Post by ppix on Establishing TLS Connection with MQTT Broker using MQTT Client SL Package ^{CODESYS Forge talk (Post)}
I’m currently working on establishing a TLS connection with an MQTT broker using the MQTT Client SL package in CODESYS. While I’ve successfully established communication with the broker without TLS, I'm encountering issues when trying to enable TLS. In the 'MQTT Explorer' application, I can easily upload the server certificate (.crt), client certificate (.crt), and client key (.key). However, in CODESYS, I can’t find a way to upload my client key (.key file). Here's a summary of my current setup: Certificates: I have uploaded both the client and server certificates to the certificate store under the 'Trusted Certificates' folder in the security screen. TLS Context Initialization: Despite setting the _sCommonName as the name of my client certificate, a new self-signed certificate is created and placed within the device’s certificates. I then need to manually move this certificate to the trusted certificates folder. This results in three certificates in my trusted certs folder: client cert, server cert, and the newly created cert. _ciDefaultCertInfo : MQTT.NBS.CERT_INFO := (psInfo := ADR(_sCommonName), udiSize := TO_UDINT(LEN(_sCommonName))); // CN of the certificate (common name) _sCipherList : MQTT.NBS.CIPHER_LIST := STRUCT(psList := ADR('HIGH'), udiSize := 4); // Cipher string see https://www.openssl.org/docs/man1.1.1/man1/ciphers.html _tlsContext : MQTT.NBS.TLSContext := ( sUseCaseName := _sCommonName, // A certificate is stored in the certificate store with the use case name. You can choose any name. Here we use the common name. ePurpose := MQTT.NBS.PURPOSE.CLIENT_SIDE, // For client certificates set this to NBS.PURPOSE.CLIENT_SIDE sTLSVersion := '1.3', // The TLS version sCipherList := _sCipherList, // Set the cipher list sHostname := sHostname, // The hostname of the broker udiVerificationMode := 2, // 2 => Active Peer verification ciCertInfo := _ciDefaultCertInfo, // Set the cert info itfCertVerifer := 0); // 0 => No Verifier mqttClient : MQTT.MQTTClient := (xUseTLS:=TRUE, itfTLSContext := _tlsContext, itfAsyncProperty := _asyncProperty); Additional Details: In the client FB, I’ve set uiPort:= 8883, xUseTLS:= TRUE, and configured itfTLSContext as mentioned above. The certificates are encrypted with SHA256RSA. sHostname is the IP address of my broker. I’ve attached a copy of the client FB, which shows straight lines where variables are assigned and boxes where they are not. I am currently trying this on the only 2 compatible versions of COSDESYS with my controller (V3.5.15.20 and V3.5.18.40) My Question: How do I correctly set up this mTLS connection? What might I be missing? Any guidance or suggestions would be greatly appreciated, especially considering I’ve already successfully established a non-TLS connection with the same broker. Thank you in advance for your help!
Last updated: 2024-06-19

