. Already figured that i need Tools -> Deploy Control SL, enter Communication parameters. Codesys says "Connected". Then tab "Deployment", there i select "CODESYS Control for Raspberri Pi SL" and "4.16.0.0 (all)". Click "Install" and the gui turns grey and unresponsive. The titlebar says "Untitled1.project - CODESYS (Not Responding)" as well. Restarting Codesys and checking shows no package was installed. How to deploy the runtime? Thank you in advance for your time. Edit: After some patience, an error showed up: "Error when sending ssh heartbeat: Session operation has timed out" "Error installing codesyscontrol" Any pointers to what remote command might have failed, or log of some sort, would be welcome. Software versions: Codesys version 3.5.21.10 Raspberry pi 5 (deployment machine): $ uname -a Linux raspberrypi 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023 aarch64 GNU/Linux $ lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 11 (bullseye) Release: 11 Codename: bullseye $ apt list --installed | grep openssh-server openssh-server/oldstable,now 1:8.4p1-5+deb11u3 arm64 Development machine: $ uname -a Linux 2B 6.1.0-35-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.137-1 (2025-05-07) x86_64 GNU/Linux $ lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 12 (bookworm) Release: 12 Codename: bookworm VirtualBox Version 7.0.26 r168464 (Qt5.15.8) Virtual OS: Windows 10 Pro 64-bit (10.0, Build 19045) .NET version 4.0.30319.42000
Last updated: 2025-06-22

Post by tk096 on High Cycle Times for SoftMotion_PlanningTask when using AxisGroup ^{CODESYS Forge talk (Post)}
Hi, under this circumstances the performance of a Raspberry Pi 4 should be sufficient to run a Softmotion robotics application. A closer look at the project would be required. Maybe you could contact the codesys support? Usually it is recommended to run the planning task cyclically every 2ms with task priority of 0 on a dedicated core. In the task configuration you can have a look at the average and maximum execution time of the planning task. You could use the function block SMC_TuneCPKernel (https://content.helpme-codesys.com/en/libs/SM3_Robotics/Current/SM3_Robotics/POUs/AdministrativeConfiguration/Computation/SMC_TuneCPKernel.html) to define suitable values for the parameters 'fSyncBufferDuration' and 'fPlanningInterval'. However, as previously mentioned, the performance of a Raspberry Pi 4 with realtime patch should be sufficient. The 'fPlanningInterval' parameter specifies the maximum planning step width in seconds. The cycle time of the planning task should not permanently exceed this value. A higher value reduces the computational effort, but can lead to a violation or no full utilization of the set limit values for velocity, acceleration and jerk. From a starting value of 0.016 seconds, the value should be increased gradually until the performance is acceptable. The parameter 'fSyncBufferDuration' specifies the size (in seconds) of the buffer between the planning and fieldbus task. The cycle time of the planning task must not exceed this value at peak times (this will lead to the error SMC_CP_QUEUE_UNDERRUN). A higher value can compensate for peaks in the cycle time of the planning task. At the same time, however, this also increases the latency for executing interrupts and aborting movements.
Last updated: 2024-03-22

Post by tcarlbom on Read tag values using external program ^{CODESYS Forge talk (Post)}
This is my first time posting in this forum and I am new to codesys. I am a fullstack developer and I am trying to figure out how the following. What would be the best approach to create a own/custom tag browser? Either directly in codesys ide or using a separate custom program (perhaps a winforms application). 1.a. Shall I parse the .project xml file to get a list of all tags in the project? 1b. Shall I use python scripting in codesys ide to get a list of tags? Once one have selected some tags. These tags shall be exposed to a python program which will be acting as a edge computer. It’s fine to be able to import a file. 2a. I found a library called codesys plchandler which (as I understand) acts a rest api server. Is this correct? If so, can I query the api from a custom python script, ie can query what tags exist in project and or read tag values? My research so far. From earlier projects I know that using opc ua would be perfect for this but from my opinion it’s bloating the plc since it’s resource intensive. So opc ua is not an option. Codesys automation server is neat. But I don’t want to rely on some cloud services and subscription based pricing. There seem to be several interesting codesys libraries like mqtt, tcp server and NVL sender which would help me expose plc tags. But all have a common problem. One have to manually write what tags which will be used in these function blocks. I want a similar experience like “selecting” tags in the opc ua or the codesys tracing, ie a tag browser.
Last updated: 2024-06-28

