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Post by mondinmr on Why SysPipeWindows is not implemented in RTE? ^{CODESYS Forge} ^talk ^(Post)
This library would be very useful for IPC communications. Using a UDP socket on localhost is unpredictable, as with slightly loaded machines it does not even guarantee packet delivery locally. Using TCP creates a lot of overhead. Message named pipes would be an excellent solution for Windows RTE. On Linux, since the release of the extension package, there is no issue, as it is sufficient to develop a component. However, although now 90% of our clients understand that Linux runtimes are better in every way compared to Windows RTE, especially from the security aspect (Not in kernel space) and the issues with Windows updates, 10% stubbornly insist (sometimes for trivial commercial reasons) on using Windows. Managing IPC with circular buffers in shared memory is quite ugly, or rather really ugly and unaesthetic. In the manuals, I saw the SysPipeWindows libraries, so I decided to test them, but unfortunately, I noticed that they are not implemented for RTE devices. Technically, I could try to open them as regular files, but SysFileOpen returns 16#27 or 16#39 depending on how I set the name (direction of the slashes). Here is the code to create shared memory and named pipes. Shared memory work great, named pipes no! #ifdef Q_OS_WIN32 SECURITY_ATTRIBUTES sa; SECURITY_DESCRIPTOR sd; InitializeSecurityDescriptor(&sd, SECURITY_DESCRIPTOR_REVISION); SetSecurityDescriptorDacl(&sd, TRUE, NULL, FALSE); sa.nLength = sizeof(SECURITY_ATTRIBUTES); sa.lpSecurityDescriptor = &sd; sa.bInheritHandle = FALSE; const wchar_t* name = L"Global\\ShmTest"; HANDLE hMapFile = CreateFileMapping( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, sizeof(SharedData), name); if (hMapFile == NULL) { qCritical("Error creating shared memory"); return 1; } data = static_cast<SharedData*>(MapViewOfFile(hMapFile, FILE_MAP_ALL_ACCESS, 0, 0, sizeof(SharedData))); if (data == NULL) { qCritical("Error mapping shared memory"); return 1; } HANDLE hPipe = CreateNamedPipe( TEXT("\\\\.\\pipe\\MyPipe"), PIPE_ACCESS_DUPLEX, PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT, PIPE_UNLIMITED_INSTANCES, 1024 * 1024, 1024 * 1024, NMPWAIT_USE_DEFAULT_WAIT, &sa); if (hPipe == INVALID_HANDLE_VALUE) { qCritical("Error creating named pipe"); return -1; } if (!ConnectNamedPipe(hPipe, NULL)) { qCritical("Error connecting to named pipe"); return -1; } checkPipe(hPipe); #endif
Last updated: 2024-02-02

Post by ryandmg on Web Client (HMI) Disconnects from Webvisu (Weidmuller u-OS) ^{CODESYS Forge} ^talk ^(Post)
Hey Everyone, I'm having a bit of a struggle finding settings that will reliably maintain a connection between the webvisu and a touchscreen client. Every so often the HMI disconnects and will perpetually display the red spinning arrow with the "Error Happened, Will resume automatically" text. Power cycling the HMI to force a reconnect will re-establish comms. It seems to happen during periods of inactivity if that's a clue. From what I've gathered so far this seems to have something to do with the webvisu update rate, buffer size as well as the visu task scan rate. We first tried the default settings as follows: Webvisu Update Rate: 200 ms Webvisu Buffer Size: 50,000 Visu Task Scan Rate: 100 ms Priority 31 Other Tasks for Reference: Main Task Scan Rate: 100 ms Priority 1 Alarm Manager Scan Rate: 50 ms Priority 31 Ethercat Task: 4 ms Priority 1 This would disconnect some what regularly. We then made the following changes to try and stabilize: Webvisu Update Rate: 150 ms Webvisu Buffer Size: 75,000 Visu Task Scan Rate: 75 ms Kept other tasks the same. This seems to disconnect even more frequently. Also for reference the network is very small and only consists of the PLC, a small switch and the HMI. We're also not controlling frames from outside the visu program itself. The frame changes are all done natively. Any suggestions to get this to stop disconnecting? Oh and whatever the issue is the log does not record it. Figured I would ask here before opening a ticket. Thanks in advance for your help!
Last updated: 2023-09-06

