Post by eschwellinger on new feature: list/view plclogs from the plcs
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Since 1.31.0.0 version there is this really helpful feature to browse the plclogs remote via CODESYS Automation server:
Last updated: 2023-08-30
Post by hwillems on Ranges, Lambdas, on Fixed arrays of structs
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I do datastructures and algorithms in Codesys. For example a Struct of Person with thing's like IdNumber, Name, Age etc. as example. Now i do all kind of calculations, filters. So i have this pretty big Fixed Array with Structs. On this struct i want to do simple stuff you can do easily in C++/Python/Rust etc. For example i want to do this: AvererageAge := Average(Peoples.Age); Then it will return the average of all members ages. Or Sort struct on age etc. Or sort on alphabetical Name. Or use Lambda functions to filter/mutate out things like, filter out everybody above 18 years old. Or remove people who it's name start with "A". Currently i have to write my own custom function for example sorting on Age. And make a super specific function based on that particulare datastructure. Here an Example: (*Before calling this FIlter method, set the mNodeFilterSwitch to the desired filter.*) CASE mNodeFilterSelect OF (********************************[ Status Filters ]***********************************) NodeID: FOR x := ACS_OUT_BEGIN TO ACS_OUT_END BY 1 DO FOR y := ACS_IN_BEGIN TO ACS_IN_END BY 1 DO IF marrNode[y].Status.oiNodeID > marrNode[y + 1].Status.oiNodeID THEN mNodeTemp := marrNode[y + 1]; marrNode[y + 1] := marrNode[y]; marrNode[y] := mNodeTemp; END_IF; END_FOR; END_FOR; Started: FOR x := DES_OUT_BEGIN TO DES_OUT_END BY -1 DO FOR y := DES_IN_BEGIN TO DES_IN_END BY -1 DO IF marrNode[y].Status.oxStarted > marrNode[y - 1].Status.oxStarted THEN mNodeTemp := marrNode[y - 1]; marrNode[y - 1] := marrNode[y]; marrNode[y] := mNodeTemp; END_IF; END_FOR; END_FOR; Starting: FOR x := DES_OUT_BEGIN TO DES_OUT_END BY -1 DO FOR y := DES_IN_BEGIN TO DES_IN_END BY -1 DO IF marrNode[y].Status.oxStarting > marrNode[y - 1].Status.oxStarting THEN mNodeTemp := marrNode[y - 1]; marrNode[y - 1] := marrNode[y]; marrNode[y] := mNodeTemp; END_IF; END_FOR; END_FOR; END_CASE; I have like 30+ of these in the enum. Not really DRY code right? These are custom made bubble sort filters in a function. You pass in the Datastructure, and say what function you want. (This is an enum collection of sorting functions) And then the Array with Nodes of Structs gets ordered. Why can't we have Iterators and Lambda's and build in standard functions like regular languages? Also i use bubble sort because it's the easiest to implement because i can't get this to code DRY. Problem with ST (Even the new one with classes) that it's very limited for programming datastructures and algorithms. Yes you still not want dynamic memory and you need to choose the correct algorithm so you know the most extreme edge cases regarding the time it takes to execute the algorithms.(Real-time execution) How are other people dealing with this? Here for example saw some software using an adjusted ST language and having FOR EACH possibility: https://www.fernhillsoftware.com/help/iec-61131/structured-text/st-for-each.html You can then build your own custom Iterator functions. I wish the IEC 61131-3 standard would be more expressive and having more standard modern features, but still keep close to the fact of no dynamics memory and real-time systems.
Last updated: 2023-08-31
Post by jegerjon on VPN
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Hi, witch VPN provider for remote PLC Acess do you use/recomend? Preferedbly one where you can Grant certain users acess to specific controllers.
Last updated: 2023-09-06
Post by jegerjon on VPN
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Hi, witch VPN provider for remote PLC Acess do you use/recomend? Preferedbly one where you can Grant certain users acess to specific controllers.
Last updated: 2023-09-06
Post by jegerjon on VPN
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Hi, witch VPN provider for remote PLC Acess do you use/recomend? Preferedbly one where you can Grant certain users acess to specific controllers.