Post by jami on Reading multiple lines from csv file ^{CODESYS Forge talk (Post)}
Hello, i am trying to read multiple lines from csv file with caa file library and oscat. I have wrote 7 lines in the csv with separation '$R$L'. In my "extracting values" part I check line feeds and chars. After that I convert my buffer to string with oscat but I'm only able to read the first line from the csv. No matter if I even change start position where I start converting the buffer, I only get the first line. Here's my code for the reading and extracting value parts: 4: (*Reading the file*) fileread.hFile := filehandle; fileread.pBuffer := ADR(buffer); filesize1:=SIZEOF (buffer); fileread.szbuffer:=filesize1; fileread.udiTimeOut := 100000; fileread(xExecute := TRUE); IF fileRead.xDone THEN iFilesize:=TO_INT(fileread.szSize); writestate:=3; fileRead.xExecute := FALSE; END_IF 5: (*Extracting values*) //here i check the number of line feeds and chars. It works WHILE i < ifilesize DO c:=buffer[i]; IF c= 10 THEN IF lineindex<=99 THEN lineIndex := lineIndex + 1; END_IF ELSIF c <> 13 THEN IF charIndex <= 1000 THEN charIndex := charIndex + 1; END_IF END_IF i := i + 1; END_WHILE // Here i convert the buffer to string and transfer it to filelines:ARRAY[0..99] of string[254]. trig(CLK:=BUTTON); IF trig.Q THEN fileLines[i2]:=oscat_basic.BUFFER_TO_STRING(PT:=ADR(buffer), Size:=TO_UINT(fileread.szBuffer), start:=TO_UINT(bufferStart), stop:=TO_UINT(filesize1)); i2:=i2+1; bufferstart:=bufferstart+80; END_IF If anyone has idea how to read multiple lines, it would be nice. Even if you have example codes that work, that would help a lot.
Last updated: 2025-07-18

Post by nizrahel on OpC UA server on Raspberry Pi 64 SL runtime ^{CODESYS Forge talk (Post)}
Hi all! I'm working on an home project using a Raspberry Pi 3 device with Codesys for Raspberry Pi 64 SL runtime. I would like to create the HMI interface with Siemens WinCC Unified (or Advanced) configuring the Raspberry as OPC UA server. I tryed everything, but I didn't find the way to let the OPC UA connection works using UaExpert. I tryed to use anonymous connection, authenticated connection and the ip address instead of the server name in the path connection. There is no way to connect to the OPC UA server and I was asking myself if this feature is really supported for the runtime version used. Another strange thing I noted, is that is not possible to quickly create an OPC UA certificate in the Security Screen, as show in any tutorials. I have correctly created the Symbol Configuration enabling the OPC UA feature. I attach to this topic some printscreen of the actual configuration (sorry for the italian language interface, but I didn't find the way to switch to english). Thank you very much in advance for your support and advices!
Last updated: 2023-12-03

Post by kurtk on dynamic modbus devices ^{CODESYS Forge talk (Post)}
I am CODESYS neophyte getting my wheels on. My goal is to re-platform an existing PLC application written in 61131 ST I've got the majority of the code/variables in a compilable form - excluding all the IO and comms nuances I am not sure whether this the right forum An important functionality which I implemented on the other platform was totally dynamic modbus devices... Most configurations I have come across impose static MB configs in which all configured devices MUST be present and functional... I have monkeyed around with MB enough to know that herding a half dozen MB cats into a working config can be tricky. I just do them one at a time and dynamically turn them on/off in whatever combination is convenient with ID, IP, baud, parity etc being runtime tweakable. I am totally curious whether this is possible with codesys, or whether its device configuration corrals one into a static cage which requires re-building the code to support flexible variations. Best regards
Last updated: 2025-08-19