Post by pra83 on CODESYS SoftRedundancy — Both PLCs stay standalone after network interruption — Auto recovery not working ^{CODESYS Forge talk (Post)}
Hello, We are facing a critical issue with CODESYS SoftRedundancy that we have been unable to resolve despite extensive troubleshooting. HARDWARE: 2× HP EliteDesk 800 G9 SFF Intel Core i7-14700 (20 cores) 16GB RAM, 512GB NVMe SSD Windows 11 IoT Enterprise LTSC 2024 NIC1: Built-in Intel GbE NIC2: Intel I210-T1 PCIe (NIC team) SOFTWARE: CODESYS Control Win V3 - x64 Version 3.5.22.10 CODESYS SoftRedundancy SL Server 1 IP: 172.10.10.101 (PLC1 — Active) Server 2 IP: 172.10.10.102 (PLC2 — Standby) CURRENT CODESYSControl.cfg: [CmpRedundancy] BootupWaitTime=120000 StandbyWaitTime=12100 SynchronousTimeout=12100 [CmpSchedule] ProcessorLoad.Maximum=80 WatchdogTime=12000 WatchdogTimeoutAction=0 CONFIRMED WORKING: PLC1/PLC2 identification configured via IDE Connection IP configured via IDE AutoSync enabled and written via IDE Normal Active/Standby operation working Server 2 auto-promotes when Server 1 completely fails PROBLEM DESCRIPTION: When NIC1 cable is removed from Server 1 — both servers go to standalone mode. When NIC1 cable is reconnected — both servers remain in standalone indefinitely. Neither server auto-recovers to Active/Standby without manual CODESYS service restart. AutoSync fires (!!! Autosync !!! visible in log) but recovery does not complete. Tested with direct cable (no NIC team) — same result. Confirmed not a hardware or NIC teaming issue. KEY LOG MESSAGES: "Timeout: No sync message RMSG_StartCycle (5) from master: Standalone" "Socket on other side closed gracefully 0" "Standby PLC: Open acyclic work socket failed" "Connection broke after 11806ms. Check BootupWaitTime." Autosync(fires but does not complete recovery) PCAP ANALYSIS (Wireshark): CODESYS sync stops completely at T+3s Server 1 sends TCP FIN on ports 1206 and 1208 at T+5s No CODESYS redundancy traffic for remaining 24 seconds Both servers stay standalone indefinitely WHAT WE HAVE TRIED: StandbyWaitTime = 12100ms SynchronousTimeout = 12100ms WatchdogTime = 12000ms (less than StandbyWaitTime) AutoSync enabled NIC2 set as Standby adapter Disabled Windows Network Discovery Direct cable test — rules out NIC hardware QUESTION: Per official CODESYS documentation: "No automatic Reconnect is included in the functional scope of the redundancy components. You can program the triggering of a reconnect." Is RDCY.Synchronize() the correct function to add to our application for automatic recovery after both PLCs go standalone? What is preventing auto-recovery when AutoSync is enabled and PlcIdent is correctly set? Thank you for your support.
Last updated: 14 hours ago

Post by jickisticki on Witch library? ^{CODESYS Forge talk (Post)}
Crafting my Fellowship Personal Statement was like weaving the threads of my aspirations into a tapestry of words. Each sentence became a brushstroke, painting a vivid portrait of my journey and ambitions. Beyond being just a document, it became a mirror reflecting the depth of my experiences. Like a conductor guiding an orchestra, my personal statement was composed to resonate with my unique voice. In the realm of specialized opportunities, this statement serves as a compass, guiding me toward the next chapter of my professional growth. With each word, I felt the guidance of mentors shaping my story into an eloquent narrative.
Last updated: 2023-08-17

Post by janderson on OPC UA Server limitations, large array crashes runtime ^{CODESYS Forge talk (Post)}
What are the limitations of the OPC UA Server? I am trying to get data off my PLC that is acquired at high rates (~50k samples/s) so I am storing them in arrays and trying to get the arrays off the PLC. When I attempt to read a ~200k element array through OPC UA the server and runtime crashes (requiring tools -> update linux arm64 -> start runtime). Is there a better way to get highspeed data off? The ACDatalog library seems a bit irritating to use so I would prefer to go through OPC UA.
Last updated: 2023-08-23

Post by rossanoparis on How to configure CODESYSControl_User.cfg in order to use a specific network card for OPCUA Server ^{CODESYS Forge talk (Post)}
Hello at all I'd like to know how to configure CODESYSControl_User.cfg in order to use a specific network card for OPCUA Server. In the past, I tried to ask in "Forge" about this topic, but I could find neither help nor document informations about it. Reading the file "codesyscontrol.log" I see these logs OPC UA Server Started: Hostname: NTLRPICTRL01, Port: 4840 URL: opc.tcp://NTLRPICTRL01:4840 Loopbackadapter activated. **All available networkadapters are used.** Multithreading activated. 3 workers used. My controller, which is a Linux PC, has got two network cards eth0 and eth1 I whant to use the card with name "eth0" as a server for OPCUA and keep the "eth1" free for other stuffs. Is it possible ? Best regards Rossano
Last updated: 2023-08-25