Post by mubeta on Some 'pathetic' errors in SoftMotion program ^{CODESYS Forge} ^talk ^(Post)
Thank you for your interest. Your answers are in line with what I knew, so at least it comforts me that I did not misinterpret the situation. However, I don't have an exact match as, for this project over the past few days I have: 1) I have gone back to leaving the various FBs of the motion always called, all of them, and in the state machine I use a boolean to activate the various useful Execute. (But in the future I want to go back and try the programming technique with which I wanted to develop this project); 2) For the occasional error: SMC_FB_WASNT_CALLED_DURING_MOTION perhaps it was due to the fact that I had set the Ethercat bus synchronism only at the CAN master level, but not at the level of individual drives. I have now also activated it for the individual drives and it does indeed seem to have been resolved, but having also adopted the programming technique mentioned in point 1), I cannot say whether this was the solution to the problem, or instead the previous point. Is there an error ‘regulator or start not set’ in the device log before the error ‘motion generating FB wasn't called for at least one cycle’? I can't answer that right now. By now the machine is running and I am no longer there, at this one. Also, I seem to remember that the 'fbeFBerror' drive structure (5-element array), does not cycle, BUT ONCE THE 5 EVENTS AFTER SWITCHING ON, IT DOES NOT UPDATE ANYMORE (but that's another issue), so diagnostics were not easy.
Last updated: 2024-07-24

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 mondinmr on Frustration-Fueled Feedback on Project File Management and Git Integration ^{CODESYS Forge} ^talk ^(Post)
Good day, I’m writing this message out of frustration regarding the current way project files are saved as encrypted XML and single-file format in CODESYS. I find this approach to be quite tedious for several reasons: Limited Access to Structured Text: Not being able to access Structured Text (ST) externally makes it impossible to work with alternative editors like VSCode. Tools like VSCode are incredibly responsive and feature advanced systems such as GitHub Copilot, which would be a real game-changer when working with ST IEC. While CODESYS works well for small code snippets or debugging, when the codebase grows, switching to VSCode to boost productivity becomes essential, and copy-pasting between environments is a cumbersome workaround. Poor Integration with Git: This file format also makes it very difficult to integrate effectively with Git. I have tested the internal demo, but for advanced merges, it is unusable. Without properly formatted plain text, it’s impossible to leverage the vast ecosystem of external tools around Git that allow smooth merges in heterogeneous teams. File Corruption on Network Drives: I often work from multiple locations with shared network drives. When the development environment saves a file and something goes wrong midway (which can occasionally happen when using VPNs and network drives), the entire project becomes irrecoverable. There’s no way to cancel the save process, and the development environment freezes. This has happened to me at least four times over the past two weeks, and one of those incidents cost me an entire day of work. All of this is particularly disappointing because I truly believe that the libraries, runtime, and overall work done by CODESYS are exceptional. I find it fantastic that there is a platform allowing development of PLCs and control systems using OOP, which is a huge advantage in modern control engineering. I apologize for the rant, but this issue has been extremely frustrating. Best regards.
Last updated: 2024-10-15

Post by mgabryel on Problems with CAN 2.0 comunication on Wago PLC (Codesys 3.5) ^{CODESYS Forge} ^talk ^(Post)
Hello, I am trying to program CAN Bus comunication on WAGO PLC (more precisely on WAGO Touch Monitor model TP600). I am using for this purpose library "WagoAppCanLayer2" from Wago company. My IDE for programming this device is CODESYS V3.5 SP19 Patch 2 + (64-bit). My program is written in Structured text using function blocks from previously mentioned library. Here is code of this program: 1) Variables declarations: PROGRAM PLC_PRG VAR oOpenInterface : WagoAppCanLayer2.FbCanL2Open :=( udiBaudrate := 125000 ); xInterfaceIsOpen : BOOL; sInterfaceInfo : STRING; oReceive : WagoAppCanLayer2.FbCanRx29BitFrame :=( xBufferMode := FALSE, wCanId := 16#181 ); xRecv : BOOL; sReceiveInfo : STRING; oSend : WagoAppCanLayer2.FbCanTx29BitFrame :=( dwCanId := 16#100, //was 16#201 xRtrFrame := FALSE ); xSend : BOOL; sSendInfo : STRING; oCanDiag : WagoAppCanLayer2.FbCanErrorInfo; xRst : BOOL; aSendData : ARRAY [1..8] OF BYTE; bSendLen : BYTE; TON_0 : TON; TON_1 : TON; END_VAR 2) Program body: oOpenInterface( xEnable := NOT xInterfaceIsOpen, I_Port := IoConfig_Globals.WAGO_CAN_LAYER2_DEVICE ); sInterfaceInfo := oOpenInterface.oStatus.GetDescription(); xInterfaceIsOpen S= oOpenInterface.xValid AND NOT oOpenInterface.xError; oReceive( xEnable := xInterfaceIsOpen, I_Port := IoConfig_Globals.WAGO_CAN_LAYER2_DEVICE, xRxTrigger := xRecv ); sReceiveInfo := oReceive.oStatus.GetDescription(); IF NOT xRecv THEN IF oReceive.bRxNBytes > 0 THEN oReceive.aRxBuffer[1]; oReceive.aRxBuffer[2]; oReceive.aRxBuffer[3]; oReceive.aRxBuffer[4]; oReceive.aRxBuffer[5]; oReceive.aRxBuffer[6]; oReceive.aRxBuffer[7]; oReceive.aRxBuffer[8]; END_IF xRecv := TRUE; END_IF aSendData[1] := 224; aSendData[2] := 13; aSendData[3] := 14; aSendData[4] := 15; aSendData[5] := 222; aSendData[6] := 13; aSendData[7] := 14; aSendData[8] := 15; bSendLen := 8; TON_0(IN:= NOT TON_1.Q, PT:= T#2S , Q=>xSend, ET=> ); TON_1(IN:= TON_0.Q, PT:= T#2S , Q=>, ET=> ); oSend( xEnable := xInterfaceIsOpen, I_Port := IoConfig_Globals.WAGO_CAN_LAYER2_DEVICE, aTxBuffer := aSendData, bTxNBytes := bSendLen, xTxTrigger := xSend ); sSendInfo := oSend.oStatus.GetDescription(); oCanDiag( xEnable := TRUE, I_Port := IoConfig_Globals.WAGO_CAN_LAYER2_DEVICE, xTriggerResetCounter := xRst, xValid=> , xError=> , oStatus=> , wBusState=> , wBusDiag=> , uiRxOverflowsL2=> , uiTxOverflowsL2=> , uiRxOverflows=> , uiMsgTimeouts=> , uiBusOffs=> , uiBusWarnings=> ); Program first opens comunication on CAN 2 device and then periodically try send one CAN data frame. After starting program CAN 2 interface is properly open. The xSend variable is toggling with period 2s. When program sends data an "Tx overflow" error appears. When I am watching CAN_H line on DSub 9 socket i am not able to see proper CAN frames - see screenshot attached to this message. Could somebody help me determine what is wrong with this program. Best regards
Last updated: 2024-08-02