Post by kurtk on runtime dynamic modbus devices ^{CODESYS Forge talk (Post)}
I am CODESYS neophyte getting my wheels on. My goal is to re-platform an existing PLC application written in 61131 ST I've got the majority of the code/variables in a compilable form - excluding all the IO and comms nuances I am not sure whether this the right forum An important functionality which I implemented on the other platform was totally dynamic modbus devices... Most configurations I have come across impose static MB configs in which all configured devices MUST be present and functional... I have monkeyed around with MB enough to know that herding a half dozen MB cats into a working config can be tricky. I just do them one at a time and dynamically turn them on/off in whatever combination is convenient with ID, IP, baud, parity etc being runtime tweakable. I am totally curious whether this is possible with codesys, or whether its device configuration corrals one into a static cage which requires re-building the code to support flexible variations. Best regards
Last updated: 2025-08-19

Post by beavel on Feature Request: Text List Formatting ^{CODESYS Forge talk (Post)}
Hi everyone, I'm working on a multilingual help system within a CODESYS visualization project and have run into a limitation with the current text list (.tlx) functionality. Right now, text list entries only support plain text, which makes it very difficult to format longer help texts in a readable way. For example, I’d like to: Use bold headers and larger font sizes for section titles Display variable names or keywords in italics Avoid having to split content into dozens of separate entries just to apply different styles This becomes especially unmanageable when supporting multiple languages — duplicating layout logic across languages is not scalable. Would it be possible to implement a Markdown text functionality for text list entries ? For example: #Header ##Sub-header 1.ordered 2.list 3.fun 4.times Alternatively, is there any existing workaround or planned feature that allows for styled text blocks without fragmenting the content? Thank you in advance and have a nice day :)
Last updated: 2025-09-23

Post by mrkm-dic on CODESYS: Combining Master Redundancy with EtherCAT Ring Topology – Is it Supported? ^{CODESYS Forge talk (Post)}
Hello, I would like to ask whether it is technically supported (and practically achievable) to combine CODESYS Master Redundancy with EtherCAT ring (loop) redundancy in the same system. System setup CODESYS version: CODESYS 3.5.21.40 CODESYS Control SL for Weidmuller u-OS-4.12.2.0 Controllers (Masters): Weidmuller UC20-M4000 ×2, configured as Active / Standby using CODESYS redundancy EtherCAT Slaves: Weidmuller UR20-FBC-EC ×3, supporting EtherCAT ring / line break detection Topology: EtherCAT ring (loop) Main question Is it officially supported to use: ・CODESYS PLC/Master redundancy (Active/Standby) and ・EtherCAT ring topology (for cable redundancy) at the same time? Expected behavior Our expectation is: ・When the Active PLC fails, the Standby PLC becomes Active ・The Standby PLC then takes over the role of EtherCAT Master ・EtherCAT communication is re-established ・I/O control continues after reinitialization (a short interruption is acceptable; no strict bumpless requirement) We do not expect completely seamless / zero-cycle switchover, but we want to understand: ・Whether this combination is supported by design ・Or whether there are known limitations or restrictions when EtherCAT ring mode is used together with Master redundancy Clarification At this stage, the question is mainly about feasibility and support, not about a specific error message yet. Any official guidance, limitations, or real-world experience would be greatly appreciated. Thank you in advance.
Last updated: 2026-02-05

