Post by vtec35 on search runtime 4.9.0.0 for pi 3 ^{CODESYS Forge talk (Post)}
i have update the package 4.13 n the computer and install all update for all package, now impossible to start codesys... when i start to open any project i have a message invalid project...
Last updated: 2025-10-26

Post by kporter on Exception with ReadNbrSlaves function ^{CODESYS Forge talk (Post)}
I've been playing with the code using the Windows soft master and the ReadNbrSlaves function block seems to work here: https://content.helpme-codesys.com/en/libs/EtherCATStack/4.8.0.0/EtherCATStack/pou-ETCMasterStack/DynamicConfig/fld-DynamicConfig.html
Last updated: 2025-10-31

Post by shaunvdm on OSCAT Scale_r function not working in LD 4.60 works in LAD2 on 3.5.21sp3 ^{CODESYS Forge talk (Post)}
Hi All, We downgraded Codesys LAD/FB in the IDE to version 4.5 and it works. Codesys Version 4.6 lad/fb not working. Was the way we fixed this. Kind Regards Shaun
Last updated: 2025-11-17

Post by eschwellinger on EtherCAT status errors ^{CODESYS Forge talk (Post)}
Setting IRQ priorities using shell commands irq-list and irq-set-prio for the network adapter which is used for Ethercat. This is here: https://content.helpme-codesys.com/en/CODESYS%20Control/_rtsl_performance_optimization_linux.html
Last updated: 2025-11-25

Post by gseidel on SMC_ERROR.SMC_AXIS_NOT_READY_FOR_MOTION when using Drive Virtual ^{CODESYS Forge talk (Post)}
Hi ducng, you need to make sure that MC_Power.Status is TRUE before you give a rising edge to MC_MoveRelative.Execute. (This is the same for virtual and real axes). Best regards, Georg
Last updated: 2025-11-27

Post by gseidel on STEPPER CODESYS SOFTMOTION_DRIVE ^{CODESYS Forge talk (Post)}
Hi kalmeyer, I would recommend to have a look at these examples. They come with a project and a description: https://content.helpme-codesys.com/en/CODESYS%20SoftMotion/_sm_basic_examples_single_axis.html. Best regards, Georg
Last updated: 2025-11-28

Post by clockben on Python script to add libraries to project ^{CODESYS Forge talk (Post)}
Hello, I have the same issue — some libraries aren’t resolved. When I load the libraries manually and delete them, reloading with the script works fine afterward. Have you found a solution since then? Many thanks in advance
Last updated: 2025-11-11

Post by davidbo on *EXCEPTION* [ProsessorLoadWatchdog] codesys 3.5.11.40 ^{CODESYS Forge talk (Post)}
Under Application->"Task Configuration" you can find your task double click on that and you will see a fane to the right. You find the watchdog enable switch it off or increase the time
Last updated: 2025-11-17

Post by iliyatsukerman on SoftMotion auf PFC200 ^{CODESYS Forge talk (Post)}
Hallo, Wir würden Ihre Unterstützung bei der Überprüfung der Kompatibilität der folgenden Konfiguration sehr schätzen: • PSTR-LO-16/400FEV ELMO • SCALANCE XC208 • WAGO PFC200 750-8213/40-010 • Die SPS (WAGO) wird gleichzeitig eingesetzt als: o EtherCAT-Master zur Kommunikation mit einem Elmo-Servoantrieb (EtherCAT-Slave, 4 Achsen – generisches CiA 402-Profil), und o Modbus-TCP-Server zur Kommunikation mit einem Siemens Modbus-TCP-Client, welcher zur Fernsteuerung des Elmo-Servoantriebs über die SPS dient. Bitte bestätigen Sie, ob die SPS in der Lage ist, diese Dualfunktion — als EtherCAT-Master und gleichzeitig als Modbus-TCP-Server — ohne Konflikte oder Performanceprobleme zu unterstützen. Insbesondere interessiert uns, ob die CODESYS SoftMotion SL Basislizenz (2305000000-F) notwendig ist, um 4 Servoachsen zu steuern, und ob diese Lizenz auf einer WAGO PFC200 SPS mit CODESYS Version 3.5 Service Pack 19 Patch 40 oder höher unterstützt wird. Alle Achsen im Servoantrieb werden unabhängig voneinander gesteuert. Mit freundlichen Grüßen. ILIYA
Last updated: 2025-07-13