Post by george32 on Readable IO names ^{CODESYS Forge} ^talk ^(Post)
Hello Folks, I have a quite basic understanding of how PLC programming works. However I keep getting stuck on 1 problem I could not get my head around. The problem is as follow: I have a PLC with 60 IO (20 inputs, 40 outputs). Each IO is defined as a function block. Furthermore I have an external IO card connected trough a CanBus connection. This IO card has 4 analog input channels (USINT), 4 digital inputs (Bool) and 4, digital outputs (Bool) Because I have 2 different components which both has data have I made 4 arrays to store the data off every component in one variable. PLC_Input: Array [1..20] of BOOL; PLC_Output: Array [1..40] of BOOL IOCard_Input: Array [1..8] of BOOL IOCard_Output: Array [1..4] of BOOL Because the control and reading of the different in and outputs is done by a TCP connection I want to use some kind of enumeration or struct to give each index a name so that my main would be a little bit more readable instead of all the magic numbers. Also this would make my program more dynamic for the furter in case I need to changes some in the IO nummers. For example: pump is placed on the fysical terminal strip number place 54, which is the 3th output of the IO card in the program: if I am sending a message with value 54 I would like to control IOCard_Output[3]. If there is a solution or methode to get this done, I can eventually do the following in my main program: IOCard_Output[Pump]. I have tried the following: IOCard_Output[Pump - 51] with an enumration but this keeps raising an error I hope some of you could help me further with this problem. In gross lines: I want to couple all the different IO to a more readable name and this readable name should control the right Array index Thanks in advance, George
Last updated: 2024-09-26

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Last updated: 2024-10-26

Post by adamrobotic on llcallback() iec exception caught cmpid=0x00000002, eventid=0x00010008 ^{CODESYS Forge} ^talk ^(Post)
Hi All, Recently I have been experiencing a issue in CodeSys SP16 Patch 3, with a exception which comes up after I have made several online changes. callcallback() iec exception caught cmpid=0x00000002, eventid=0x00010008, after I experience this fault then I receive a error message for any subsequent online change "online change failed, no task gap within 10000ms". To recover either the controller needs a orgin reset, which will allow online edits thereafter until falling back into the loop. I am using a TURCK TX707 product which is controlling robot trajectory, We have hard coded the coordinate data rather than using persistence variables so hence the need to do online changes consistently. I have read on the forum other people have experienced similar issue with the online task gap, but I have no task which have same priority and also monitored the CPU usage and have not seen it go above 13%. Anyones help would be much appreciated, thankyou.
Last updated: 2023-08-18