Post by scoob on ModbusFB - Slow Response Time ^{CODESYS Forge talk (Post)}
Hello, I have been trying to use the ModbusFB functions so I can put some code into libraries, but it seems to be very slow for me. I have a Modbus device with 100ms registers. I previously setup 10 channels in the 'traditional' Modbus Slave with channels and mappings - and set a cyclic trigger at 100ms - this worked fine. I then tried the ModbusFB example, and setup reading the same 10 blocks of modbus addresses, copying the example and putting all of the requests into an array and triggering the requests sequentially. I timed how long the requests are taking to get round to each one, and it is around 1s 450ms. How do I speed this up to match the cyclic time? IF NOT(init) THEN init := TRUE; // Set the required IP address: ipAddress[0] := 192; ipAddress[1] := 168; ipAddress[2] := 1; ipAddress[3] := 10; // Pass the required IP address to the clinet FB: client_NetworkSwitch.aIPaddr := ipAddress; client_NetworkSwitch.udiLogOptions := (ModbusFB.LoggingOptions.ClientConnectDisconnect OR ModbusFB.LoggingOptions.ClientReceivedValidReplies); // Try to connect the client client_NetworkSwitch(xConnect:=TRUE); // Configure all the channels to read connecting them to the client: portStatus_Request(rClient := client_NetworkSwitch, uiStartItem := 4096, uiQuantity := 32, pData := ADR(portStatus), udiReplyTimeout := udiReplyTimeout); portSpeed_Request(rClient := client_NetworkSwitch, uiStartItem := 4352, uiQuantity := 32, pData := ADR(portSpeed)); flowControl_Request(rClient := client_NetworkSwitch, uiStartItem := 4608, uiQuantity := 32, pData := ADR(flowControl)); linkUpCounter_Request(rClient := client_NetworkSwitch, uiStartItem := 5888, uiQuantity := 32, pData := ADR(linkUpCounter)); txPacketCounter1_Request(rClient := client_NetworkSwitch, uiStartItem := 8192, uiQuantity := 100, pData := ADR(txPacketCounter1)); txPacketCounter2_Request(rClient := client_NetworkSwitch, uiStartItem := 8292, uiQuantity := 28, pData := ADR(txPacketCounter2)); rxPacketCounter1_Request(rClient := client_NetworkSwitch, uiStartItem := 8448, uiQuantity := 100, pData := ADR(rxPacketCounter1)); rxPacketCounter2_Request(rClient := client_NetworkSwitch, uiStartItem := 8548, uiQuantity := 28, pData := ADR(rxPacketCounter2)); txErrors_Request(rClient := client_NetworkSwitch, uiStartItem := 8704, uiQuantity := 64, pData := ADR(txErrors)); rxErrors_Request(rClient := client_NetworkSwitch, uiStartItem := 8960, uiQuantity := 64, pData := ADR(rxErrors)); // Trigger all client requests initially FOR clientRequestsCnt := 0 TO (SIZEOF(clientRequests)/SIZEOF(clientRequests[0]))-1 DO pClientRequest := clientRequests[clientRequestsCnt]; pClientRequest^.xExecute := TRUE; END_FOR // Prepare sequential trigger / control of client requests. clientRequestsCnt := 0; pClientRequest := clientRequests[clientRequestsCnt]; END_IF // Call the client to do request processing: client_NetworkSwitch(); // Now we trigger client request sequentially ... IF NOT pClientRequest^.xExecute AND NOT pClientRequest^.xDone AND run AND client_NetworkSwitch.xConnected THEN pClientRequest^.xExecute := TRUE; END_IF // .. and check result/error IF pClientRequest^.xExecute AND run AND client_NetworkSwitch.xConnected THEN IF pClientRequest^.xDone THEN // Prepare next trigger of client request (a rising edge of xExecute) pClientRequest^.xExecute := FALSE; IF clientRequestsCnt < SIZEOF(clientRequests)/SIZEOF(clientRequests[0])-1 THEN // next client request clientRequestsCnt := clientRequestsCnt + 1; ELSE clientRequestsIterationCounter := clientRequestsIterationCounter + 1; clientRequestsCnt := 0; END_IF pClientRequest := clientRequests[clientRequestsCnt]; END_IF END_IF I did try a semi-coded way using the IoDrvModbusTCP library, and setting the slave com settings, then 10 commands and 10 requests, then using a TP on xDone as a pause, before triggering another request - this is time the delay is around 120ms - so the device is fine with the speed, just something I am doing wrong in the ModbusFB method I am sure.
Last updated: 2024-04-26