Post by manuknecht on Specify Input Configuration "OnDialogClosed" Action to only react to certain Dialogs ^{CODESYS Forge talk (Post)}
I have a project with several buttons and dialogs. Most of the dialogs are opened using the Open Dialog action of the Input configuration of the buttons. Some dialogs are openend using the FbOpenDialogExtended FB of the Visu Utils library and the FbOpenDialogExtended FB is called in the Execute ST-Code action. I am also using the FileOpenSave dialog from Visu Dialogs which requires an OnDialogClosed action to read out. I realized that the OnDialogClosed action which is meant for the FileOpenSave dialog also triggers if a dialog is closed, which was previously openend using the FbOpenDialogExtended FB. Is there a way to detect which dialog was closed last and specify to which dialogs the OnDialogClosed action reacts?
Last updated: 2023-09-20

Post by alimans on Hex string ^{CODESYS Forge talk (Post)}
Hi kdkwhite, for Word you still can use suggested code by using a union structure and crack down your Word to two byte as bellow: TYPE CrackWordToByte : UNION InWord : WORD; OutBytes : ARRAY [0..1] OF BYTE; END_UNION END_TYPE then define your variable as this type: udInput : CrackWordToByte; now assign your Word variable input to InWord and send OutBytes[x] to the mentioned method: udInput.InWord := WordVariableInput; Input := udInput.OutBytes[x]; Regarding your question about the code: actually 48 is ascii code of "0" and while 65 is the ascii code of "A" so in above code 55 + 10 would be 65.
Last updated: 2023-09-20

Post by ggarcia94 on CANOPEN SDO configuration ^{CODESYS Forge talk (Post)}
Hello, I´m connected to two drives via CANOPEN. The connection seems to be ok. However, I´m not able to get the PDOs to work even tho they are configured as in the manual of the drives. Looking at the SDOs I´ve seen that for each PDO there is a "Disable PDO" SDO that does not exist in the manual or in the EDS file of the drives. This "Disable PDO" signal has the same Index and Subindex as another SDO used to set and enable the COB-ID of the PDO. I´m assuming this is normal but why is Codesys creating a "Disable PDO" SDO for each PDO and could that be the reason the PDOs are not working?
Last updated: 2023-09-25

Post by matthew on New Ladder Editor Issues ^{CODESYS Forge talk (Post)}
Hi There, When using the new ladder editor there is no option for function blocks to Remove uncalled FB call parameters. I also see no update function block. When you double click the function block it no longer opens the function block. I also now get warnings if I insert FB call without a contact in front. Warning is: (Impl)): C0373: Expression or part of it has no effect I take it the new editor must work differently? The only reason for using new ladder editor is the ST execute/block editing is far better, If you have alot of text in the old ST execute the editor window is very small and when online it's even worse. The new ST block seems a lot better Thanks!
Last updated: 2023-10-10

Post by smartcoco on The text list provided outside the library is not available for visualization controls within the library. ^{CODESYS Forge talk (Post)}
I have a project called 'DemoProject' and a library called 'DemoLib'. Create a visual control named "DemoVisu" in the library, with a selection box of type "ComboBoxInteger" in the space. Now 'ComboBoxInteger' requires a 'Text list'. This "Text list" is provided when I call the "DemoVisu" control of the "DemoLib" library in "DemoProject". And this text list is in 'DemoProject'. I found that 'ComboBoxInteger' no longer works at this time. Other visual controls that use text lists also have this issue. I hope there is a good solution to this problem.
Last updated: 2023-10-16

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 simotion on Pointer to Softmotion axis ^{CODESYS Forge talk (Post)}
In my projet I use Softmotion. There are several Softmotion axis (type SM_Drive_Virtual). In the Global Variable List I have an array of pointers to the adress of the Axis. Axis : ARRAY[1..iMaxCntAxes] OF POINTER TO AXIS_REF_SM3 := ADR(AX01_Axis), // [1 ADR(AX02_Axis), // [2] This works, but when compiling I get the message : . [WARNING] E3D: GVL Device: PLC Logic: Application: C0564: A reference to uninitialized variable AX01_Axis is used for initialization of Axis. Accessing the uninitialized variable may result in unexpected behavior. [WARNING] E3D: GVL Device: PLC Logic: Application: C0564: A reference to uninitialized variable AX02_Axis is used for initialization of Axis. Accessing the uninitialized variable may result in unexpected behavior. Is there a way when initializing to force the hardware (softmotion axis) to first initialize and then the Global Variable List?
Last updated: 2023-10-25

