Post by trusty-squire on Strange problem with the ‘MC_SetPosition’ function ^{CODESYS Forge talk (Post)}
Here, it seems to me that we are getting completely off track with the observed problem. If questions clarifying the details of the installation are problematic, it's best to include those details in the original question then... I had already written this elsewhere. The program before being brought into machines was exhaustively tested in SW emulation and the problem did not occur. Testing the full program in emulation is entirely different from creating a simplified program to isolate the function causing problems in the real world. I would recommend trying it to isolate the issue. The drive and motor have been working fine for about 10 years. In replacing the machine control system, I opted for CoDeSys where before there was something else. But this is not the subject of the problem A simple "yes" is the correct answer to my question here... Anyways, you seem to be a very knowledgeable expert, good luck on your problem!
Last updated: 2025-01-18

Post by rene-h on ClientFilter used the same Client ID 2 times - Bug? ^{CODESYS Forge talk (Post)}
Hello, like the topic name says, i have a problem on one Visu which i cannot reproduce on another Visu. We filter buttons with input locks and visible items with [CURRENTCLIENTID] on different WebVisu's with different ID's, and one time the itfClient used the same Client ID for 2 Clients, so the Visualization on the first ID was wrong, because that one which connected after did not have the same permissions like the first, so the first one was blocked. We read the Clients with the VisuClientIteration project: //count active clients gCli.iNumberOfClients:=gCli.iNumberOfClients+1; // if client is active write data to global struct IF gCli.iNumberOfClients > 0 THEN gCli.astClientInfo[gCli.iNumberOfClients-1].iClientID:=itfClient.ClientId ; gCli.astClientInfo[gCli.iNumberOfClients-1].stCurrentVisu:=itfClient.CurrentVisuName; gCli.astClientInfo[gCli.iNumberOfClients-1].wsUserName:=itfClient.UserName; gCli.astClientInfo[gCli.iNumberOfClients-1].sIpAddress:=itfClient.GetIPv4Address(); gCli.astClientInfo[gCli.iNumberOfClients-1].ClientType:=itfClient.ClientType; END_IF Runtime from the device: 3.5.19.20 Codesys we use: 3.5.20.10 I added a screenshot where the same ID exists 2 times. Thanks for your answers.
Last updated: 2025-05-14

Post by westcountryewe on Displaying a Target Web Page on WebVisu ^{CODESYS Forge talk (Post)}
I have a main PLC with my CODESYS project on, including Web Visu. I also have a second device used for pump monitoring, all of this is displayed on a seperate HMI. I am looking at displaying the pump monitoring HMI on WebVisu so that I can solely use 1 HMI rather than having two. I can project the pump monitoring HMI into Chrome, and log in and it works fine. When I'm using the Web Browser element in Web Visu, enter my URL (device IP) it shows me the web page, but doesn't show me all of it. It uses parts of JavaScript for the login authenticiation and various other widgets. Similarly, I cannot get Youtube or Google to display on WebVisu either (possibily because of the same reason). Does anybody have any tips on how I can display the likes of Youtube or Google onto WebVisu so I can view it on my 7inch HMI (I suspect that if I can get Youtube or Google to work, then I will also be able to get my pump montitoring web page to work too).
Last updated: 2025-07-09

Post by kevin123 on auto-answer dialog using system.prompt_answers ^{CODESYS Forge talk (Post)}
I am trying to do "update device" in a project which was saved in a different version of CODESYS using ScriptEngine, a dialog with 'Yes' and 'No' button popped up showing that "Do you want to upgrade the storage format for this project? -if you click 'Yes', storage format will be upgraded... -if you click 'No', storage format will not be changed..." I have to click the 'Yes' button automatically by scriptEngine. I know from others topics here in forum, that some dialogs can be auto-answered using system.prompt_answers. And I also get the messagekey of this dialog: Key: "<< No Key>>" Message: "Do you want to upgrade the storage format for this project? - If you click 'Yes',... i have tried using the system.prompt_answers command below, but the dialog was not auto-answered. system.prompt_answers["<<No Key>>"] = PromptResult.Yes Does someone know how to auto-answer the dialog using system.prompt_answers command with messagekey"<< No key>>"? or any suggestions to solve this issue, Thanks!
Last updated: 2024-01-26