Post by vipul on Multicast udp ^{CODESYS Forge} ^talk ^(Post)
Hi, Good afternoon can anybody help me with UDP Multicast code. I am not able to send or recieve data when code is dumped on linux device. Below is my code. Declaration: PROGRAM udp_multicast VAR oneTimeFlag :UINT :=0; state: INT:=0; driver: UDP.UDPDriver; //port : UDP.Port;//moved to GVL src_ipAddr_ud: UDINT; src_ipAddr_st:STRING := '192.168.127.155';//'192.168.1.155';//ipms ip address dst_ipAddr_ud:UDINT; group_ipAddr_st:STRING := '239.1.5.10'; //group_ipAddr_ud:UDINT; result: SysTypes.RTS_IEC_RESULT; //result of recieve function. bind: UDINT; //result of binding. resultCreate:SysTypes.RTS_IEC_RESULT;//result of port creation. timer:BLINK; temFlag :INT:= 0; post:INT :=0; checksumFunc:checksumXor; localStringBuf:STRING[500]; chksum:BYTE; dataBuffer:POINTER TO BYTE; checksumString:ARRAY[0..5] OF BYTE; recvSize:__XINT; errorCode:UDINT; joinGroupErrorCode:UDINT; END_VAR ************8 Implementation: IF oneTimeFlag <> 1 THEN oneTimeFlag:=1; resultCreate := driver.CreatePort(ADR(GVL.port)); src_ipAddr_ud := UDP.IPSTRING_TO_UDINT(sIPAddress:= src_ipAddr_st); GVL.group_ipAddr_ud := UDP.IPSTRING_TO_UDINT(sIpAddress:= group_ipAddr_st); GVL.port.IPAddress := src_ipAddr_ud; GVl.port.ReceivePort:= GVL.src_port;//port on which messages are expected. GVl.port.SendPort := GVL.dest_port; GVl.port.OperatingSystem := 0; //0- any system GVL.port.Socket :=3; //3- socket type is multicast bind := GVL.port.Bind(udiIPAddress:=src_ipAddr_ud,); GVl.port.JoinGroup(udiGroupAddress:= GVL.group_ipAddr_ud,udiInterfaceAddress:= src_ipAddr_ud,eLogCode=>joinGroupErrorCode); END_IF timer(ENABLE:=TRUE,TIMELOW:=T#100MS,TIMEHIGH:=T#100MS); IF timer.OUT = TRUE THEN GVL.port.Send(udiIPTo:=GVL.group_ipAddr_ud,GVL.dest_port,pbyData:=ADR(GVL.writeData),diDataSize:=SIZEOF(GVL.writeData)); ELSE SysMemSet(ADR(GVL.readData[0]),0,SIZEOF(GVL.readData)); result := GVl.port.Receive(ADR(GVL.readData),diDataSize:=SIZEOF(GVL.readData),udiIPFrom=>dst_ipAddr_ud,diRecvSize=>recvSize,eLogCode=>errorCode); SysMemMove(ADR(GVL.readDataBuf[0]),ADR(GVL.readData[0]),SIZEOF(GVL.readData)); END_IF post:=LEN(GVL.readDataBuf);
Last updated: 2024-01-14

Post by thewizard8 on Raspberry PI4 Serial Port ^{CODESYS Forge} ^talk ^(Post)
Hi Dear All, I'm using my raspberry PI4 as a CoDeSyS PLC (Build from scratch with custom electronics). I was able to implement all fieldbuses with the exception of Modbus Serial. I'm using the internal Port (GPIO) and I configured it in /etc/Codesyscontrol_user.cfg the following away: [SysCom] Linux.Devicefile.1=/dev/ttyUSB0 Linux.Devicefile.2=/dev/ttyS0 I'm using COM2 on Master configuration. I'm using a interface board from TTL/RS485 (bidirectional board), and it's works perfectly with other devices but not in CoDeSyS. I'm able to send data with python script and read it on my pc using putty, but when I use a modbus slave simulator to interface with codesys I always get red icons on master and slave. (Please find image attached). I'm pretty shure that this might be a bad parameter on my CoDeSyS runtime configurstion file. Can someone help me? I'm stuck and this is for my master degree certification.
Last updated: 2024-03-18

Post by umdee on Error when monitoring LAD programs ^{CODESYS Forge} ^talk ^(Post)
System Information from the computer being used: OS Name Microsoft Windows 11 Pro Version 10.0.22631 Build 22631 Other OS Description Not Available OS Manufacturer Microsoft Corporation System Manufacturer Dell Inc. System Model Latitude 5500 System Type x64-based PC System SKU 08B9 Processor Intel(R) Core(TM) i7-8665U CPU @ 1.90GHz, 2112 Mhz, 4 Core(s), 8 Logical Processor(s) BIOS Version/Date Dell Inc. 1.3.11, 6/11/2019 SMBIOS Version 3.2 Embedded Controller Version 255.255 BIOS Mode UEFI BaseBoard Manufacturer Dell Inc. BaseBoard Product 0M14W7 BaseBoard Version A00 Platform Role Mobile Secure Boot State On PCR7 Configuration Elevation Required to View Windows Directory C:\WINDOWS System Directory C:\WINDOWS\system32 Boot Device \Device\HarddiskVolume1 Locale United States Hardware Abstraction Layer Version = "10.0.22621.2506" User Name CARDASSIA-IX\Engineer Time Zone Eastern Daylight Time Installed Physical Memory (RAM) 16.0 GB Total Physical Memory 15.8 GB Available Physical Memory 4.67 GB Total Virtual Memory 18.5 GB Available Virtual Memory 2.52 GB Page File Space 2.63 GB Page File C:\pagefile.sys Kernel DMA Protection Off Virtualization-based security Not enabled Windows Defender Application Control policy Enforced Windows Defender Application Control user mode policy Off Device Encryption Support Elevation Required to View Hyper-V - VM Monitor Mode Extensions Yes Hyper-V - Second Level Address Translation Extensions Yes Hyper-V - Virtualization Enabled in Firmware Yes Hyper-V - Data Execution Protection Yes
Last updated: 2024-03-19