Last updated: 2023-09-06
Post by jari-koivuluoma on JSON_Utilities_SL JSONFileWriter error NULL_POINTER
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FB jsonFileWriter gives a NULL_POINTER error, why? JSONByteArrayWriter works fine so the JSONData FB should be fine. The device is CODESYS Control Win V3 x64 in simulation mode. Codesys version is V3.5 SP16 Patch 5 JSON_Utilities_SL version is 1.3.0.0 Src: ST_TestStruct1a; TXT: WSTRING(10000); MakeJSON : BOOL := TRUE; SrcJSONData: JSON.JSONData; jsonFileWriter : JSON.JSONFileWriter; IF MakeJSON THEN MakeJSON := FALSE; // Struct data to JSONData FB F_TestStructToJSON(ADR(Src),ADR(SrcJSONData)); // Writing to file jsonFileWriter( xExecute := TRUE, sFileName := 'c:\JSONTEST\JSON.txt', eEncoding := JSON.Encoding.UTF_16, xAsyncMode := TRUE, jsonData := SrcJSONData ); // Waiting to finish WHILE jsonFileWriter.xBusy DO ; END_WHILE // To text jsonArrayWriter( xExecute := TRUE, pwData := ADR(TXT), udiSize := SIZEOF(TXT), jsonData := SrcJSONData, xAsyncMode := FALSE, ); END_IF
Last updated: 2023-09-08
Post by eschwellinger on Project compiling error in Simulation mode
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I fear you need to update if you need a solution for this.
Last updated: 2023-09-08
Post by necatibilgin on How to access files correctly in Linux
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This may help you. https://forge.codesys.com/forge/talk/Engineering/thread/3da9ded84e/?limit=250#62b3
Last updated: 2023-09-12
Post by transmin01 on EL6751 Canopen_Manager issue
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Fixed, in the end it just required the target to be rebooted. DOH! Regards Trevor
Last updated: 2023-09-12
Post by timvh on Get the numer of day
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For a demo application related to date/time, see: https://forge.codesys.com/prj/codesys-example/date-and-time/home/Home/
Last updated: 2023-09-14
Post by eschwellinger on EtherCat Master cannot open network adaptor on Win10x64 target
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you need to have either Winpcap (versions < CODESYS 3.5.19.0) or Npcap installed
Last updated: 2023-09-20
Post by aott33 on Webvisu NO load
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After loading, it seems to be quite responsive. It's just the initial loading that is taking a long time.
Last updated: 2023-09-21
Post by hki75 on FILE_OPERATION_DENIED
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mmm.. I moved my file to /var/opt/codesys/PlcLogic directory but I still getting FILE_OPERATION_DENIED.. Did I miss something? file rights are 0755
Last updated: 2023-09-27
Post by derpaul on Official MQTT-Client: MAX_RECEIVE_BUFFER_SIZE_EXCEEDED
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Okay, i've extendet ist from 6000 to 20000, but the error is still present :-(
Last updated: 2023-09-28
Post by derpaul on PFC200 Update to 4.9.0.0 - No Connection
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Im running again. I did a firmware update and Runtime update -> PFC200 is online again Thank you very much
Last updated: 2023-09-28
Post by eschwellinger on The required device description is not installed..
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just rightclick to the second J1939 device in the devicetree and 'update device'
Last updated: 2023-10-03
Post by eschwellinger on Delete PLC Log
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logger is a ringbuffer - means depends on your settings - how fast the files will be overwritten - but this should never lead to PLC hangs
Last updated: 2023-10-16
Post by i-campbell on FILE_OPERATION_DENIED
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in your project, to access /var/opt/codesys/PlcLogic/my.file, use the string 'my.file' or '$$PlcLogic$$/my.file'
Last updated: 2023-10-17
Post by arnaud on eCockpit - unable to start simulation
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Thanks for your help. Seems like one of these libraries are the root cause indeed.
Last updated: 2023-10-20
Post by benediktenger on Access project information of references library by script
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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.
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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 janber0206 on Gateway doesn't come online, regarding a working internet connection
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Solved (see comment) Setup: Kunbus RevPi Connect+ (a raspberry based PLC) Codesys runtime package: 4.5.0.0 (raspberry, armhf) based on Codesys V3.5.18.20 Edge Gateway: 4.5.0.0 (edgearmhf,armhf) EN: The edge-gateway was added over a year ago to the automation server. I now need to make a few changes to the Codesys software, but the Pi is not showing as online in the Automation Server. Internet connection is established, I have remote access to the Pi via RealVNC. Anyone have an idea how I can solve this? Some screenshots added. DE: Ich muss nun ein paar Änderungen an der Codesys-Software vornehmen, aber der Pi wird im Automation Server nicht als online angezeigt. Die Internetverbindung ist hergestellt, ich habe über RealVNC Fernzugriff auf den Pi. Hat jemand eine Idee, wie ich das Problem lösen kann?
Last updated: 2023-10-26
Post by masmith1553 on Focus/Selection color frame around the element
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Is there a way to control what element is in focus?
Last updated: 2023-10-27
Post by helcioburd on When using the Element Collections library, is there a proper way to remove a dynamically created collection from memory?
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I am having exactly the same question...
Last updated: 2023-10-31
Post by dhumphries on install codesys runtime on linux
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Adding the command worked. I was able to deploy the runtime on an ubuntu server installation. Thanks!
Last updated: 2023-11-04
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