Post by kevin123 on auto-answer dialog using system.prompt_answers ^{CODESYS Forge talk (Post)}
I am trying to do "update device" in a project which was saved in a different version of CODESYS using ScriptEngine, a dialog with 'Yes' and 'No' button popped up showing that "Do you want to upgrade the storage format for this project? -if you click 'Yes', storage format will be upgraded... -if you click 'No', storage format will not be changed..." I have to click the 'Yes' button automatically by scriptEngine. I know from others topics here in forum, that some dialogs can be auto-answered using system.prompt_answers. And I also get the messagekey of this dialog: Key: "<< No Key>>" Message: "Do you want to upgrade the storage format for this project? - If you click 'Yes',... i have tried using the system.prompt_answers command below, but the dialog was not auto-answered. system.prompt_answers["<<No Key>>"] = PromptResult.Yes Does someone know how to auto-answer the dialog using system.prompt_answers command with messagekey"<< No key>>"? or any suggestions to solve this issue, Thanks!
Last updated: 2024-01-26

Post by kevin123 on (no subject) ^{CODESYS Forge talk (Post)}
I am trying to do "update device" in a project which was saved in a different version of CODESYS using ScriptEngine, a dialog with 'Yes' and 'No' button popped up showing that "Do you want to upgrade the storage format for this project? -if you click 'Yes', storage format will be upgraded... -if you click 'No', storage format will not be changed..." I have to click the 'Yes' button automatically by scriptEngine. I know from others topics here in forum, that some dialogs can be auto-answered using system.prompt_answers. And I also get the messagekey of this dialog: Key: "<< No Key>>" Message: "Do you want to upgrade the storage format for this project? - If you click 'Yes',... i have tried using the system.prompt_answers command below, but the dialog was not auto-answered. system.prompt_answers["<<No Key>>"] = PromptResult.Yes Does someone know how to auto-answer the dialog using system.prompt_answers command with messagekey"<< No key>>"? or any suggestions to solve this issue, Thanks!
Last updated: 2024-01-26

Post by tomast on Codesys and Siemens SINAMICS 20 modbus RTU "Response CRC Fail" ^{CODESYS Forge talk (Post)}
Hi everyone, I'm currently working on a project involving the control of 5 VFDs via Modbus RTU, this time using the WAGO 750-8212 CPU. So far, I've managed to make progress, but I've encountered an issue. While I can successfully read and write to all the registers I need, I consistently encounter a "Response CRC Fail" error when attempting to write the value 1151 to the STW register at address 40100. I'm able to set the frequency via register 40101 and adjust all other parameters using different registers. Setting STW to 1150 results in the drive ready boolean from the ZSW-bit being received instantly. However, the moment I attempt to send 1151 to register 40100, I immediately receive the "Response CRC Fail" error for all channels. I've also attempted to use combined control, employing Modbus for frequency control and starting from a digital input. Everything seems to function properly until I send the start command to the VFD. Interestingly, I consistently encounter the same error the moment I send the start command, regardless of whether I use register 40006 (high) or 40100 (1151). Could someone please assist me in resolving this issue?
Last updated: 2024-03-21

Post by rabaggett on CODESYS control for Raspberry Pi 64 SL errors ^{CODESYS Forge talk (Post)}
Hi, I am trying to create a project using a raspberry pi, I have added the modules for the Pi and MCP3008. I have encountered som errors that I don't know how to track down. 1. The GPIOs give preprocessor errors, but I read that this does not prevent compiling. This seems to be true. I can build the empty project with no errors. 2. After adding a SPI master and MCP3008, the preprocessor errors double, but seem similar and the project again builds with no errors. 3. I add a DUT and GVL, with a function, and I get the following errors. They remain even if I delete these things. ------ Build started: Application: Device.Application ------- Typify code... [ERROR] crr: C0032: Cannot convert type 'Unknown type: 'ADR(GVL_Io_17160064_c083_41f8_9e53_208be7537753_HPS_7.Io_17160064_c083_41f8_9e53_208be7537753_HPS_7)'' to type 'POINTER TO IoConfigParameter' [ERROR] crr: C0077: Unknown type: 'GVL_Io_17160064_c083_41f8_9e53_208be7537753_HPS_7.Io_17160064_c083_41f8_9e53_208be7537753_HPS_7' [ERROR] crr: C0046: Identifier 'GVL_Io_17160064_c083_41f8_9e53_208be7537753_HPS_7' not defined Compile complete -- 3 errors, 0 warnings I attach the project. What am I doing wrong? Thanks!
Last updated: 2024-05-02