Post by leafy on Use third party actuator with IO-Link Master (IFM) ^{CODESYS Forge} ^talk ^(Post)
Hey there! I am currently doing a little automation project for uni. I am trying to integrate a control-valve-system (Buerkert AirLINE Field) in my IO-Link environment. With IFM sensors, I used their pre-built function blocks, but with this third-party device, i need to write my own function block. Thankfully, IFM provides a generic sensor-fb so I can write my own FB with "extends" and "super". So far, so good. I found the IODD and some other documentation and I thought I get how it works, but somehow can't really get it to work at all. From my understanding, i need to write data into the PDO-Array. But i get confused with the indices and subindices of IO-Link. I'll append the IODD and some screenshots of my project. There is an AOI for LogicXDesigner, but I can't use that in Codesys. I hope someone has integrated a IOL-device in Codesys before and can help me with this. Cheers leafy
Last updated: 2024-04-16

Post by mogam on Internal error:System.NullReferenceException: The object reference was not set to an object instance. ^{CODESYS Forge} ^talk ^(Post)
Hi everyone, I have a my App that reads values from a shared memory than 2 variables x,y were calculated. here as you can see in my code: PROGRAM PLC_PRG VAR szName : STRING := '/SM'; ( Name of the shared memory.) uxiSize : __UXINT := 646 * 2 * SIZEOF(REAL); ( Size of the shared memory. ) hShm : RTS_IEC_HANDLE; ( Handle to the shared memory ) pStart : POINTER TO REAL; ( Pointer to the first element in the memory ) pData : POINTER TO REAL; ( Pointer, which is incremented until the last sign in the memory is reached. ) shared_data :ARRAY[0..645, 0..1] OF REAL; velocity : ARRAY[0..2] OF REAL; ( Velocity array ) position : ARRAY[0..2] OF REAL; ( Position array ) angleDepth : ARRAY[0..645, 0..1] OF REAL; ( Angle and depth array ) xEndOfMemory : BOOL; x : ARRAY[0..645] OF REAL := 1.0; y : ARRAY[0..645] OF REAL := 1.0; (* Result of actions at the memory. *) OpenResult : RTS_IEC_RESULT; ReadResult : RTS_IEC_RESULT; PointerResult : RTS_IEC_RESULT; DeleteResult : RTS_IEC_RESULT; CloseResult : RTS_IEC_RESULT; i : INT; END_VAR ( Open the shared memory ) hShm := SysSharedMemoryOpen2(szName, 0, ADR(uxiSize), ADR(OpenResult)); IF hShm <> RTS_INVALID_HANDLE THEN (* Read the entire shared memory table *) SysSharedMemoryRead(hShm:= hShm, ulOffset:= 0, pbyData:= ADR(shared_data), ulSize:= uxiSize, pResult:= ADR(ReadResult)); (* Fetch the pointer from the shared memory. The pointer is pointing to the first element address *) //pStart := SysSharedMemoryGetPointer(hShm, ADR(PointerResult)); (* Close the shared memory *) //CloseResult := SysSharedMemoryClose(hShm := hShm); (* Read velocity and position data from the shared memory *) FOR i := 0 TO 2 DO velocity[i] := shared_data[i, 0]; position[i] := shared_data[i, 1]; END_FOR; (* Read angle and depth data from the shared memory *) FOR i := 0 TO 645 DO angleDepth[i, 0] := shared_data[(i + 6), 0]; angleDepth[i, 1] := shared_data[(i + 6), 1]; END_FOR; FOR i := 0 TO 645 DO x[i] := angleDepth[i, 1]*COS(angleDepth[i, 0]); y[i] := angleDepth[i, 1]*SIN(angleDepth[i, 0]); END_FOR; END_IF For these values an XY-CHART needs to be done and when i create a visualisation and set the x data and y data when i try to compile, i recieve this error: ------ Übersetzungslauf gestartet: Applikation: Device.Read_App ------- Code typisieren ... [FEHLER] Internal error:System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt. bei _3S.CoDeSys.LanguageModelManager.LDateType.Accept(ITypeVisitor typvis) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String , IVariable[]& , ISignature[]& ) bei ..(String , IVariable[]& , ISignature[]& , IScope& ) bei ..visit(_IVariableExpression , AccessFlag ) bei ..(_IUserdefType ) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String , IVariable[]& , ISignature[]& ) bei ..(String , IVariable[]& , ISignature[]& , IScope& ) bei ..visit(_IVariableExpression , AccessFlag ) bei ..(_IUserdefType ) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String , IVariable[]& , ISignature[]& ) bei ..(String , IVariable[]& , ISignature[]& , IScope& ) bei ..visit(_IVariableExpression , AccessFlag ) bei ..(_IUserdefType ) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String , IVariable[]& , ISignature[]& ) bei ..(String , IVariable[]& , ISignature[]& , IScope& ) bei ..visit(_IVariableExpression , AccessFlag ) bei ..(_IUserdefType ) bei ..(_IArrayType ) bei ..(_IPointerType ) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String , IVariable[]& , ISignature[]& ) bei ..(String , IVariable[]& , ISignature[]& , IScope& ) bei ..visit(_IVariableExpression , AccessFlag ) bei ..(_IUserdefType ) bei ..(_IPointerType ) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String , IVariable[]& , ISignature[]& ) bei ..(String , IVariable[]& , ISignature[]& , IScope& ) bei ..visit(_IVariableExpression , AccessFlag ) bei ..(_IUserdefType ) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String , IVariable[]& , ISignature[]& ) bei ..(String , IVariable[]& , ISignature[]& , IScope& ) bei ..visit(_IVariableExpression , AccessFlag ) bei ..(_IUserdefType ) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String , IVariable[]& , ISignature[]& ) bei ..(String , IVariable[]& , ISignature[]& , IScope& ) bei ..visit(_IVariableExpression , AccessFlag ) bei ..(_IUserdefType ) bei ..(_IPointerType ) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String , IVariable[]& , ISignature[]& ) bei ..(String , IVariable[]& , ISignature[]& , IScope& ) bei ..visit(_IVariableExpression , AccessFlag ) bei ..(_IUserdefType ) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..(_ISignature , _IPreCompileContext ) bei ..( ) bei ..(String ) bei ..(String , IVariable[]& , ISignature[]& ) bei ..(String , IVariable[]& , ISignature[]& , IScope& ) bei ..visit(_IVariableExpression , AccessFlag ) bei ..(_IUserdefType ) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei _3S.CoDeSys.Compiler35140.Compiler.(_ICompileContext , _IPreCompileContext , _ICompileContext , IProgressCallback ) bei _3S.CoDeSys.Compiler35140.Compiler.(_ICompileContext , Boolean , Boolean , _IPreCompileContext , _IPreCompileContext , _ICompileContext , Boolean , Boolean& , IProgressCallback ) bei _3S.CoDeSys.Compiler35140.Compiler.(Guid , Boolean , Boolean , Boolean , Boolean& , _ICompileContext& , _ICompileContext& , IProgressCallback , Boolean , Boolean ) Kompilierung abgeschlossen -- 1 Fehler, 0 Warnungen Übersetzung abgeschlossen -- 1 Fehler, 0 Warnungen : Kein Download möglich!
Last updated: 2024-05-24

