'The object GUID 'xxxx' is not valid' message when trying to commit a project to SVN ^{CODESYS Forge talk (Thread)}
'The object GUID 'xxxx' is not valid' message when trying to commit a project to SVN
Last updated: 2022-09-14

ENI server: Object type registry not found in the database ^{CODESYS Forge talk (Thread)}
ENI server: Object type registry not found in the database
Last updated: 2010-02-19

Any ways to prevent Infinite scroll when moving an object to the left or top edge? ^{CODESYS Forge talk (Thread)}
Any ways to prevent Infinite scroll when moving an object to the left or top edge?
Last updated: 2025-10-24

Post by liamb on Unable to add alarm configuration object to project ^{CODESYS Forge talk (Post)}
I'm trying to add an alarm configuration object to a project in Codesys 3.5 SP12 however when I right click on application and try to add object there is no option for it. Is alarm configuration avaiblible on this service pack?
Last updated: 2024-09-24

Post by jeroenaero on Difference between using OPCUA symbol configuration and OPCUA Server object ^{CODESYS Forge talk (Post)}
Hi, What is exactly the difference between using symbol configuration as OPCUA server or using the Codesys object OPCUA server? What are the advantages and disadvantages of using symbol configuration and OPCUA server object. Please let me know
Last updated: 2025-10-30

Post by macros8 on Error, visualisation property handling, VISU_USEPROPERTYINFO ^{CODESYS Forge talk (Post)}
you all saved my life now ;)
Last updated: 2023-12-09

Post by davidbo on All the things needed for anonymous login to OPC UA ^{CODESYS Forge talk (Post)}
When you have a deep object structure where not all values are not exposed to OPC UA, the top object will not have a V check mark but be filled fully out. In that case CODESYS do not always registrate changes to inner object. Solution set a V in the checkbox of the top object, build, download. Now you can browse, but all values in the top object will be selected, then you can deselect the ones you don't want, build, download and it works
Last updated: 2025-09-10

Post by timvh on Refresh visulization realtime ^{CODESYS Forge talk (Post)}
Should work by using the property Dynamic bitmap - Bitmap version. Change the value of the variable you linked to this property after you updated the image. See: https://content.helpme-codesys.com/en/CODESYS%20Visualization/_visu_elem_image.html
Last updated: 2024-10-23

Post by tvm on Passing properties as VAR_IN_OUT variables. ^{CODESYS Forge talk (Post)}
Use a VAR_INPUT for properties. The reason for the error is that you can't get a reference to a property. Using a VAR_INPUT will copy the property to an input variable.
Last updated: 2025-03-06

Post by durallymax on Making a Visu Element normally invisible and visible if variable is true ^{CODESYS Forge talk (Post)}
You can write any expression that evaluates to TRUE/FALSE in that property, you can also call a method from the property.
Last updated: 2025-06-06

Post by smartcoco on Dynamic object release issues ^{CODESYS Forge talk (Post)}
It seems that there is no solution to this problem.
Last updated: 2024-03-04

Post by androidzz on Json Builder problem? ^{CODESYS Forge talk (Post)}
Dear reader, I am using the codesys JSON utilities SL, 1.9.0.0 library. And then specifically the FB JSONBuilder. I need to create a main object with at least 2 objects in it. The first object is no problem, but I cannot insert the second object into the main object. See attached my code and the result I get. I am assuming that I am doing something wrong with the parent index but have tried a lot and can't get it done. Kind regards, Rob
Last updated: 2024-03-11

Post by herbasso88 on WebVisu flickering ^{CODESYS Forge talk (Post)}
Good morning, I'm new on Codesys Forge, so I'm not sure if this is the right place to talk about my problem. When I open my WebVisu pages with Microsoft Edge, or Chrome, the background and also some rectangles blinking without reason!!! The application is developed with Codesys 3.5.17.10 and run on Codesys HMI, same version (3.5.17.10). After several experiments I discover that the problem happens when I made dynamic the "End of area" property of a meter object, but I can't understand why this blinking problem happens. Also, the problem is only at the WebVisu page, the "normal" VISU pages (the ones opened when Codesys HMI start) work always perfectly. Another strange thing is that the problem happens only if on the same page, where there is the meter object, there is also a trend object!?!? Codesys HMI is running on a Virtual Machine (VMware Workstation 15 player, v.15.5.6) running Windows 10 Pro N 64-bit. The blinking problem happen also if I convert the project to Codesys 3.5.20.0. This version of Codesys and Codesys HMI are installed on a Virtual Machine running Windows Server 2019 Standard 64-bit. In attachment the archive of my project. The attached project has only one page, if "Enable Counter" is not pressed the "End of area" variable of the meter is not updated in the software, and everything work well, normal VISU and WebVisu; if "Enable Counter" is pressed, the "End of area" variable of the meter is updated in the software, and the WebVisu page start blinking. I tried also to enable the "Support client animations and overlay..." property at VisualizationManager, this seems stop the blinking problem, but that property also destroy my WebPage, moving almost all the graphical object, that also seem not working anymore. I really need help to understand what I'm doing wrong, I have to develop a bigger project and I have to understand if trend objects and animated meters cannot stay in the same page. In the final project the WebVisu will be very important because the customer will use this way to access the application to monitor the process. Regards
Last updated: 2024-05-06