Post by kaotic2499 on Upgraded Raspberry 2b to Raspberry 5, Trends Broken? ^{CODESYS Forge talk (Post)}
Hello! Raspberry pi 2b just is getting a bit slow so decided to go for a Raspberry 5. Project is now upgraded to suit Pi 64 SL... so, now although everything runs perfectly... for some reason my trends will not save! its driving me nuts... ^Tried merging tasks with main program & trends ^tried re-prioritizing tasks (shifting 1 - 31 etc) ^Recreated the Trend Recording manager from scratch ^Tried swapping persisitant vars to GVL Retains then non-retains... (Project attached is as per before trial&error) Raspberry Pi 2b still runs "perfectly" though its very chuggy (Still saves the trends, note this is of an pretty much identical project minus the device compatibility) Does anyone have any advice to offer? project attached.... I feel it could be outside of Codesys itself causing the issues, but cant see/find anything on the internet to assist (or anyone else with the same problem as me...) Can attach project in another format (non archive) any assistance is much appreciated!
Last updated: 2025-10-19

Post by dmb-fan on Hilscher cards CoDeSys Control RTE ^{CODESYS Forge talk (Post)}
You have to know this (and the crap help site don't tell you): - Changes in CODESYSControl_User.cfg, not in CODESYSControl.cfg (crash of PLC/Win possible) - Redundancy is important for Profibus, also if you don't use it because the libarys depending on it - The no. after the device is the slot numer for PLC device config [ComponentManager] Component.1=CmpDrvSchedulerAMP Component.2=CmpCodeMeter Component.3=CmpHilscherCIFX Component.4=CmpNetXCanDlDrv ; this is not in help, but thats makes the internal driver load Component.5=CmpRedundancy Component.6=CmpRedundancyConnectionIP [CmpHilscherCIFX] TraceLevel=0xFFFFFFFF InterruptMode=0 DMAMode=1 ;DynamicFirmware=1 BootloaderFile=$Firmware$/HilscherCIFX/Firmware/NETX100-BSL.bin FirmwareFilePath=$Firmware$/HilscherCIFX/Firmware ;non-dynamic declaration of FW-files: ; 100 !!! CIFIX50 cards but files called 100 !!! Device.0.BootloaderFilePath=$Firmware$\HilscherCIFX\Firmware\NETX100-BSL.bin Device.0.Channel.0.FirmwareFile=$Firmware$\HilscherCIFX\Firmware\cifxcom.nxf Device.1.BootloaderFilePath=$Firmware$\HilscherCIFX\Firmware\NETX100-BSL.bin Device.1.Channel.0.FirmwareFile=$Firmware$\HilscherCIFX\Firmware\cifxdpm.nxf ;;;; And good luck, you will need it ! ;;;;
Last updated: 2026-10-23

Post by fajean on Issue with library updates ^{CODESYS Forge talk (Post)}
We make heavy use of internally developed libraries, which are often nested on multiple levels. I routinely work simultaneously on several libraries along with a project that use them. I make changes to a library and immediately perform a download (online or otherwise) in the project. For the longest time, we had zero issue with this. But starting a good while back, with 3.5 SP19 I think, CODESYS started not noticing library updates in other instances most of the time. When the update is missed, the project sees no need to update the code, and any download ignores the new code. A "Clean all" does not solve the issue. But if I close and then re-open the project, then the new version is noticed and the download works. The other solution is saving the library to the registry multiple times (say, 20-30 times, less if lucky), and then at some point the project notices the changed library. I am now on SP21, and it is still not fixed. This is driving me mad, any tasks probably takes me double the time or more due to this problem. My colleague has the same problem on a separate computer. Is this a known issue? Is there a setting somewhere that changes how updates are checked? Thanks for any help!
Last updated: 2026-02-13

Post by mubeta on Some 'pathetic' errors in SoftMotion program ^{CODESYS Forge talk (Post)}
Yes, this is the error the sometimes show up. What make me crazy is the fact that it happens randomly and not each times. I know very well where the problem is, in wich one program row it's located. For each actions of the state machine I have all events recorded with log on text file. it is not problematic for me to find the application point of the fault, but I need to understand why occasionally and for no apparent reason, switching the state machine and thus changing the motion FB, sends the axis into failure (but only occasionally). For example, one case that is often problematic is the execution of the Axis Halt instruction. When, after a MoveAbosulte instruction this returns the event as 'done' and indeed the axis is in standstill, the state machine first sets the move instruction to FALSE, and the next cycle sets the Halt request to TRUE. Some of the time everything works out fine. Occasionally, however, in this exchange, the axis goes into fault, also losing the OPERATIONAL state. Meanwhile, I would like to understand why the motion FB instances must still be called even after the Execute is set to FALSE, especially in view of the fact that the next instruction is programmed to abort the previous one, with BufferMode set to 'Aborting'. All these unnecessary FB calls are an unnecessary overhead on the CPU anyway. Is there any precise rule about when to cease calling the various instances? (It should precisely be the 'done' status that says this one has finished its work).
Last updated: 2024-07-18

