Post by mejak on USB HID RFID - read ID in plc program ^{CODESYS Forge talk (Post)}
pleas delete this topic
Last updated: 2024-01-25

Post by lucaver89 on Raspberry pi 3 and runtime 4.9.0.0 ^{CODESYS Forge talk (Post)}
Good morning, I'm using a raspberry pi3 as plc with the runtime 4.9.0.0. My program has many of retrain variables but when an update is performed the retrain variables comes back to default values. Is the a way to backups the retrain variables n a csv file? Is still the way to restore them from the csv? Thank you for helping Luca
Last updated: 2023-09-23

Post by chiali on Recipe issue. ^{CODESYS Forge talk (Post)}
Hi Everyone, I'm trying to make a simple Recipe project using 'Save Recipe In File' and 'Load and Write Recipe' Execute Command buttons in Visualization but No dialog box 'Save As' appears when I click on buttons (Nothing happens). What is wrong. Please see the attached files. Best Regards, Chiali.
Last updated: 2023-10-23

Post by soped on How to generate EtherCat xml from command line ^{CODESYS Forge talk (Post)}
Hi I'm using codesys 3.5 SP4 Under tools->customize I have added the command "Generate ethercat xml" to my project so that I can export the configuration as an xml file. I can't find a way how to run that command from CLI, is that even possible and if a script is needed I would appreciate an example ?
Last updated: 2024-06-27

Post by elerensx on Uninstall Codesys2.3 got RUNDLL There was a Problem Starting error ^{CODESYS Forge talk (Post)}
Try to repair Codesys2.3 and need to uninstall and reinstall it. Got this RUNDLL message when uninstall Codesys 2.3: There was a problem starting, the specificed module could not be found. Please refer to attached file. Followed suggestions from Microsoft website and didn't work out. I am using Codesys2.3.9.16. Any help is appreciated.
Last updated: 2024-07-15

Post by jmfernandes on OpenDir always in error ^{CODESYS Forge talk (Post)}
Thanks for the answer Tim. I am using the codesys version 3.5 SP16, is this also affected or only after version 19? But now at leastI know that is an acess problem to the file and not something else. Unfortunately the link you posted on 2023 are now dead, but I will investigate!
Last updated: 2024-08-01

Post by mtnkyr on Runtime Problem connecting to Keyence IV-500MA Camera ^{CODESYS Forge talk (Post)}
I have to use Keyence IV-500MA Camera for a project. Actually I can use physical connection but I tried to connect using Ethernet protocol so I added its EDS file but I took a lot of errors. Could you help me to solve this problem?
Last updated: 2024-12-26

Post by mtnkyr on Runtime Problem connecting to Keyence IV-500MA Camera ^{CODESYS Forge talk (Post)}
I have to use Keyence IV-500MA Camera for a project. Actually I can use physical connection but I tried to connect using Ethernet protocol so I added its EDS file but I took a lot of errors. Could you help me to solve this problem?
Last updated: 2024-12-26

Post by alexgooi on Execute a .py file with Codesys ^{CODESYS Forge talk (Post)}
Hello yann, In the past I have experimented with the execution of Linux commands using Codesys. Maybe this article helps: https://www.linkedin.com/pulse/run-linux-commands-from-codesys-jouke-aalvanger When you are able to execute Linux commands in Codesys, you can run the Python script.
Last updated: 2025-09-03

Post by yoeri on Python Scripted Save_Archive with noUI ^{CODESYS Forge talk (Post)}
Is there any update on this? Running codesys 3.5.19.70 proj = projects.open(project_path, primary=True, update_flags=flags) This gives an error only when using --noUI exception System.NullReferenceException: Traceback (most recent call last): File "C:\Project\ci\build.py", line 14, in <module> SystemError: Object reference not set to an instance of an object. Exit code: 1</module>
Last updated: 2026-01-30