Post by paro on Modbus Client Request Not Processed ^{CODESYS Forge} ^talk ^(Post)
Hi, Problem in your code is that you are not calling the ClientFb cyclic. Please look at the Example from CODESYS: https://forge.codesys.com/prj/codesys-example/modbus/home/Home/ Your code works if the client fb is called cyclic! IF NOT initDone THEN initDone := TRUE; // configure clientTcp clientTcp(aIPaddr:=Ethernet.IPAddress, uiPort:=502); // configure clientSerial clientSerial(iPort:=SysCom.SYS_COMPORT2, dwBaudRate:=SysCom.SYS_BR_115200, byDataBits:=8, eParity:=SysCom.SYS_EVENPARITY, eStopBits:=SysCom.SYS_ONESTOPBIT, eRtuAscii:=ModbusFB.RtuAscii.RTU); // configure clientRequestReadCoils_1 clientRequestReadCoils_1(rClient:=clientTcp, uiUnitId:=42, udiTimeout:=TO_UDINT(T#10MS)); // configure clientRequestWriteSingleRegister clientRequestWriteSingleRegister(rClient:=clientTcp, uiUnitId:=43, udiTimeout:=TO_UDINT(T#10MS)); // configure clientRequestReadCoils_2 clientRequestReadCoils_2(rClient:=clientTcp, uiUnitId:=44, udiTimeout:=TO_UDINT(T#10MS)); // configure clientRequestReadInputRegisters clientRequestReadInputRegisters(rClient:=clientTcp, uiUnitId:=44, udiTimeout:=TO_UDINT(T#10MS)); END_IF // call the client FB's clientTcp(); clientSerial(); // call client request FB's clientRequestReadCoils_1(rClient:=clientTcp, xExecute:=TRUE, uiStartItem:=2, uiQuantity:=3, pData:=ADR(aDataCoils_1[0])); // for more details see Example_TCP, especially ClientRequest control (xExecute, xDone, xError). IF clientRequestReadCoils_1.xDone THEN // get data from aDataCoils_1 ... END_IF clientRequestWriteSingleRegister(rClient:=clientTcp, xExecute:=TRUE, uiItem:=3, uiValue:=123); clientRequestReadCoils_2(rClient:=clientTcp, xExecute:=TRUE, uiStartItem:=2, uiQuantity:=3, pData:=ADR(aDataCoils_2[0])); clientRequestReadInputRegisters(rClient:=clientTcp, xExecute:=TRUE, uiStartItem:=16, uiQuantity:=3, pData:=ADR(aDataInputRegisters[0]));
Last updated: 2024-05-29