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 brouwyka on JSONByteArrayWriter string result incorrect order ^{CODESYS Forge talk (Post)}
Additional note: When doing all additions to a JSON array one after another without additions outside the array inbetween (and no more additions to the array after an item outside the array has been added) - which is not a viable solution for us as we might add items to any of the arrays at any time, but we tested regardless to be thorough - we get the following result: { "id": "machine_1", "readings": [ { "temp_mid": 153.8 }, { "temp_mid": 98.3 } ], "status": "RUNNING" } This mostly matches our expected outcome, aside from the JSONByteArrayWriter not adding indenting before closing square brackets ("]") at all. That doesn't matter for JSON of course, as it's not sensitive to indenting, but it's still a bug regardless. Also, it adds an unnecessary newline between items in the array (at least when having an array of objects, we haven't tested with arrays of primitives). I also want to reiterate that this is not a viable workaround for the issue for us - we have to be able to add to any array at any time, which should be possible according to the docs, and we are 100% sure indexes are correctly being managed and built up by the JSONBuilder and our wrapper (to track the index of each array & the latest item added to each exactly to make use of the documented possibility to add anything anywhere in the JSON at any time as long as you keep track of the returned indexes) around it.
Last updated: 2026-06-10

Post by r-niedermayer on C0564 Warning Message ^{CODESYS Forge talk (Post)}
Please see or Online Help on how to initialize variable before using them: https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_pragma_attribute_global_init_slot.html Regarding the Attribute global_init_slot: You can use this pragma to influence the order in which signatures are processed during global initialization. It can only be applied to signatures. By default, the initialization sequence for variables from global variable lists is undefined! However, if, for example, variables from one list depend on variables from another list, it is necessary to initialize one before the other. (Aee OLH and Syntax) The placeholder <slot> must be replaced by an integer value that defines the position in the initialization sequence.</slot> The default value is 50000. A lower value causes an earlier initialization! If several signatures have the same value for the 'global_init_slot' attribute, the order of their initialization remains undefined! Cautious application should therefore be considered! Example: The project contains f.e. two global variable lists GVL_1 and GVL_2. The global variable "A" is part of the global variable list GVL_1: {attribute 'global_init_slot' := '300'} VAR_GLOBAL A : INT:=1000; END_VAR The initialization values of the variables "B" and "C" of GVL_2 are dependent on the variable "A". {attribute 'global_init_slot' := '350'} VAR_GLOBAL B : INT:=A+1; C : INT:=A-1; END_VAR So if you set the 'global_init_slot' attribute of the global variable list GVL_1 to 300, i.e. to the lowest initialization value in the example, then it is ensured that the expression "A+1" is well-defined at the time of initialization of "B".
Last updated: 2024-01-30

Post by umdee on Error when monitoring LAD programs ^{CODESYS Forge talk (Post)}
I get the following error when monitoring my program (see attached screenshots): "Unhandled exception has occured in your application. If you click Continue, the application will ignore this error and attempt to continue. If you click Quit, the application will close immediately. Value cannot be null. Parameter name: source. And the details say: See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box. ** Exception Text ** System.ArgumentNullException: Value cannot be null. Parameter name: source at System.Linq.Enumerable.Any[TSource] (IEnumerable1 source, Func2 predicate) at _3S.CoDeSys.NWLEditor.NWLTextCell.OnPaintCellLayer(PaintEventArgs e) at _3S.CoDeSys.Controls.Controls.GfxEdControl.PaintCellCellLayer(PaintEventArgs e, GfxCell cell) at _3S.CoDeSys.Controls.Controls.GfxEdControl.PaintCellCellLayer(PaintEventArgs e, GfxCell cell) at _3S.CoDeSys.Controls.Controls.GfxEdControl.PaintCellCellLayer(PaintEventArgs e, GfxCell cell) at _3S.CoDeSys.Controls.Controls.GfxEdControl.OnPaint(PaintEventArgs e) at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer) at System.Windows.Forms.Control.WmPaint(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.UserControl.WndProc(Message& m) at _3S.CoDeSys.Controls.Controls.GfxEdControl.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) ** Loaded Assemblies ** (3000 lines of assemblies) ** JIT Debugging ** To enable just-in-time (JIT) debugging, the .config file for this application or computer (machine.config) must have the jitDebugging value set in the system.windows.forms section. The application must also be compiled with debugging enabled. For example: <configuration> <system.windows.forms jitdebugging="true"> </system.windows.forms></configuration> When JIT debugging is enabled, any unhandled exception will be sent to the JIT debugger registered on the computer rather than be handled by this dialog box The windows show red X's where the networks should be. Any advice on how to fix this? Additional Information PLC used: Wago 750-8212, Firmware FW26 Startup profile: CODESYS V3.5 SP19 Patch 5 OS version: Microsoft Windows NT 10.0.22631.0 .NET version: 4.0.30319.42000 Full Version info attached as .txt
Last updated: 2024-03-17

