Post by john-ronald on Communication error (#0), logout performed,please check if plc is connected ^{CODESYS Forge talk (Post)}
Hi, I have the same problem. However I am using ethernet connection not USB. I can ping the PLC and also connect to it via Wago ethernet settings, but I cannot upload using the Codesys 2.3. My PLC is Wago 750-862. The detailed error is - " connect: Connection refused Write attempt from invalid socket. " Any help would be appreciated.
Last updated: 2023-09-11

Post by damian177 on Codesys MQTT subscribe ^{CODESYS Forge talk (Post)}
Hi, In my project I have MQTT Client like below: //mqtt client mqttClient( xEnable:=connect_to_broker, sHostname :=sHostname, uiPort:= uiPort, xUseTLS:=FALSE, wsUsername:="", wsPassword:="", xCleanSession:=TRUE, sClientId:='694d45587761676f4b6f6e74656e6572', pbWillMessage := ADR(sWillMessage), uiWillMessageSize:=DINT_TO_UINT(Stu.StrLenA(ADR(sWillMessage))), xWillRetain:=FALSE, udiTimeOut:= 10000000); And ten subscriber's , one of those is below: //subscribe a topic1 mqttSubscriber_S1(xEnable:=subscribe, eSubscribeQoS := 0, pbPayload:=ADR(sSubscribeMessage_S1), udiMaxPayloadSize :=SIZEOF(sSubscribeMessage_S1), mqttClient:=mqttClient, wsTopicFilter:=wsSubcribeTopic_S1); TerminateString(ADR(sSubscribeMessage_S1), mqttSubscriber_S1.udiPayloadSize); After connected to broker I set subscribe to TRUE in alls subscribers and my mqttclient recive error : ACKNOWLEDGE_TIMEOUT what can be wrong ?
Last updated: 2023-10-11

Post by tehthoams on Library Search not working ^{CODESYS Forge talk (Post)}
Hello All! Having a strange issue. When adding a library, I'm unable to search. Each time a window pops up 'creating the search index' and then has 0 results. I have the same behavior when using the library repository and pressing the 'Find' button. I wonder if there is a way to reset or fix this issue? It is making it very difficult to search and find proper libraries to add to my project. Much appreciated.
Last updated: 2023-10-17

Post by mmoncada on Dinamically loading recipes ^{CODESYS Forge talk (Post)}
I'm having trouble with the initial loading of recipes. I can create them and load one or the other, but when the program restarts the recipes are not listed. I'm calling: RecipeManCommands.ReloadRecipes and then RecipeManCommands.GetRecipeCount which returns 0 recipes. None of the methods returns error and if i call them again after RecipeManCommands.CreateRecipe RecipeManCommands.ReadAndSaveRecipe getRecipeCount returns the number of recipes created. When i restart the system, once again they are not listed even though the recipe files are there. Any ideas? Martin Btw, Codesys 3.5 SP 16 Path 9
Last updated: 2023-12-06

Post by nikgind on Codesys Communication Manger - Required information model version exists in the model repository but is not found ^{CODESYS Forge talk (Post)}
Hi, yes i did solve it. You have to change the namespace 0 model in the UaModeler. Open the modeler --> Settings --> Edit Settings --> scroll down to the last option "External Model Support" --> Check "Allow replacing built-in..." Now create a new project in the UaModeler. If you have to choose your base models, you can see the option "Find another Opc.Ua.NodeSet2". I have attached the .xml i am using.
Last updated: 2024-06-28

Post by alexgooi on OPC-UA Boolean format ^{CODESYS Forge talk (Post)}
Dear Forum, We are currently making the switch from OPC-DA (Codesys server) to OPC-UA (Running on a Codesys controller). We are using Codesys version 3.5 SP 20. Our Scada system is expecting Boolean's to be represented as a 0/1 (True Boolean) but the OPC-UA server is representing a boolean as False/True This indeed matches the OPC-UA standard, but is there a way to configure the OPC-UA server's boolean representation? Thank you in advance
Last updated: 2024-08-06

Post by liamb on Converting CANbus to Decimal from signed 2's complement ^{CODESYS Forge talk (Post)}
I need to combine two 8 bit CANbus messages to 16 bits signed int then convert to decimal Decimal from signed 2's complement. I've been using the below code to read for new messages, combine them then assign them to a variable What is the best way to do this for from signed 2's complement? fbRxMessage351(Data := RxMessage351Data); IF fbRxMessage351.NewMessage THEN ChargeVoltage := (WORD_TO_REAL((RxMessage351Data[0]) + ((RxMessage351Data[1]) * 256))) * 0.1; END_IF
Last updated: 2024-08-16