Post by joshskellig on Publish a JSON payload via MQTT Publish (using IIot Libraries) ^{CODESYS Forge talk (Post)}
I am trying to figure out how to get a JSON payload to properly publish to my MQTT Broker. I am able to generate JSON using the examples from Codesys, but when I send that payload via MQTT there are characters that are extra or not recognized by my MQTT client. Any idea what could be causing it? PROGRAM PLC_PRG VAR hostname: STRING := 'localhost'; port: UINT := 1883; topic: WSTRING(1024) := "testing/"; payload: BYTE; factory : JSON.JSONDataFactory; eDataFactoryError : FBF.ERROR; pJsonData : POINTER TO JSON.JSONData := factory.Create(eError => eDataFactoryError); fb_JBuilder : JSON.JSONBuilder; wsValue : WSTRING := "Value1"; diRootIndex, diObject1Index : DINT; iValue : INT := 1234; jsonArrayWriter : JSON.JSONByteArrayWriter; wsJsonData : WSTRING(1000); xFirst : BOOL := TRUE; mqttClient: MQTT.MQTTClient; mqttPublish: MQTT.MQTTPublish; mqttPublishProperties: MQTT.MQTTPublishProperties := (bPayloadFormatIndicator := 1, wsContentType := "application/json"); END_VAR // Json Functionality IF xFirst THEN fb_JBuilder(pJsonData := pJsonData, diRootObj => diRootIndex); fb_JBuilder.SetKeyWithValue("Key1", wsValue, diParentIndex := diRootIndex); diObject1Index := fb_JBuilder.SetKeyWithObject("Key2", diParentIndex := diRootIndex); fb_JBuilder.SetKeyWithValue("Key3", iValue, diParentIndex := diObject1Index); xFirst := FALSE; END_IF jsonArrayWriter(pwData := ADR(wsJsonData), udiSize := SIZEOF(wsJsonData), jsonData := pJsonData^, xAsyncMode := FALSE); MSU.StrTrimW(pString:= ADR(wsJsonData)); // MQTT Functionality mqttClient( sHostname:=hostname, uiPort:=port, eMQTTVersion:=MQTT.MQTT_VERSION.V5 ); mqttPublish( mqttClient:=mqttClient, pbPayload:=ADR(wsJsonData), udiPayloadSize:=SIZEOF(wsJsonData), wsTopicName:=topic, mQTTPublishProperties:=mqttPublishProperties );
Last updated: 2024-04-10

Post by bschraud on Zielsystem stimmt nicht mit dem verbundenen Gerät überein ^{CODESYS Forge talk (Post)}
Dank umfangreicher Hilfe durch den Kontron Support kann ich nun wieder übersetzen. Es waren einige Bibliotheken auf einem älteren, nicht 64bit-kompatiblen Stand. Beim Öffnen des Projektes erscheint zwar ein Dialog zum Aktualisieren der Bibliotheken. Diesen hatte ich auch mit "Auf neueste setzen" bestätigt. Trotzdem waren etliche Bibliotheken im Projekt veraltet. Leider habe ich noch keine Stelle in der Online Hilfe gefunden, die die Zusammenhänge in der Bibliotheksverwaltung und das Vorgehen bei Fehlern erklärt. (Z.B. wie man vermeiden kann, dass eine Komponente automatisch eine ältere Bibliotheksversion lädt, obwohl eine aktuelle Version der gleichen Bibliothek schon hinzugefügt wurde.) Vielen Dank für die Hilfe!
Last updated: 2024-03-25