Post by wold on CodeMeter Network Server: Keep runtime dongle local-only and export only a second CmStick ^{CODESYS Forge talk (Post)}
Hello, I am running a CODESYS Control Runtime on a Raspberry Pi. Two CmSticks are connected to the same system: CmStick A - Runtime license - MultiCore license - KNX license CmStick B - Engineering / Developer licenses My goal is: The runtime on the Raspberry Pi shall use CmStick A locally. Licenses from CmStick A shall NOT be provided by the CodeMeter Network Server. Only licenses from CmStick B shall be available to remote network clients. During troubleshooting I observed that the CodeMeter Network Server collects licenses from both CmSticks. The KNX license appears to be local-only, but the runtime and multicore licenses of the same dongle are still visible through the server. I would like to know if a supported configuration exists for the following scenario: One CmStick remains strictly local to the runtime. A second CmStick on the same machine is exported through the CodeMeter Network Server. Questions: Is it possible to exclude a specific CmStick from being exported by the CodeMeter Network Server? Can this be configured via License Access Permissions (ACL), WebAdmin, or another mechanism? Can export rules be applied per CmStick, per Firm Code, or per Product Code? If supported, could you provide a configuration example or a reference to the relevant documentation? The reason for asking is that after removing a separately installed CodeMeter server component and returning to a local-only setup, the runtime licensing behaviour became stable again. Therefore I am looking for the officially supported way to keep the runtime dongle local while still providing engineering licenses from a second dongle over the network. Thank you.
Last updated: 2026-08-02

Post by sunfloweeerrry on Edgelogix-rpi-1000-cm4102032 SPI port connection to PiFace I/O Driver in CodeSys. ^{CODESYS Forge talk (Post)}
Hello, I hv a problem. Couldn't solve this for 2 days now. So I'm quite new at CodeSys and I have to use the spi port x30 on the edgelogix rpi 1000. So what I have to do is just 'add device' at the SPI where I hv to pick the 'SPI master' after that I hv to change the parameters according to the edgelogix I did found in the spidev.h but nothing got updated so I 'add device' again where I pick the PiFace I/O Driver and I put my variables at the I/O Mapping, which i put the input startbit at the in part and led at the out part. I want to make the led blink according to my structured text code but somehow the hardware didn't connected with the CodeSys spi port. Nothing happens. Any idea what I have to do?
Last updated: 2023-08-18

Post by kbazzett on "Sequent Microsystems" industrial automation hat raspberry pi ^{CODESYS Forge talk (Post)}
Here is a complete list of the Sequent Microsystems Pi hats that work in Codesys. https://github.com/SequentMicrosystems/SM_CODESYS/tree/main/ "For easy install download the .package file and open it on your computer, Codesys installer will know what to do with it." <- This. The Multi I/O Hat fit my needs because of the Analog I/O 4-20ma and RTD. I used a Raspberry Pi 5 and 64b install. The example project is also worth the download. With the sample project open, right click on the Raspberry Pi device and update to whatever you are using (SL, MC, 64b). Enable I2C on the PI. You can jumper the hats Analog Outputs to Inputs and see it function on the Web Visualization. Very Cool! I spent quite a bit of time trying to find this solution so hopefully this update helps others. Here is the video link on how to setup a Raspberry PI as a Codesys PLC https://youtu.be/RPoPscbo3Kc?si=Th4-n-mQ6g5fdHj8
Last updated: 2024-12-05