Post by c3po on Visualisierung wechseln über SPS Variable Codesys 3.5 ^{CODESYS Forge talk (Post)}
Sì senor: https://www.helpme-codesys.com/help-sp17-lower.html Abgeschaltet! Peinlich! Ah ich liebe es in Foren nachfragen zu müssen, weil der Support NULL funktioniert. Dieser freundliche Ton immer ô.0 Da bitte, meine Suche: https://www.helpme-codesys.com/search.html?L=1&id=888&tx_solr%5Bq%5D=current+visu 1. Link angeklick: https://content.helpme-codesys.com/en/libs/VisuElemBase/Current/Private-Implementation/pou-Visu_PRG/DoCurrentVisuHandling.html (2. und 3. Link haben mir auch nicht groß weiter geholfen, also habe ich dieses Forum kontaktiert) thx for your help!
Last updated: 2024-08-27

Post by agilename on J1939 manager DM1 message reading ^{CODESYS Forge talk (Post)}
https://content.helpme-codesys.com/en/CODESYS%20CANbus/_can_f_j1939_diagnosis_application.html you need this : VAR J1939_ECU:j1939.J1939RemoteECUDiag; DM1_ :j1939.DM1_Read; DTCliste : J1939.idtchandlerList; DTCWriter : j1939.DTCBufferWriter; arDTC:ARRAY[0..MaxDTC]OF j1939.DTC; END_VAR VAR CONSTANT MaxDTC:UDINT :=100; END_VAR DM1_( xEnable:=TRUE, xDone=> , xBusy=> , xError=> , itfSourceECU:= J1939_ECU, //My CAN J1939 ECU itfDTCHandlerList=> DTCListe , udiDTCCount=> , MalfunctionIndicatorLamp=> , RedStopLamp=> , AmberWarningLamp=> , ProtectLamp=> , xReceived=> , eError=> ); DTCWriter( xEnable:= TRUE, itfDTCHandlerList:=DM1_, eError=> , pDTCBuffer:=ADR(arDTC) , udiDTCBufferCount:=MaxDTC , udiDTCReceiveCount=> , udiDTCLostCount=> , xReceived=> );
Last updated: 2024-09-05

Post by naps on Welchen I-Port benötige ich? ^{CODESYS Forge talk (Post)}
Hallo, ich versuche eine 750-653(konfiguriert per iocheck) über die Wago Modbus Lib einzusetzen. Ich scheitere im moment an dem Korrekten I-Port. Ich habe es mit 75x_653 und IoConfig_Globals.75x653 versucht, jedoch bekomme ich folgenden fehler: ------ Übersetzungslauf gestartet: Applikation: Device.Application ------- Code typisieren... Code erzeugen... [FEHLER] Unbenannt7: POU_1 Device: SPS-Logik: Application: C0032: Typ 'DED.CAADiagDeviceDefault(caa device diagnosis, 3.5.20.0 (caa technical workgroup))' kann nicht in Typ 'WagoTypesCom.I_WagoSysComBase(wagotypescom, 1.6.2.3 (wago))' konvertiert werden Übersetzung abgeschlossen -- 1 Fehler, 0 Warnungen : Kein Download möglich Wie kann ich den die Karte benutzen?
Last updated: 2024-10-01

Post by balazska2 on Position values with integer variables ^{CODESYS Forge talk (Post)}
Hello guys! https://content.helpme-codesys.com/en/CODESYS%20Visualization/_visu_elem_label.html My question: Could I give an integer variable to the Position records (in the Element list => Position => width / height)? If yes, how? I defined a TEST integer variable with 300 value. I tried to add this variable to the width record (.TEST or only TEST), but if I saved, the value jumps back to 0. Thanks for your help! :)
Last updated: 2024-10-03

Post by mini-developer on Profinet Exor connection drop ^{CODESYS Forge talk (Post)}
Hello, I have a Exor HMI with 2 seperatred ETH interface's. It is Configured as PN Master on ETH interface 1 and the IO's are working, as long as the development PC is connected to the ETH 0 interface. When the PC is disconnected, the PN communication drops and a reconnection is started. I installed the newest device description for Codesys and Firmware for the Panel. The IO Gateway is from Weidmueller What could cause the Problem?
Last updated: 2024-10-16

Post by garrian on How to write multiple coils (Modbus FC15) ^{CODESYS Forge talk (Post)}
Thanks for your reply. I belive it is contiguous, I'm writing to adress 0 to 4. Or, do you mean something else? Well, something is happening. If I on the client set adress 1,2,3 to true, only 1 is set to true on the server side. On the client side, the data is array of word. But on the server side, the coils are array of bool. Holding register is array of word on server side. Can this be a problem? Attached screenshot of how it looks at the server side.
Last updated: 2024-11-17