Post by edson-bueno on SysProcess Execute Command unable to run commands with special characters ^{CODESYS Forge talk (Post)}
Hi, I found the same issue, and I fixed with this steps: 1st go to codesys .cfg file. sudo nano CODESYSControl.cfg Then insert this: [SysProcess] BasePriority=Realtime Command=AllowAll Now we need to grant codesys root rights on Linux. Step 1: Create or edit the systemd override configuration: sudo systemctl edit codesyscontrol In the editor that opens, insert: [Service] User=root Save and exit: Press Ctrl+O to save Press Ctrl+X to exit Step 2: Reload systemd and reboot To apply the override: sudo systemctl daemon-reexec sudo systemctl daemon-reload sudo reboot Step 3: Confirm CODESYS is running as root After reboot, open the terminal and run: ps aux | grep codesyscontrol You should see something like: root 1234 ... /opt/codesys/bin/codesyscontrol.bin ... If instead it shows admin or another user, the override was not applied correctly. Step 4: (Optional) Confirm from within CODESYS In your CODESYS project, insert this test code to run the Linux command whoami: Make sure the lib SysProcessImplementation, SysTypes, and CmpErrors is on the project. VAR sCommand : STRING := '/usr/bin/whoami'; sOutput : STRING(255); refCommand : REFERENCE TO STRING; refOutput : REFERENCE TO STRING; resultCmd : UDINT; END_VAR refCommand REF= sCommand; refOutput REF= sOutput; SysProcessExecuteCommand2( pszCommand := refCommand, pszStdOut := refOutput, udiStdOutLen := SIZEOF(sOutput), pResult := ADR(resultCmd) ); Notes & Warnings This method gives full system access to the CODESYS runtime — do not expose this system to the public network without protection. Do not use sudo in commands inside CODESYS when the runtime is already running as root. @tomas111, in case you want to read the temperatur, use this command: sCommand:STRING:='/usr/bin/vcgencmd measure_temp';
Last updated: 2025-05-20

Post by alex-at-xana on EThercat Dynamic configuration ^{CODESYS Forge talk (Post)}
Hi Everyone, For a fast monitoring system I am using Ethercat oversampling and timestamping inputs. As the customers has a lot of different configurations out in the field, we went for a dynamic Ethercat configuration. Already got the whole detection chain working but now I am stuck since two days in debugging the configuration. Here are my quesitons: I extended the dynamic config example for the EL3632 16#0E303052: //EL3632 pSlave^.SetDCSettings(TRUE,TRUE,80,80,TRUE,4000,0,0); pSlave^.AddSyncManager(16#1000,128,16#26,TRUE,3); pSlave^.AddSyncManager(16#1080,128,16#22,TRUE,2); pSlave^.AddSyncManager(16#1100,0,16#4,TRUE,1); pSlave^.AddSyncManager(16#1110,214,16#20,TRUE,0); pSlave^.AddFMMU(0,214,0,7,16#1110,0,1,1); pSlave^.AddFMMU(0,1,0,0,16#80D,0,1,1); xKnown := TRUE; This leads to a PLL Error for these devices. I double and triple checked the configuraton, but cannot find the issue. There seems to be one difference: the config dialog creates a startup parameter: 16#10F3:16#05, Name: Command_0, Value:0. Bitlen: 16, Stop on fault: false, jumpt at fault: false: next line: 0 a) I do not find information on how to set this in my code. Can you help me there? b) Without trying to set the value, I get a PLL error for these devices in the master log. Is the config wrong? c) Do I need to set the Master to Autoconfigure or Manual? I used autoconfigure for my tests. The stack creates input data addresses for the slaves input data range (pSlaves[i].InputData) which are different from those created when I use the Engineering tools dialogs to configure Ethercat. Specifically, the addresses seem to be aligned at 16 byte boundaries when they are created using the engineering tool, but may appear at uneven addresses when I use the script in dynamic config. I did not try to access ULINT at uneven addresses yet, but I am suspecting this may be a problem. Do I need to manually align the addresses ? Any help is appreciated...
Last updated: 2024-09-10

Post by davidbo on RPI can system operation like rm in a shell have an impact on a Task cycle time ^{CODESYS Forge talk (Post)}
I have noticed that a rm file1.txt command on a shell has an impact on the cycle time for a TASK writing to file2.txt. Seen in the Monitor fane of the Task configuration Furthermore if a TASK makes a system call like rm, its cycle time increases of course but it seems to have an invisible impact on other TASKs too. I have a TASK for handling communication over the CANbus (SPI) where it stops sending "Heartbeats" for many seconds when another TASK does a system rm. Why is that not seen on the Monitor fane? Is even codesyscontrol paused when system calls are made? The CPU load is about 30-40%
Last updated: 2024-09-23