Post by lukebouchard on NVL generating ADwin packets instead of UDP? ^{CODESYS Forge talk (Post)}
Using Codesys 3.5 SP11 32bit to program a pair of IFM CR711S controllers. They each have an NVL sender and are set up to receive each others messages. One is transmitting properly but not receiving, the other is receiving the first's messages just fine. When I look at the traffic in wireshark, I can see the one transmitting properly as UDP packets on the subnet and port I had specified. The Second is transmitting on the right subnet and port, but is sending 'ADwin Config' packets. Has anyone run into anything simmilar? From some reading on ADwin from google, nothing is enlightening. Both are set up in the same way, have their own ports and List Identifiers. I have deleted the NVL files and regenerated them, cycled power, and even deleted and remade the NVL's so many times.
Last updated: 2024-08-24

Post by phoward131 on Alarm Table Filtering ^{CODESYS Forge talk (Post)}
I am having trouble getting the alarm table filtering to work. I downloaded the alarm filter latch example project and ran it on the local Codesys Control Win and the filters worked fine. I am trying to replicate it in my project and everything seems to be set up the exact same way and every time I turn on the filter, it shows no alarms. I even started a blank project and just copied in elements from the example project so that it is exactly the same and when I attempt to filter, it again shows no alarms. Could there be some project settings I need to adjust to make this work? I have attached my project with elements copied from the example project and filtering is not working.
Last updated: 2024-10-28

Post by dasch on eCockpit - unable to start simulation ^{CODESYS Forge talk (Post)}
This is a known bug in e!Cockpit. See Release notes of V 1.11: 1 e!Cockpit Release Version 1.11 (2022-07) ATTENTION: If a library that uses asynchronous tasks (e.g. WagoAppConfigTool, WagoAppCloud or function modules such as Dali-Master) is dragged into the project, the simulation cannot be started. It is already sufficient to add the library to the project (an FB does not even have to be instantiated). I guess you are using one of these libraries/modules in your project. We e.G. often use PWM modules, these are also affected.
Last updated: 2023-09-05

Post by john-martin on Send file from codesys to...... ftp, cloud, etc ^{CODESYS Forge talk (Post)}
Hi everybody, I am looking for a solution to send files, for example, to an ftp or a cloud. I can't use oscat library because 64 bit controller are not supported. Therefore, I see that the IIoT library has some functions that might help me to implement this sending process in codesys. Does anyone have any examples of how to do this? I have spent some days with this issue without success. Best regards.
Last updated: 2023-11-02

Post by patliby on Cannot Find "Automatically Generate POUs" Option ^{CODESYS Forge talk (Post)}
I would like to enable the feature to automatically generate POUs for Project/Library properties in some of my library/project files. The Codesys help pages indicate it should be on the bottom of the Project Information Summary tab, but mine has no such options (see screenshot). Is there somewhere I have to enable this overall feature or any other prerequisite I am missing? I am using Codesys 3.5.19.20 Reference https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_obj_project_information.html#UUID-9ddc3572-a024-5a49-c0c1-31677991a419_id_c95bfe46c6c18a67c0a8640e01715107_id_0a188ec6fa561b9fc0a8640e0019d8bf
Last updated: 2025-05-08

Post by nz-dave on Custom library, ethernet/ip adaptor ^{CODESYS Forge talk (Post)}
Im Putting alot of my custom functions blocks into a library I have a EthernetIP VSD FB that i would like to get Status from the adaptor. EthernetIP_remote_adaptor.estate is one what i want to get. so anyone know how to point that to my function block? when i use the block i just want to have an input "Drive" that would point to the adaptor. like in softmotion when you just put the axis name in the FB to point the FB to a certain axis. Hope that makes sense, cheers
Last updated: 2025-05-21