Post by manuknecht on Persistence Manager does not save alphabetically first value ^{CODESYS Forge talk (Post)}
I have several libraries which contain values that should be saved on a PLC. As apparently no Persistent Variable List is available within Libraries, I use the Persistence Manager to create a Persistence Channel in the Project which imports the library. I then specify the persistence channel in the library using the {attribute 'ac_persist':='PersistenceChannel_CT'} specifier. This generally works very well and gives me exactly the properties I require. However, it came to my attention that the (alphabetially) first value from the library is not saved in the created ASCII file. When checking the content of the Persistence Channel, it shows all the variables as defined in the library. But the created file does not contain the first value and it is not restored after restart or reset. (see attached picture) I disabled Periodic Saving and set xSaveOnChange to TRUE and so the file usually updates immediately after changing one of the values. When changing the first value, it does not update which is consistent with this value not being saved. I also created a sample project and library from scratch which shows the same issue both using a Raspberry Pi and using a Linux machine. Does someone know what the reason for this could be or did someone make similar experiences? Looking forward to hearing your suggestions. Thanks in advance and best wishes Manuel
Last updated: 2023-10-17

Post by lorenzo-pisoni on SysProcessExecuteCommand ^{CODESYS Forge talk (Post)}
Hello, I'm encountering an issue with the Sysprocess library while attempting to execute commands to transfer a file from a NAS to my PLC. Currently, I'm trying to test a simple "reboot" command, but it doesn't work as demonstrated in this video: https://youtu.be/77c7Af5xRhE?si=uFZdB6fTNQitzWMQ. I'm using CODESYS V3.5 SP18 Patch 4 (3.5.18.40). From other sources, I've learned that to enable the PLC to execute commands, I need to add the following line to the file CODESYSControl_User.txt: [SysProcess] Command=AllowAll However, the issue I'm facing is that this file doesn't exist on my CPU. I have full SSH access and can see all files, but only CODESYSControl.txt is present. Adding the command to CODESYSControl.txt hasn't resolved the problem.
Last updated: 2024-07-11

Post by k2saki on CNC / G-Code streaming processing ( to start quickly in long G-Code File ) ^{CODESYS Forge talk (Post)}
Is it possible like G-Code streaming processing (like FANUC or SIEMENS DNC Function )? Or Does anyone know the tips for CODESYS Motion to start moving long Long G-Code File quickly? I have to wait long time after "Start" button to start moving, I have to wait finishing interpreting whole G-Code file, ( and I have to prepare huge buffer to store. ) Now, I'm working on my CNC Project using SMC_ReadNCFile2, and SMC_NcInterpreter to preprocess G-Code. I tried to set SMC_Interpolator.xExecute to true to Start while after SMC_NcInterpreter processed more 50-line of G-Code, but that not worked, I had to wait SMC_NcInterpreter processed all lines to start SMC_Interpolator. G-Code have about 2000 lines of XY of G01 (or more over.. ) of short segment that a CAM software has exploded from NURBS Curve.
Last updated: 2024-05-03

Post by sbrauns on Codemeter log error: API Error 200 (ENTRY NOT FOUND) occurred! ^{CODESYS Forge talk (Post)}
Hi, I am using Codesyscontrol for linux 4.11 with an USB dongle with license. The log file from codemeter shows a constant error message which repeats every minute: Entry (6000437:8755) not found - Event WB0200 (ENTRY NOT FOUND), Request IP-Address local(IPV4) with UserLimit API Error 200 (ENTRY NOT FOUND) occurred! The log file from Codesyscontrol itself shows runtime licensed and I experience no other issues. But I am still concerned about the error message in the log file. Does anybody know what this is and how to fix it? thanks
Last updated: 2024-05-08

Post by dogulas on OPC UA C# client connecting to OPC UA CODESYS server ^{CODESYS Forge talk (Post)}
Ok, I have a simple test environment. From C#, using OPC UA, I can read DINTs, write DINTs, read Structs, but when I try to write a struct I get BadNotWritable. I am using Communication Manager, OPC UA Server, and IEC Symbol Publishing. I have a struct defined with one single DINT in it. The instance of the struct is in GVL. The struct is marked read/write in IEC Symbol Publishing. Any ideas? Pointers are welcome. public static async Task WriteStructA(byte[] structAData) { if (_session == null) throw new Exception("session is null"); // create a RequestHeader RequestHeader requestHeader = new RequestHeader { Timestamp = DateTime.UtcNow, TimeoutHint = 30000 // timeout in milliseconds }; // create an ExtensionObject to wrap the value to be written ExtensionObject extensionObject = new ExtensionObject( new ExpandedNodeId("GVL_StructA", 5), structAData ); // create a WriteValue object to hold the value to be written WriteValue writeValue = new WriteValue { NodeId = _structANodeId, AttributeId = Attributes.Value, Value = new DataValue(extensionObject) }; // put the WriteValue object into a WriteValueCollection object WriteValueCollection writeValueCollection = new WriteValueCollection() { writeValue }; // perform the write operation asynchronously WriteResponse writeResponse = await _session.WriteAsync( requestHeader, writeValueCollection, CancellationToken.None ); // check the result of the write operation if (writeResponse.Results[0] != StatusCodes.Good) throw new Exception("Write failed: " + writeResponse.Results[0]); }
Last updated: 2024-12-17