Post by pascaljt on Function block for Ethernet/IP ^{CODESYS Forge talk (Post)}
Hello, I program a function for an Ethernet/IP controller. I made a structure with input and output corresponding with the map of my controller for the function block. My problem is that I don't know how to do the link between the controller and my PLC (CC 100 from Wago). The addresses declare in Codesys are illogic, The first addresses are 12 and 13 then 7 then 4. How to do corresponding the addresses of the controller and the input / output structure ? IP adress ? Does I must create the all variables of controller with the controller adresses to use with the function block ? Thanks for your help. (I hope I'm clear, I'm not english)
Last updated: 2023-10-26

Post by janber0206 on Lizenz lässt sich nicht aktivieren für Revolution Pi ^{CODESYS Forge talk (Post)}
Ich versuche grade die Lizenz für den Revolution Pi zu aktivieren, das hat auch schon im Laufe eines Jahres 20 mal geklappt, jetzt bekomme ich grade nur die Fehlermeldungen zu sehen in den angehängten Screenshots. Die Aktivierung der OPC-Client Lizenz lief ohne Probleme geht nur um die aktivierung für die Codesys Control for Raspberry Pi MC SL. Ich habe sowohl die Webaktivierung versucht als auch in der Codesys IDE, im Lizenz Manager versucht die Lizenz zu aktivieren. Aktivierung mit Dongle kommt nicht infrage da die bei Endkunden eingebaut werden. Hatte jemand ähnliche Probleme, bzw. weiß jemand wie das zu beheben ist? MfG Jannis
Last updated: 2023-10-27

Post by bernd on Version 3.5.19.40 probleme bei FUN mit _to_ im Name ^{CODESYS Forge talk (Post)}
Hallo, ich habe von Version 3.5.19.0 auf 3.5.19.40 hochgerüstet, jetzt bekomme ich bei allen FUNs die "to" im Namen haben einen Fehlermeldung. Oft in der OSCAT.LIB verwendet. Gleiche Meldung wenn ich einen FUN neu anlege. Sobald ich das to weglasse z.b. nur "t" ist der Fehler weg. Programm ist unverändert. Fehlermeldung: Typ.... wird nicht unterstützt. Hat jemand das gleiche Problem? Bzw. wo liegt das Problem? Bzw. nutzt jemand das SP4 und bei ihm kommt der Fehler nicht? Läuft bei mir auf Rasperry. Beispiel: DT_TO_SDT -> Fehlermeldung Typ DT_TO_SDT wird nicht unterstützt. DT_T_SDT -> Übersetzung Fehlerfrei
Last updated: 2023-11-09

Post by martin-k on Beispieldateien finden / Inhalt der Packages ^{CODESYS Forge talk (Post)}
Hallo, ich habe https://store.codesys.com/de/codesys-in-building-automation-examples.html runtergeladen und mit dem Installer und Adminrechten installiert. Jedoch finde ich auf C: keine *.project* Dateien. Kann mir jemand erklären wie ich an die Examples dran komme? Auch von Wago habe ich Packages bekommen in denen Beispiele enthalten sind. Auch hier finde ich nix. (Googel habe ich gefragt. Aber mit den Stichworten kommen viele Treffer die alle nicht hilfreich waren.) In der Hilfe von Codesys habe ich natürlich auch gesucht, aber auch hier nichts erklärendes gefunden. Angeblich findet sich was in C:\Programme\CODESYS 3.5.19.40\CODESYS\Projects oder auch unter C:\Users\BENUZTERNAME\CODESYS Examples Aber wie geschrieben finde ich auf C:\ nix was ein Beispiel wäre. Wäre echt super wenn mir jemand einen Hinweis geben könnte. Danke im Vorraus, Martin
Last updated: 2023-11-16