Post by ph0010421 on General question about library versions ^{CODESYS Forge talk (Post)}
Hello I can't find anything to read on the subject so I'll ask here. Up to now, when adding a (for example) Modbus Master, I've selected the version <= the RT version, so if I'm using SP13 Patch 3, I can use a library that doesn't exceed this. I've no idea if this is correct, but it's always worked. Can someone explain the 4.x.x.x libraries that have appeared; are they tied to a RT version? The controller I use is now at SP18Patch60, so should I continue to use 3.5.xxx or change? thanks
Last updated: 2024-05-29

Post by julianramirez on ModbusFB write update ^{CODESYS Forge talk (Post)}
Hello everyone, I am testing the ModbusFB library tcp server and so far I am able to create holding registers successfully, however, I am trying to identify after each write which registers got updated (i.e. function code, write value). I can even see the var udiNumWriteRequests, which increases with every write. I noticed that there is logging with the LogStatusInfo method. After I call it I am able to read in the console stuff that I want. Nevertheless, this is only available at the logs and is not easy to decode because it consists on several messages, I would like to know if there is a way for me to retrieve this information from the function itself with pointers or if there is any way to copy the logs messages (assuming that I can filter them with the LoggingOptions to only show what I need) inside the runtime code and not in the console. Thanks for your help :)
Last updated: 2024-09-16

Post by mubeta on Strange problem with the ‘MC_SetPosition’ function ^{CODESYS Forge talk (Post)}
Hi gseidel, before moving to HW implementation, I had created the same program in simulation mode with virtual drives and, as far as I remember, everything worked fine simulating process and the few useful inputs. So it does not seem to be a SoftMotion library problem, but rather a problem with dynamics or physical axis adjustments. What escapes me, however, is the fact that this function is supposed to perform a position shift virtually, in fact without interfering with the axis itself, thus independent of its adjustments. MC_SetPosition() is not a homing function, in fact it is clearly intended to be executed on the fly with the axis moving. Now I'll see if I can reduce the program, although I don't like it very much. In my life I have learned that problem searches should be done on the part, and not in a more or less similar way.
Last updated: 2025-01-10

Post by levih on DocScripting ^{CODESYS Forge talk (Post)}
Hello I'm trying to use the DocScripting collection in Codesys. I've made it work on one PC(1) for the 3.5.16.4 version of the script collection. But when I try the same setup on another PC(2), I get an error message: Error loading Python DLL: D:\SCRIPTING\3.5.16.40\python27.dll (error code 14001) My setup on both PC's is thus: 1. Downloaded and installed Python 2. Copied the folder with the scripting collection to C: (because of admin rights) 3. Placed my .library file in the same folder as the scripting collection Only difference is that Python is v3.12.0 on PC1 and v3.12.1 on PC2. I thought maybe it was something with Python, but then I have tried using the scripting collection from 3.5.16.1, and that seems to work. Just not for scripting collection 3.5.16.4. I also can't seem to find any scripting collections on newer versions of Codesys? (e.g. 3.5.19.10) Thanks in advance!
Last updated: 2024-01-22