Post by struccc on Application failing to boot after system reboot ^{CODESYS Forge talk (Post)}
I started to experience the same issue, after upgrading to 3.5.19 , and still persists with 3.5.20.3 , using CodesysControlWinV3 x64 on Windows. Unfortunately, this is a live application, normally it is running for months without interruption - so it was a surprise at the last cold start... It was not possible to go online with the original version, so I couldn't see the application, or system status, just the log message. First time I manually clean the Application from the PlcLogic directory (there was no coredump file in there), then I could start the runtime service, and do a fresh download, and set the bootproject. I could not try a cold system reboot - it's in a 24/7 production environment, and I was under heavy pressure to start... What I did, I have created a backup from the * complete * runtime directory, from the failed, and fixed version - before and after download. This directory in my case C:\ProgramData\CODESYS\CODESYSControlWinV3x64\55096128 - At the next shutdown, it was sufficient to copy back this backup completely, and could start the runtime service afterwards. Ugly, but local staff with some skills can do it without programming tool... I don't store any live data, configuration, log files, persistent data in this directory - the only reason I need this is to edit the CodesysControl... .cfg file.... And to see the logfiles in emergencies like this. The application concerned doesn't use any retain area. - exactly for these reasons - Maybe that is causing the problem with the newer runtime versions As far as I see, this problem occurs only if the power of the Windows PLC is interrupted without a proper shutdown. Unfortunately, this can happen sometimes. The newer versions, seems tp modify CodesysControl.cfg on the fly, and register the applications, and bootproject information after download. (I don't really see CodesysControl.cfg a proper location for this... but that's just my feeling) So now I had a look at CodesysCotrol.cfg on my laptop and I found: [CmpRetain] ;Retain.SRAM.Size=0x200200 ;Retain.SRAM.Address=0xFA3C5776 ;SimulateSRAM=1 [CmpApp] ;Bootproject.CreateOnDownload=0 ;Bootproject.StoreOnlyOnDownload=0 ;Bootproject.InvalidateByRename=1 ;Bootproject.InvalidateBySetting=1 ;Bootproject.InvalidateNever=0 ;PersistentForce=0 ;RetainType.Applications=InSRAM ;RetainType.Applications=OnPowerfail ;RetainType.Applications=None ;Exception.Hardware.GlobalStop=1 Application.1=MyTestAppNoRetain The last line appeared after download and boot project creation. Maybe... Should set RetainType.Applications=None? I wonder about all these settings, but... Will write separately about it. I hope this helps a little...
Last updated: 2024-11-21

Post by mubeta on Strange problem with the ‘MC_SetPosition’ function ^{CODESYS Forge talk (Post)}
No errors in any condition. The function terminate correctly with the 'done' bit. Now I leave the machine and I don't know when I will be there again. The assumption you made I had considered. The operational limits of the axis are all fit for purpose, and this function should operate virtually without even noticing the motion limits. In fact in practice with the axis at low speed the function corrects any numerical value of the position in the range 0 ... 360° without any problem whatsoever in a single PLC scan cycle.
Last updated: 2025-01-10

Post by jampid on Codesys Codebase Library Update ^{CODESYS Forge talk (Post)}
Bonjour DIEGORAMONM, très recemment,je pense avoir résolu un problème similaire en allant dans le Placeholder (Espace réservé) du Gestionnaire de bibliothèque. Dans cette nouvelle fenêtre, je sélectionne la bibliothèque qui pose problème, et dans la colonne du milieu je clic pour définir une bibliothèque de version inférieure. à la compilation, je suis passé de 484 erreurs à 0. :) J'espère que ce sera également le cas pour toi. Bon développement JM
Last updated: 2025-04-04

Post by jvfred on Reading a negative number ^{CODESYS Forge talk (Post)}
I have a Codesys-based Eurotherm E+PLC400 connected to Codesys HMI SL for visualization. I am also bringing in several Pressure Indicators via the Ethernet. Everything works; however, the Pressure indicators sometimes read a negative value. When they do, the displayed value on the screen reads "65532." While I know what it represents, the customer freaks out and wants it to read "0" or a negative number. The value comes in as an integer, just in case that matters. Does anyone have any ideas?
Last updated: 2025-05-22

Post by hickan on safety cpu cannot go online ^{CODESYS Forge talk (Post)}
Hi! I am using abb ac500 in automation builder v2.7 I have a problem with a new project. In the normal mode I have no problems, but in safety mode i cannot go online. I get 'Communication Error (#0) Logout Performed' message. I have tried changing the adress (level 1) in communication parameters. I tried 0.0.0.0.0 and 0.1.0.0.0 and 1.1.0.0.0 but it did no difference. What do you think could be causing this? Thanks!
Last updated: 2025-07-08