Post by ahuckphin on Issues with Modbus Slave with Raspberry Pi ^{CODESYS Forge} ^talk ^(Post)
I have a DFRobot RS485 temperature & humidity sensor (SEN0438) connected to my Raspberry Pi via a USB to RS485 adapter. I am able to connect and read the sensor data when running a python code locally. However in Codesys, I encounter this error "A bus error has occurred." and "There was no response in time". Could this be because of Modbus Server Channel and Modbus Server Init configuration on my part? Admittedly I am new to Codesys. To get to this stage, I: 1. added some lines to CODESYSControl_User.cfg 2. added "Modbus_COM" in Codesys and set "Serial Port Configuration" under "General" 3. added "Modbus_Master_COM_Port" in Codesys and checked transmission mode is set to "RTU" 4. added "Modbus_Slave_COM_Port" in Codesys and checked server address is set to 1 (also set 1 in my sensor) 5. added 1 channel and 1 init for "Modbus_Slave_COM_Port" under "Modbus Server Channel" and "Modbus Server Init"
Last updated: 2024-07-10

Post by trusty-squire on CNC - How to manipulate SMC_GeoInfo objects ^{CODESYS Forge} ^talk ^(Post)
I have an application using CNC GCode interpolation, but I need to modify the GCode provided to the PLC based on certain parameters. I am currently attempting to modify the SMC_GeoInfo objects in the SMC_OutQueue using the code below. Note that all the other code is pretty standard and works fine, but when I add the below it errors. PROGRAM TEST VAR fbReadCncFile : SMC_ReadNCFile2; fbCncInterpreter : SMC_NCInterpreter; arrCncInterpreter : ARRAY[1..99] OF SMC_GeoInfo; pGeoInfo: POINTER TO SMC_GeoInfo; giGeoInfo: SMC_GeoInfo; // ... END_VAR // ... Some code here in order to read CNC file using SMC_ReadNCFile2 and provide to SMC_NCInterpreter pGeoInfo := SMC_GetObj(poq:=ADR(fbCncInterpreter.poqDataOut), n:=1); IF pGeoInfo <> 0 THEN giGeoInfo := pGeoInfo^; // Do some manipulation here, then update the queue at the same position MC_SetObj(poq:=ADR(fbCncInterpreter.poqDataOut) , n:=0 , pgi:=ADR(giGeoInfo) ); END_IF It throws an error when I get to the line giGeoInfo := pGeoInfo^; Error: EXCEPTION [AccessViolation] occured: App=[Sim.Device.Application], Task=[PathTask] How do I use SMC_GetObj and access the data? It creates a pointer with the value as shown in the photo, but all the dereferenced values say dereference of invalid pointer.
Last updated: 2024-07-26

Post by ruobian on Analog Input Delay Timer ^{CODESYS Forge} ^talk ^(Post)
Hello there, I am new here and in programming. I need help with the basics. I am trying to do what I mentioned in the title. I have an analog input. So I have a real or integer data type value. I want to delay it. TON and TOF only work with bool. I think there is a function block that has two inputs, 1 for real or int and 1 for bool. And if bool is true, it will give the output as real or int. I don't know but I need something like this. Actually, it is not exactly like that. In other words, it will not show the real value at the input at the output after a certain period of time. I want it to show the real value from 2 seconds ago continuously. The purpose of doing this is to compare the real value I received with the value from 2 seconds ago and find out whether it went up or down. I am using only FBD. Please help me with this. Thanks in advance.
Last updated: 2024-08-20

Post by bruceae on Ethernet/IP Scan ^{CODESYS Forge} ^talk ^(Post)
Hello, I have a robot configured as a Generic Ethernet Module under Ethernet/IP Scanner. I can not see the change of state of the outputs coming from the robot on the codesys side in real-time. (The robot has it's own internal program that would changes the values of remote outputs 0-3 off and on). Also when I send data down to the inputs of the robot it doesn't transfer over as expected. As an example I'll send to the robot's input bit 0 a value of 1. It doesn't see that value change. However, when I write that input bit 0 back to a value of 0, the robot changes state and shows a value of 1. And if I change the state of a different bit, the other bits update properly, except for the bit that I changed. Any advice would be greatly appreciated, and if anything else is needed let me know.
Last updated: 2024-09-10