Post by timvh on Communication between applications on same device/controller/runtime (Win RTE 3.5.20.20) ^{CODESYS Forge talk (Post)}
If you have a Windows system (RTE), then why not run the CODESYS HMI as separate controller. This could easily be moved to another PC if required. In the HMI you could also still use the Symbolic Var access as part of the Data Source Manager, although maybe OPC is the preferred way to make it more future proof. Or what about the Remote Target Visu. Then you can reduce the load of the main controller, while still only having to create one application including Visualization. This is now also supported for Linux systems. See: https://content.helpme-codesys.com/en/CODESYS%20Control/_rtsl_target_visu_for_linux.html https://content.helpme-codesys.com/en/CODESYS%20Visualization/_visu_execute_remote_target_visu.html
Last updated: 2024-09-28

Post by pernockham on Linking to IO during runtime with hot swap? ^{CODESYS Forge talk (Post)}
I have a project where a single PLC shall control multiple nodes (up to 10 units?) with IO connected through profinet. Ideally each node should be identical however with time I see situations were different setups/configurations will be used. Codesys PLC (GVLs) |Profinet | |--PNIO-node-1--| | | AIO, | | DIO, | | CNT etc. | |--PNIO-node-2--| | | AIO, | | DIO, | | CNT etc. Ideally I think of a configuration through yaml/xml-files (the assignment/linking of the profinet nodes towards GVL-variables in the PLC as well as scaling, channel configration etc.). Would be grateful if someone could suggest library/-ies that can handle the following: - Verify what IO is connected to a device/node. - Hot-swap/assign link for IO towards GVLs, either automatically or through a HMI.
Last updated: 2024-10-11

Post by struccc on Problem Update new version Master ethercat ^{CODESYS Forge talk (Post)}
Hi, I had some issues as well migrating to the new version. What I have learnt: - Have to check all the libraries in the library manager, if they are the proper versions. - Some other parts of the application, maybe an old library referenced by another one can keep the old Ethercat libraries.... Use the "Placeholders" function on the library manager - See if there is a new version available of the slave "devices". Might just have to update them ... I had problems moving from 4.7 to with 4.8, especially with the 2nd adapter for redundancy - some devices failed to initialize properly.... So I have just downgraded those libraries now. P.
Last updated: 2024-10-28

Post by askic on Name Validation of Visualization objects ^{CODESYS Forge talk (Post)}
Hello, In my projects, I'm following this recommendation about the rule names in Codesys https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_rules.html, so I always use backtick identifiers, not only for variables, but also for the object names. However, I have noticed that in the current version of Codesys, when adding Visu object, it is not allowed to used these identifiers in the name. This is very different from all other objects like, folder names, POU names, Variable list names etc. I wonder if there is some hidden settings I can use to enable backtick identifiers in the Visu object names? Attached is a screenshot with the details. Thank you!
Last updated: 2025-01-10

Post by imdatatas on String length issue in GetRecipeNames method ^{CODESYS Forge talk (Post)}
Hi, If the string length in the GetRecipeNames method is lower than the default value, there will be a problem with the resulting Recipe file names. For example; When the method in the link is called, let's say the defined string length is 19. In this case, the string content is corrupted as in the image. strArr: ARRAY[0..9] OF STRING(19); https://content.helpme-codesys.com/de/libs/Recipe%20Management/Current/pou-RecipeManCommands/GetRecipeNames.html The same problem does not occur when the string definition is made in the default size. strArr: ARRAY[0..9] OF STRING; FYI Regards, Imdat
Last updated: 2025-02-19

Post by imdatatas on String length issue in GetRecipeNames method ^{CODESYS Forge talk (Post)}
Hi, If the string length in the GetRecipeNames method is lower than the default value, there will be a problem with the resulting Recipe file names. For example; When the method in the link is called, let's say the defined string length is 19. In this case, the string content is corrupted as in the image. strArr: ARRAY[0..9] OF STRING(19); https://content.helpme-codesys.com/de/libs/Recipe%20Management/Current/pou-RecipeManCommands/GetRecipeNames.html The same problem does not occur when the string definition is made in the default size. strArr: ARRAY[0..9] OF STRING; FYI Regards, Imdat
Last updated: 2025-02-19