Post by e13740e on Parameterized Property syntax for array element processing ^{CODESYS Forge talk (Post)}
Since parameterized (indexed) properties are not possible, I decided to use architectural approach "Indexing Property Adapter" to achieve the intended goal — avoiding code duplication for validated access to array elements. Essence: Create a Function Block Adapter (FB_PropertyAdapter) that encapsulates the logic for working with a single element of the target array (e.g., with one settings structure). Declare Properties inside the adapter block for accessing each individual field of the data structure. All validation logic is implemented within the Set accessors of these properties. Data Binding via VAR_IN_OUT: The adapter block receives a reference to a specific data element from the global array through its VAR_IN_OUT section, which ensures direct work with the original data without copying. Create an Array of Adapters: In the parent POU (e.g., FB_SettingsManager), an array of these adapter blocks is created — one for each element of the global array that needs to be managed. Initialize Bindings: In a FOR loop, each adapter instance from the array is given a reference to the corresponding data element. Result: This approach allows accessing the data via the index of the adapter array, and then through the property name, which simulates the behavior of an indexed property: MyAdapterArray[Index].MyProperty Thus, the validation and data access logic is written only once inside the adapter block and is then reused multiple times by creating instances of it in an array. This completely solves the problem of code duplication while providing a clean, scalable, and object-oriented architecture compatible with standard CODESYS features. Question closed.
Last updated: 2025-10-19

Post by installwhat on Error, visualisation property handling, VISU_USEPROPERTYINFO ^{CODESYS Forge talk (Post)}
same issue solved with this advice... thanks 3.5.19.5 project settings -> visualization -> advanced -...
Last updated: 2024-05-20

Is possible to transform a .sqlite file generated by a Trend Recording object to a .csv file? ^{CODESYS Forge talk (Thread)}
Is possible to transform a .sqlite file generated by a Trend Recording object to a .csv file?
Last updated: 2017-12-22

Post by davidking on Error, visualisation property handling, VISU_USEPROPERTYINFO ^{CODESYS Forge talk (Post)}
Solution: Disable VISU_USEPROPERTYINFO define Go to Project → Options (or Project → Properties, depending on your CODESYS version). Find the section called Compiler Defines. Look for the define: nginx Copy Edit VISU_USEPROPERTYINFO Delete it from the list, or uncheck it if it’s a checkbox. Save your changes and try compiling the project again. → This is the right approach if you don’t need property handling for visualization elements.
Last updated: 2025-07-09

Post by seler on Custom button with output status ^{CODESYS Forge talk (Post)}
Just to clarify. Output for lamp will have two inputs: from plc IN (wall switch) and from visu button. Until now I had separate object for visu button and separate for visu lamp. Now I want it to be one object, bulb icone which will change color on lamp status and yet by touching it will change visu button state. Tried "Switch Image" object but there is no way to assign switch var.
Last updated: 2025-11-19

Post by benediktenger on Access project information of references library by script ^{CODESYS Forge talk (Post)}
Hi, I need to accesss to project information of a referenced library in the project. At least I need the "Released" flag from these information to check that no project gets shipped with unreleased libraries. Unfortunally, I do not get this information by script. I archieved to get the library reference object and the managed library object but both won't give me this flag but only basic information like company, name, version, etc. Here is my code: # get the library refernces proj = projects.primary objects = proj.get_children(recursive=True) for object in objects: if object.is_libman: for libref in iter(object): if libref.is_placeholder and isinstance(libref.effective_resolution,str): print(libref) print(libref.name) # get the managed libraries libs = librarymanager.get_all_libraries() for lib in libs: print(lib.displayname) print(lib.version) Does somebody know how do get these information?
Last updated: 2023-10-23

Post by jerry-sorrells on Find Function: Object reference not set to an instance of an object. ^{CODESYS Forge talk (Post)}
Build: CODESYS 3.5 SP19 Patch 1 (64-bit) Host OS: Windows 10 Target: Linux SL I have a project with programs in Structured Text and Ladder Diagram. When I try to use the Find function, it works for the Active Editor; however, when I try to use Find for the Entire Project, I get the error "Object reference not set to the instance of an object." I know what this error means in the context of the program, but I have no idea why the find function is returning this error. The variable I am searching does not matter: it happens with all variables. Any help with this will be greatly appreciated. I generally use the Find function quite often as I am developing and not having it is really slowing me down.
Last updated: 2023-10-23

Post by liamb on Unable to add alarm configuration object to project ^{CODESYS Forge talk (Post)}
Yep that was the case, PLC didn't support it.
Last updated: 2024-09-27

Post by eschwellinger on No source code available for this object ^{CODESYS Forge talk (Post)}
first i would try to update to 4.18.0.0 (latest) SoftMotion version and try if same problem still occure.
Last updated: 2025-01-28

Post by mystx on No source code available for this object ^{CODESYS Forge talk (Post)}
hello It is any solution to use this fb in application other pou?
Last updated: 2025-01-28

Post by fneves on Learning ST in an object-oriented way. ^{CODESYS Forge talk (Post)}
Hi george32, try this on in Udemy. https://www.udemy.com/share/101YMC3@zr2J-jAAGiIEm54uOZ7JNmFPyMDjyUrXcb88IB9rkFRGgSiR57TQB03zklLlLtWx/
Last updated: 2025-06-16

Post by jeanjean on DonutChart ^{CODESYS Forge talk (Post)}
Hello Where i find a sample in CODESYS ton add DonutChart Object in a WebVisu ?
Last updated: 2025-10-07

Sort by relevance or date