Post by bbm1995 on Camera RTSP Feed ^{CODESYS Forge talk (Post)}
Hi dgrard, I had the same issue for a long time, but on a WAGO webvisu. Now I'm glad that I can share my solution. I don't know if you are trying to use the webvisu or the target visu, but this works on webvisu: Get "go2rtc" and set it up according to the documentation. I'm running the Windows binary. Here's my example of the go2rtc.yaml config file (contains working example streams): api: listen: ":1984" # default ":1984", HTTP API port ("" - disabled) origin: "*" # default "", allow CORS requests (only * supported) static_dir: "www" # default "", folder for static files (custom web interface) tls_listen: ":443" # default "", enable HTTPS server tls_cert: "./SSL/fullchain.pem" tls_key: "./SSL/privatekey.pem" streams: # Streams with multiple links will fall back on the next link. ABUS TVIP48511: - rtsp://<username>:<password>@<hostname>:<port>/ch1/main - rtsp://<username>:<password>@<hostname>:<port>/ch1/sub # Diagnostic connections Kirchhoff Institute for Physics - Germany: http://pendelcam.kip.uni-heidelberg.de/mjpg/video.mjpg Blanton Bottling, Kentucky - USA: http://camera.buffalotrace.com/mjpg/video.mjpg Tokyo - Japan: http://61.211.241.239/nphMotionJpeg?Resolution=320x240&Quality=Standard Tampere Hacklab - Finland: http://tamperehacklab.tunk.org:38001/nphMotionJpeg?Resolution=640x480&Quality=Clarity Soltorget Pajala - Sweden: http://195.196.36.242/mjpg/video.mjpg Kaiskuru Skistadion - Norway: http://77.222.181.11:8080/mjpg/video.mjpg webrtc: listen: ":8555" #ice_servers: # - urls: [ "stun:localhost:3478" ] # username: "" # credential: "" Access the webinterface of go2rtc and get the link of your stream. Use the link as for your browser frame in the visualization. Depending on your device, you need to be able to access the file /etc/lighttpd/lighttpd.conf or /etc/lighttpd/webvisu.conf and change the contents similar to this one, otherwise you'll get CORS and CSP errors in the browser and you won't be able to view the stream on the webvisu: # Webvisu specific settings $SERVER["socket"] =~ port_webvisu_used_any { url.redirect += ( "^/webvisu/?$" => "/webvisu/webvisu.htm" ) $HTTP["url"] =~ "^/webvisu/?" { var.response_header_policy_webvisu = ( # CSP for WebVisu, allowing inline sources. "Content-Security-Policy" => "default-src 'self' 'unsafe-inline'; media-src *; frame-src *", # CORS for WebVisu, allowing any origin to access. "Access-Control-Allow-Origin" => "*", # Tell older browsers that this page can only be displayed if all ancestor # frames are same origin to the page itself. "X-Frame-Options" => "SAMEORIGIN" ) # Response header policy for WebVisu setenv.set-response-header = var.response_header_policy_webvisu setenv.set-response-header += var.response_header_policy_common }
Last updated: 2023-11-14

Post by madskaizer on Task Priority Documentation? ^{CODESYS Forge talk (Post)}
Hi All I was watching the Wago PFC300 webinar ( https://www.wago.com/global/lp-thank-you-onlineseminar-pfc-300 ), and the presenters comment about priority 1 being way above the Ethernet task priority, so that a priority 1 PLC program can actually loose SCADA connection, made me try to round up some hard evidence on Codesys Priorities. I find there is very little information on "correct" task priority configuration. There is a lot of different hardware manufacturers, using Codesys Runtime, that has different descriptions in their manuals on how to set up priority. https://doku.amk-motion.com/en/Subsystems/PDK_202975_A-Serie_en/Content/Projekt/AMKAMAC/PDK_202975_A4-A5_Produktbeschreibung/Funktionalitaet/PLC-Programming/PLC%20Tasks.htm?TocPath=PLC-Programming%7C_____7 https://product-help.schneider-electric.com/Machine%20Expert/V1.1/en/SoMProg/index.htm?#t=SoMProg%2FTask_Editor%2FTask_Editor-7.htm&rhsearch=priority&rhhlterm=priority&rhsyns=%20&SUBSTRSRCH=1 https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_f_task_configuration.html So my questions :) 1) If there is only 1 PLC_PRG task, does priority matter? 2) What is the priority of Ethernet / communication, if nothing is entered? 3) What is the priority of Codesys OPC UA server? 4) Some users here on forge mentions that Wago PLC programs should run as priority 11, but where does this recommendation origin from? 5) What are you recommendations for a relatively slow process, like building automation? It uses OPC UA for communication to SCADA, maybe some MODBUS-RTU and MODBUS-TCP, usually around 100 I/O, been running with everything in a single task at priority 1, 50-100ms cycle time. Some controllers have separate MODBUS tasks, but doesn't seem like a big difference. How would you recommend splitting up communication, IO fieldbus and programs into differently prioritized tasks? I know its a complex matter and all about my application, but I really miss there was just some kind of guidance in the documentations and with all new standard Codesys programs having priority 1 as default, makes it seem less important, than it really is.
Last updated: 2025-08-11

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