Post by martin-k on Beispieldateien finden / Inhalt der Packages ^{CODESYS Forge talk (Post)}
Hallo, mal wieder war der Fehler vor dem Computer, bzw. waren es die Programmierer. Die Dateien sind tatsächlich im Ordner C:\Users\BENUZTERNAME\CODESYS Examples Aber nicht in dem der vor dem Computer sitzt, sondern im Administrator-Verzeichnis. Eine mächtig dämliche Sache. Und das alles ohne Hinweise in irgendwelchen Anleitungen oder Meldungsfenster beim installieren. Bei meiner suche mit *.project habe ich natürlich keine Adminrechte, deswegen wurde mir nichts angezeigt. Danke an alle die meine Beiträge gelesen haben. Danke an alle die darüber nachgedacht haben :-) Vielleicht hilft mein Thread mal jemandem. Gruß Martin PS: Mache Firmen nennen die Beispieldateien nicht Examples sondern Samples.
Last updated: 2023-11-17

Post by fabian on Sys Process Execute Command ^{CODESYS Forge talk (Post)}
Hello, I have a question: Once the command is being executed, is there a way to kill it again? As the called application is running in the background, the user can't close it but it shall be closed/terminated, commanded by codesys. I have tried with "SysProcessTerminate" but I guess this is not correct as the RTE crashes when this function is called. Starting the application: IF GVL.xStrtQR THEN GVL.xStrtQR := FALSE; SysProcess.SysProcessExecuteCommand2(pszCommand:=sCmd, pszStdOut:=stdout, udiStdOutLen:= SIZEOF(stdout),pResult := ADR(GVL.pResQRTsk)); END_IF Trying to stop it again: IF GVL.xTrmQR THEN GVL.xTrmQR := FALSE; pResTerm := SysProcess.SysProcessTerminate(hProcess:=SysProcess.SysProcessGetCurrentHandle(pResult:=ADR(GVL.pResQRTsk))); END_IF Codesyscontrol Win x64, 3.5.19.10. Many thanks for any advice pointing to the correct direction.. :-) Regards, Fabian
Last updated: 2023-11-17

Post by felipemsgarcia on Edge Gateway online, but PLC is not online ^{CODESYS Forge talk (Post)}
Hello, Up until yesterday (2023/11/20) I was able to connect to the PLC remotely with no issues through Edge Gateway. However, today I can see the Edge Gateway online but I can find the PLC even if I do a network scan. Following the same path as janber0206 @ https://forge.codesys.com/forge/talk/automation_server/thread/e78b11d7e9/, I looked into certificates and found that one of the Trusted publisher certificates has expired earlier today (2023/11/21). Please see image. Questions are: Does it affect the connection to the PLC through Edge Gateway? How do I fix it? Thank you very much in advance!
Last updated: 2023-11-21

Post by captaincookie on SP19 Runtime Zugriff auf lokales Dateisystem ^{CODESYS Forge talk (Post)}
Hallo, das konkrete Problem konnte ich seither leider nicht lösen, allerdings habe ich mit SP19 Patch 4 einen Workaround gefunden, der zumindest für meine Anwendung funktioniert: Zunächst besteht das Problem nicht für alle Funktionalitäten gleichermaßen. Die Anzeige einer .bmp oder .tiff-Datei im Visu-Elementtyp Bild beispielsweise funktioniert aus dem lokalen Dateisystem. Die Anzeige von .cnc-Dateien in einer Tabelle dagegen nicht. Allerdings funktioniert das wiederum, wenn der Dateipfad in den Ordner der PLC führt, genannt '_cnc'. In der PLC wird dieser Ordner über den Pfad _cnc/ erreicht. Auch lohnt es sich einen Blick in die PLC Config-Datei zu werfen und ggf. Anpassungen vorzunehmen. Einzelne Einträge definieren Zugriffsrechte und ähnliches. Die beschriebene Lösung ist nicht sonderlich schön und es erklärt das Problem nicht. Vielleicht kann das noch jemand anders beantworten.
Last updated: 2023-11-22