Post by akfarslan on The application does not exist on "device" ^{CODESYS Forge talk (Post)}
Dear All, I am using CODESYS 3.5.19 SP4 with a PLC device. When I try to download my program to the device, I get the error: "The application 'Application' does not exist on the device". Additionally, after restarting the device, the program does not run automatically. When I connect to the device using WinSCP, I can see that the application.app file is uploaded to the root directory, but the device does not automatically start the application. I tried using the Create Boot Application option, but it does not resolve the issue. Is there another configuration step I am missing? How can I fix this problem? Thank you, Best regards,
Last updated: 2024-12-17

Post by eoahe on Problem Reading Registers via Modbus from non Codesys device ^{CODESYS Forge talk (Post)}
Hey Guys :) I have the following Problem using Modbus via Codesys: I'm trying to implement a Modbus Device into my codesys project. The device is a Router from Teltonika (RUT956) and it can communicate via Modbus. Currently I'm trying to implement it into my codesys prject as a slave and I'm using my windows computer as master. As it is not a codesys device (the codesys application is not uploaded to device as it has its own software) I'm having problems requesting and reading registers from the router. I've set up my windows computer as Master and implemented the router as slave. When I go online on my master device it sais that it has established a connection to the slave (router)(So I'm thinking this could work as there is a connection?). The goal is to read the GPS (latitude and longitude) data and on the homepage of teltonika you can find the register address and number of registers (adress 143 for latitude and 145 for longitude; both have a number of two registers). I've found tutorials how to read specific registers via their register address with other modbus programs (like modbus-cli), but as my entire project is established in codesys I was hoping to read these specific registers via codesys so that I can show the GPS data on my dashboard. I've tried establishing slave channels but that hasn't been working. I tried read input register channels of the length 4 but it's not possible to define specific register addresses to read via codesys so that didn't work (I jsut get a slaves device failure) and I've also tried establishing 516 (total number of registers the router sends I think?) read inputregister channels but that has the samle failure... So i guess the problem I'm having is establishing slave channels to read these specific registers. Does anyone know how to tackle this problem and has maybe had the same problem? Or maybe someone knows a workaround? I'm quite new to codesys so maybe I'm also lacking expertise...
Last updated: 2025-03-01

Using a method called from opcua fill an specific array position ^{CODESYS Forge talk (Thread)}
Using a method called from opcua fill an specific array position
Last updated: 2022-02-18

how to run the machine using CNC editor in codesys ^{CODESYS Forge talk (Thread)}
how to run the machine using CNC editor in codesys
Last updated: 2007-10-24

Time Measurement between two events with V2.3 using Wago750-890 ^{CODESYS Forge talk (Thread)}
Time Measurement between two events with V2.3 using Wago750-890
Last updated: 2020-12-22

Using Beckhoff EL3356 1-channel precise load cell analysis (resistor bridge), 16 bit ^{CODESYS Forge talk (Thread)}
Using Beckhoff EL3356 1-channel precise load cell analysis (resistor bridge), 16 bit
Last updated: 2016-05-30

Establishing communication between a Raspberry Pi 4 and an Arduino UNO R3 using I²C. ^{CODESYS Forge talk (Thread)}
Establishing communication between a Raspberry Pi 4 and an Arduino UNO R3 using I²C.
Last updated: 2023-12-03

How to configure gateway for programming RPi 2B using Codesys ^{CODESYS Forge talk (Thread)}
How to configure gateway for programming RPi 2B using Codesys
Last updated: 2024-07-10

Timeout Error in Modbus Communication with WAGO PFC200 and iEM2050 Meter using 750-652 Module ^{CODESYS Forge talk (Thread)}
Timeout Error in Modbus Communication with WAGO PFC200 and iEM2050 Meter using 750-652 Module
Last updated: 2024-07-30

Connection between Beijer PLC and Schneider Tesys-Island using Modbus TCP ^{CODESYS Forge talk (Thread)}
Connection between Beijer PLC and Schneider Tesys-Island using Modbus TCP
Last updated: 2024-10-08

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