Post by pernockham on Inheritence of struct, ^{CODESYS Forge talk (Post)}
Apparently my construction will not work as any of the sub-types are not be able to accept any (further) value-initiation. Ie: string_item : log_data_base := (string_value := 'test', val_type := STRING_); is not eq to (the string_value will not be assigned): string_item_2 : log_data_string := (string_value := 'test'); Because effectively for the compiler this is eq. to a "double" assignment where the compiler sees only the first assignment (my guess). string_item_2 : log_data_base := (val_type := STRING_) := (string_value := 'test'); Im not sure this should be treated as a bug, but it would surely be nice to be able to use this construction (compiler is 3.5.20.40). Anyone see any other alternative for solution (other than 4 complete STRUCTS with all fields individually defined)?
Last updated: 2025-03-07

Post by milosfejgl on Codesys Licenses - How to reload them after updating the Raspberry Pi OS ^{CODESYS Forge talk (Post)}
We use several control units running on Raspberry Pi, programmed using Codesys software, with multiple licenses stored as soft containers. We are planning to update the SD card image of the Raspberry Pi to a newer OS version. However, we are concerned that this process might result in the loss of our soft container licenses. Is there a way to temporarily deactivate the license so that it can be reactivated on the updated system? Alternatively, what would be the best method to preserve the licenses during the update? Thank you in advance for any responses!
Last updated: 2025-03-13

Post by jampid on Struct Literal ^{CODESYS Forge talk (Post)}
Bonjour Davidmic, Il n'est pas possible d'associer une méthode à une fonction. Cela est possible sur les Blocs fonctions. En utilisant ta DUT MyStruct, je créé une fonction avec en entrée un tableau de structure :** FUNCTION F_F3 : REAL VAR_IN_OUT // bien définir un type IN_OUT IN_ptrINT: ARRAY[*] OF MyStruct; // la taille sera définie ultérieurement/ END_VAR VAR _di: DINT; // Index de parcours du tableau pour l'écriture dans les cases ENDVAR ============== //Programme F_F3: FOR _di := LOWER_BOUND(IN_ptrINT,1) TO UPPER_BOUND(IN_ptrINT,1) DO IN_ptrINT[_di].som:=IN_ptrINT[_di].a + IN_ptrINT[_di].b; END_FOR J'utilise ensuite cette fonction dans un POU Programme : PROGRAM Test_F_Fx VAR _aiTAB9:ARRAY[0..3] OF MyStruct := [(a := 1, b := 1.2), (a := 2, b := 2.2), (a := 3, b := 3.3), (a := 4, b := 4.4)]; END_VAR ** ==========** F_F3(IN_ptrINT:=_aiTAB9 ); Voilà l'idée pour avancer. Une autre idée, est d'utiliser les pointeurs ou les références. Bon développement!
Last updated: 2025-04-07

Post by viksym on How to get the motor scaling value from code ^{CODESYS Forge talk (Post)}
If anybody finds this in the future, I managed to do it like this: scalingValue := EncoderPulseCountPerRev / ABS(AxisName.fScaleFactor); No need to use MC_ReadParameter as I am able to read this value directly from the axis object. Using an absolute value of the fScaleFactor is there in case the axis is set as inverted, in which case it would be a negative value. I was not able to figure out how to get EncoderPulseCountPerRev programatically, but since all my servos use an encoder with pulse count per revolution of 16#800000, the final equation looks like this: scalingValue := 16#800000 / ABS(AxisName.fScaleFactor);
Last updated: 2025-08-19

Post by ignat on Change date range of Trend ^{CODESYS Forge talk (Post)}
Hi ryusoup, looking for the same functionality. I tried to use your code but couldn't figure out all the details. to enable Listener should it be called once or cyclically? the listener should be called with the intance of FB which you described? should it be this instance to be called cyclically too? I tried to make it simpler, just force the uiYear/uiMonth etc. but couldn't make it work. Could you please share some details how the whole struckture looks like? Would be great if you share an example UPD: found the issue. Your code works. Thanks for the posts
Last updated: 2024-01-17

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