Post by codesysbeginner on Eaton XC303 - USB Mounting / Trend manager ^{CODESYS Forge} ^talk ^(Post)
Hi, For a project I am using the trendmanager functionality, I changed the placeholder filepath to which the SQL database is saved to: home/disk_usb, $trend$. Which only works as long as the usb was mounted to the PLC at boot. However, I'd like to be able to switch the USB's out if they break or for data analysis. However when a new (or the same) USB is plugged back in the shortcut doens't exist on the device anymore. Also in the device directory under root/mnt/ a new folder appears SDB1 in addition to SDA1 to which the Trendmanager was originally writing. The SDA1 folder is empty/unreachable while the new SDB1 folder has the contents of the USB drive. I tried disabling the trendmanger while unplugging the USB's however this doesn't work. My question, how do I make it so that when I plug a USB drive back in, it will be mounted to SDA1 instead of SDB1? Kind Regards
Last updated: 2024-10-09

Post by andrax on CodeSys Raspberry pi I2C driver not found ^{CODESYS Forge} ^talk ^(Post)
Hi, Communication with the ADS1115 is actually simple. 1. write config 2. write address pointer 3. read conversation register The ADS1115 works like a multiplexer. This means that you do this individually for each channel that you want to read. e.g: Channel 1: write config > write address pointer > read conversation register Channel 2: write config > write address pointer > read conversation register Channel 3: write config > write address pointer > read conversation register Channel 4: write config > write address pointer > read conversation register then you start again from the beginning You can also omit individual channels or read only one. It doesn't matter. I have written the driver so that I can also use it on the TCA9548. The driver is from Stefan Dreyer. In your case, the driver works and communication with the ADS1115 is running. As you can see, the cfgWrong:=FALSE If you could not write or read data, cfgWrong:=TRUE; This means that either something is wrong with your ADS1115 or you have connected something incorrectly. Question: what voltage do you want to measure?
Last updated: 2024-11-08

Post by cfam on Codesys Control for PLCnext (PLC - AXL F 2152) ^{CODESYS Forge} ^talk ^(Post)
Good day All I would like to share some information on this site for the Codesys team as well for the future members using Codesys Control for PLCnext if it is allowed. I hope that i Post it in the correct spot. Subject: Codesys, Codesys Control for PLCnext Objective: Using the following Phoenix components to built a PLC Rack and run it on Codesys: Hardware and Software used 1. 2404267, AXC F 2152 - Controller 2. 1088136, AXL F BP SE6 - Module carrier 3. 1088129, AXL SE DO16/1 - Digital module 4. 1337224, AXL SE PD16 GND - Potential distributors 5. 1088127, AXL SE DI16/1 - Digital module 6. 1337223, AXL SE PD16 24V - Potential distributors 7. 1088123, AXL SE AO4 I 4-20 - Analog module 8. 1088134, AXL SE SC-A - Cover 9. Codesys v3.5 SP19 Patch 4 10. Codesys Control for PLCnext V4.10.0.0 Process: Firstly I built the Rack according to the Phoenix Project+ Software tool. Where I rebuilt it onto my test bench . I used the PLCnext Engineer IDE from Phoenix and all Communications where up and running and my PLC program executed successfully. THEN I tried the same PLC Layout with Codesys and Codesys Control for PLCnext. It was not successful and gave me the "Error: Local Bus not Running". I searched the web for answers but was unsuccessful in finding a solution. So I tried to change my configuration and found that the following Modules COULD NOT be recognized by Codesys Control. The result was that the Local Bus Failed to run. 1337224, AXL SE PD16 GND - Potential distributors 1337223, AXL SE PD16 24V - Potential distributors Example 1, Resulted in "Error: Local Bus Not Running": Module carrier slot 1: 1088129, AXL SE DO16/1 - Digital module Module carrier slot 2: 1337224, AXL SE PD16 GND - Potential distributors Module carrier slot 3: 1088127, AXL SE DI16/1 - Digital module Module carrier slot 4: 1337223, AXL SE PD16 24V - Potential distributors Module carrier slot 5: 1088123, AXL SE AO4 I 4-20 - Analog module Module carrier slot 6: 1088134, AXL SE SC-A - Cover Example 2, Result "Successful": Module carrier slot 1: 1088129, AXL SE DO16/1 - Digital module Module carrier slot 2: 1088127, AXL SE DI16/1 - Digital module Module carrier slot 3: 1088123, AXL SE AO4 I 4-20 - Analog module Module carrier slot 4: 1088134, AXL SE SC-A - Cover Module carrier slot 5: 1088134, AXL SE SC-A - Cover Module carrier slot 6: 1088134, AXL SE SC-A - Cover Result: Codesys or Codesys Control for PLCnext, has a PROBLEM to identify the following Modules. 1. AXL SE PD16 24V - Potential distributors 2. AXL SE PD16 GND - Potential distributors Hope that this information could be useful in future. Best regards Jaco Pretorius
Last updated: 2023-12-06

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