Post by bertcom on STRING conversions to DWORD ^{CODESYS Forge talk (Post)}
Good afternoon. I want to communicate with a Domino Industrial Printer using its Codenet protocol. The printer wants a series of Hexadecimal characters with no spaces or '00' characters. Because of that i chose the option to make the prefix and subfix for my code in a string. I have variable data in another string. With a complete program of a lot of CONCAT functions i eventually get the format of code that the printer accepts ( tested it with the hercules tool). Hercules String : 1B4F513030311B7532626C61636B04 The problem is : Codesys adds automatically 'code' to the code to show it is a string. Codesys string : '1B4F513030311B7532626C61636B04' The printer does not understand this. My idea is to convert the string datatype to an LWORD. I have no idea how to do this. I random types in STRING_TO_DWORD, as return i get 0. That didn't worked. Also on internet the explenations around string converting in codesys are very limited. If there in anyone who can explain me how to do it, i would appreciate it a lot ! Thank you!
Last updated: 2025-01-29

Post by peterkcontrols on Codesys Network driver install for Codesys Control RTE x64 ^{CODESYS Forge talk (Post)}
Hello I am trying to download my project onto my Codesys Control RTE x64 soft PLC. and I have had an issue when downloading. [FATAL ERROR] Unresolved reference: 'SYSETHERNETADAPTEROPEN' [FATAL ERROR] Unresolved reference: 'SYSETHERNETADAPTERCLOSE' [FATAL ERROR] Unresolved reference: 'GETNUMBEROFADAPTERS' [FATAL ERROR] Unresolved reference: 'GETADAPTERINFO' [FATAL ERROR] Unresolved reference: 'SYSETHERNETIPFRAMERECEIVE' [FATAL ERROR] Unresolved reference: 'SYSETHERNETETHFRAMESEND' [FATAL ERROR] Unresolved reference: 'SYSETHERNETETHFRAMERECEIVE' [FATAL ERROR] Unresolved reference: 'SYSETHERNETIPFRAMESEND' [FATAL ERROR] Unresolved reference: 'SYSETHERNETFRAMERELEASE' Looking on the forum I have found other people had to install the network driver, which I have done following this youtube video by codesysGroup: https://youtu.be/10oj4wABaKc?si=664l83JXUGQSDlAe I have added the network driver, please see attached image. I have checked my BIOS to make sure my secure boot status is disabled, see attached image. when I go to component manager, the drop down menu doesnt have the new network adapter, see attached image. I have not yet purchased or installed any licenses is that what I am missing? What other reason is there that I can't download to the runtime. Thanks
Last updated: 2025-03-18

Post by vahasa on CAN TPDO / RPDO ^{CODESYS Forge talk (Post)}
Hi I'm automation engineering student and I'm not yet quite familiar with CAN-bus. What I am trying to achieve, to send two byte message via CAN from Epec display to Scott Drive inverter. I'm using code template made with Epec Multitool in Codesys 3.5 Problem i'm facing is that drive responds with same COB-ID. In multitool, you can create TPDO/RPDO. And depending on that, display either sends or only receives. This is problem, because for parameter polling from drive, you need to send two byte request to 0x399 and drive responds with eight bytes. If request is longer, drive don't respond. 0x399 is currently setted as RPDO, so display doesn't send anything on startup and I made program that sends messages to 0x399 bytes 0 and 1 and bytes 3-7 are shown in display. If setted as TPDO, display send all eight bytes and therefor drive cannot respond. But, I think because they are defined as RPDO, display won't send message, although monitoring with Codesys, values are changed. Question is, how should COB-ID be configured in Codesys, so it wouldn't automatically start to send message but would send when needed?
Last updated: 2023-12-19

Post by gatto on Backtick identifiers ^{CODESYS Forge talk (Post)}
Hello, I’m in Codesys 3.5.20.40 and I try to declare the variable ´var1´ but I get an error. here : https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_rules.html i read : Backtick identifiers By using backticks, characters can also be used in identifiers that are not normally permitted in identifiers, such as special characters. The acute accent character is used for backticks: ´ (Unicode: U+02CA) The use of backticks is recommended in order to be able to use the same identifiers in CODESYS as in other programming languages or documents, such as circuit diagrams. Any character may be used between two backticks, except line breaks and other backticks. Keywords are also allowed as identifiers between backticks. Examples: ´Variable+9´ ´INT´ The backticks are part of each identifier and therefore var1 and ´var1´ are two different identifiers. Example PROGRAM PLC_PRG VAR var1 : INT; ´var1´: INT; END_VAR var1 := var1 + 1; ´var1´ := 12; Are there any limitations or is something missing in my development environment?
Last updated: 2025-10-28

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