Post by eschwellinger on SP19 Runtime Zugriff auf lokales Dateisystem ^{CODESYS Forge talk (Post)}
seit SP19 nur noch im PLcLogic pfad. c:\ProgramData\CODESYS...usw datein schreiben lesen [SysFile] PlaceholderFilePath.1=/tmp, $TMP$ PlaceholderFilePath.2=/media/usb, $USB$ PlaceholderFilePath.2.Volatile=1 Seit der Behebung kann der IEC-Code aus Security-Gründen nur noch auf das Arbeitsverzeichnis PLCLogic zugreifen. Sollte auf Dateien außerhalb dieses Pfades zugegriffen werden müssen, dann können diese per Platzhalter bekannt gemacht werden und sind dann zugreifbar. Darüber hinaus kann weiterhin ForceIecFilePath=0 gesetzt werden, um das bisherige Verhalten wiederherzustellen. Von letzterem raten wir aber dringend ab, da dann der IEC-Code wieder auf das gesamte Filesystem zugreifen kann. Daher sollte beides nur nach einer eingehenden Securitybewertung erfolgen.
Last updated: 2023-11-23

Post by riccardo on Management of a PLC network from a remote station ^{CODESYS Forge talk (Post)}
Goodmorning, I would need to set a control station that can manage a PLC network. In short I need to access to all visu programmed in any PLC of the network (LAN). I was thinking to use a PLC with buttons that call, by mean an IP address, the visu of any PLC. I don't know if it is possible but I saw that there is a RemoteVisuTarget that run CODESYS Control Win V3. Can someone suggest me how to create a remote main control station from a normal PC? Thanks, Riccardo
Last updated: 2023-11-27

Post by seppi on Establishing communication between a Raspberry Pi 4 and an Arduino UNO R3 using I²C. ^{CODESYS Forge talk (Post)}
Hello everyone, I want to establish communication between my Arduino and my Raspberry Pi via I²C, but I have no idea how to make it work. However, it should work because there are many examples available, although none of them were programmed using Codesys, but rather using Python. My Raspberry Pi will be the master and is supposed to exchange measurement data such as speed and battery capacity with the slave (Arduino). I would be very grateful if someone could help me with my problem. Here is another link that could be helpful. However, I can't find the mentioned libraries
Last updated: 2023-12-03

Post by seppi on Raspberry 4 I²C with Arduino UNO R3 ^{CODESYS Forge talk (Post)}
Hallo zusammen Ich möchte meinen Arduino und meinen PI miteinander kommunizieren lassen via I²C doch ich habe keine Ahnung wie das funktionieren soll. Aber es müsste funktionieren da es viele Beispiele dazu gibt jedoch wurde keines der Beispiele mit Codesys programmiert sondern über Python. Mein PI wird der Master sein und soll mit dem Slave (Arduino) Messdaten wie Geschwindigkeit und Akkukapazität und so weiter austauschen. Wenn mir bei meinen Problem jemand weiterhelfen könnte währe ich sehr Dankbar. Hier noch ein Link der Hilfreich sein könnte. Ich finde aber die angegeben Bibliotheken nicht. https://forge.codesys.com/forum/en/773/genmed-documentation.pdf
Last updated: 2023-12-03

Post by dkugler on Management of a PLC network from a remote station ^{CODESYS Forge talk (Post)}
I would figure out, how to create a simple html webpage with 2 frames. One frame with buttons to select the plc. A second frame with hyperlink to the webvisu of the plc ("XXX.XXX.XXX.XXX:8080/webvisu.htm"). Selecting other PLC Button has to change the hyperlink in 2. frame. Costs only some time to figure out :-) Or setup a raspberry Pi with small visualization. Set up a button for each plc and add one browser element. Each button writes the URL of the depending plc to the URL setting of the browserelement. Costs 55€ for runtime licence and a Raspberry Pi.
Last updated: 2023-12-04

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