Post by nha451 on EIP Scanner not receiving data from adapter ^{CODESYS Forge talk (Post)}
Hello, I have an EtherNet IP adapter (GoPxL) running with a virtual PLC. I have successfully connected the adapter with green icons next to it. On WireShark I can see the data coming from GoPxL but on CODESYS it shows up as all 0. My firewall is turned off and I have enabled the device to always update variables. I tested my set up with Profinet and I can receive the data. Please let me know if you have any suggestions!
Last updated: 2025-09-12

Post by astutoski on MCP23017: inputs OK, but outputs won’t switch (CODESYS on Raspberry Pi) ^{CODESYS Forge talk (Post)}
Hi everyone, I’ve connected and configured an MCP23017 over I²C on a Raspberry Pi using the available CODESYS/RPi library. Input reading works fine (I can reliably read a digital input). However, I can’t get any output pin to change state. Example: when I try to drive PB0, the watch shows MCP23017.Out_B.0 = TRUE (1), but there is no actual output on the pin (no voltage change). Anyone solved this?
Last updated: 2025-09-17

Post by wiresplus on Cannot get INT_TO_TIME working ^{CODESYS Forge talk (Post)}
Hello, I have a simple TON timer. It is watching prime loss for a pump. The operator can set the delay via the HMI, it is an integer (seconds) As the TON uses milliseconds, we then multiply the entry by 1000 to get seconds. Seems simple, but... VAR PrimeTimer : TON; primetime : INT; END_VAR PrimeTimer(in:=State>0 AND FlowRate<MinimumFlow,pt:=INT_TO_TIME(primetime *1000)); For an entered 15 seconds (VAR primetime:=15;) the timer reads 49d17h2m26s760ms !!!! What am I doing wrong?
Last updated: 2024-01-26

Post by ojz0r on INT_TO_WORD function not working ^{CODESYS Forge talk (Post)}
That calculation will not work the way you expect it to. If PumpFillSpeed is limitied to 0-50 then the only whole number would be 50/50 = 1 everything else is 0.0-0.9999... and since you are using word and integer only 50 would work since there is no representation for mantissa in integer values. Declare a temporary real variable and do the calculation and then do a REAL_TO_WORD in the DRV2Speed assignment.
Last updated: 2024-01-26

Post by rpostwvu on Shared Memory Access Issues ^{CODESYS Forge talk (Post)}
I got the shared memory example. I'm pretty sure I'm successfully created a memory space, CreateResult returns 18. szName:='CodesysDataShare'; hShm := SysSharedMemoryCreate(szName, 0, ADR(uxiSize), ADR(CreateResult)); I'm trying to access this memory with a C# application, but I get "Unable to Find Specified File". I suspect that Codesys and/or Visual Studio code alters the name I choose? Being in Windows, I cant find a way to see the mapped memory list. ~~~ using (var mmfRead = MemoryMappedFile.OpenExisting("CodesysDataShare",MemoryMappedFileRights.ReadWrite)) ~~~
Last updated: 2024-01-29

Post by thomasrohnerch on Color Change for Symbols not working ^{CODESYS Forge talk (Post)}
I have some Symbols from the Visualization Toolbox on my Target Visu on the Computer. I tried many Symbols, mainly Arrows. I'm able to control the visibility with condition e.g. "GVL.actual_testvalues.speed <= 0" But I can't do "Toggle color" with boolean GVL.b_toggle_color. Neither "TRUE" nor "FALSE" does change anything. Is this a known issue? I'm using CODESYS V3.5 SP19 Patch 5 + (64-bit). See attached file with more Version-Info. I'm currently using Style 6, Gradient axial 2, 3.5.12.0. I had the same issue with Default 3.5.16.0.
Last updated: 2024-02-08

Post by andrax on Prüfen ob Datei existiert wenn nicht neu erstellen ^{CODESYS Forge talk (Post)}
Hi, ich ich möchte prüfen ob eine Datei existiert. Wenn diese nicht existiert, soll eine erstellt werden und dort hinein geschrieben werden. Die Datei wird im Programmlauf mehrfach geöffnet und Daten hinein geschrieben. Ich will hier die Funktion File.MODE.MAPPENDPLUS benutzen, das funktioniert aber nicht. fopen.xDone bleibt false. Hier der Code: fopen.sFileName:=sFileName; fopen.eFileMode:=File.MODE.MAPPENDPLUS; // Neu erstellen und anhängen fopen.xExclusive:=TRUE; fopen( xExecute:=TRUE); IF fopen.xDone THEN hFile:=fopen.hFile; sStringToWrite:=''; writeIndex:=0; SchrittDatenlog:=60; END_IF Wo liegt mein Fehler?
Last updated: 2024-02-11

Sort by relevance or date