Post by alexgooi on How to protect library project? ^{CODESYS Forge talk (Post)}
Hi aniket-b, If you save the library as a compiled library you are not able to see the source code. When the end user tries to view inside the object, CODESYS will give a notification that the source code is missing, see attachment. In short if you don't send the source code, it will not show.
Last updated: 2024-01-25

Post by namwind on Wago 8210 ^{CODESYS Forge talk (Post)}
Hi guys, I ran into problem with the controller is not saving the project into the internal memory. I was able to download the project to the controller, but as soon as I try to recycle the power it power back up with no project. I have not ran into this problem before. Please help me out thank you.
Last updated: 2024-03-02

Post by vincentd on Datasource OPC UA Client error ID:7012 ^{CODESYS Forge talk (Post)}
I have not used this client / server OPC UA combination since. We were only making some kind of proof of concept. I did understand that there could be some kind of bug. I do not know if the supposed bug has been resoved since. Perhaps you could try what piautomation is suggesting
Last updated: 2024-04-05

Post by koehler on Codesys 3.5.12 Module not Found ^{CODESYS Forge talk (Post)}
Hi there, I am getting troubles with a project. In the Hardware configuration I got some Lenze drives 9400. One of them got as status " Module not Found". Connection are good. ID Node of the Canopen network is also good. I don't find any reason for this status, nor any options to check.
Last updated: 2024-04-17

Post by davecfc on Codesys installation package fails because not signed ^{CODESYS Forge talk (Post)}
Also had this problem when working on legacy project. My packege was CODESYS Code Generator ARM 4.0.3.0.package. To manage this I used PackageManagerCLI.exe. This tool does not validate certificates appearently. My command: "C:\Program Files\CODESYS 3.5.17.30\CODESYS\Common\PackageManagerCLI.exe" --profile="CODESYS V3.5 SP17 Patch 3" --install=""C:\Users\sample_user\AppData\Local\Temp\APInstaller\5wx1k02a.r2t\CODESYS Code Generator ARM 4.0.3.0.package""
Last updated: 2024-04-18

Post by mgengler on Recipe Manager - Not Creating Recipe Files ^{CODESYS Forge talk (Post)}
Thanks for info... However, I changed the directory to: C:\ProgramData\CODESYS\CODESYSControlWinV3x64\58719825\PlcLogic\Recipes It still displays the content of this folder OK, however still will not write or read files. Is this the PLCLogic area you speak of? I also tried adding this path the the CodesysControl.cfg file. But still can't get it to work. Any additional direction would be appreciated!
Last updated: 2024-05-20

Post by mg0815 on ERROR: Calling the program "AlarmStorage_Prg" is not allowed from multiple tasks ^{CODESYS Forge talk (Post)}
I use Codesys 3.5.21.1 too I have absolutelly the same fault. Do you know the solution? I get the same massages accept the last one (up to your's from 2025-08-03 04:38) The last messages do not appear. (your's later than 2025-08-03 04:40) Reagards Mg
Last updated: 2025-11-04

Post by willebro on "Distributed clocks are not synchronized, Rea time problem on hardware" ? ^{CODESYS Forge talk (Post)}
https://forge.codesys.com/forge/talk/Engineering/thread/632c29cb93/#8d94 The above comment is the best, but if you just want to see it work you can try disabling the distributed clock. It's not the right thing to do but it should resolve that error.
Last updated: 2025-12-16

Post by petra on Gateway not configured properly when read_online_value ^{CODESYS Forge talk (Post)}
Here is what I use to read online the parameter value. proj = projects.primary app = proj.active_application plc = proj.find("Device", True)[0] onlineapp = online.create_online_application(app) onlineapp.login(OnlineChangeOption.Try, True) dev1 = proj.find("DEV1", True)[0] for conn in dev1.connectors: > parms = conn.host_parameters > if len(parms) > 0: > p = parms.by_id(1074855985) > p.read_online_value(2000) ---> error: Gateway not configured properly
Last updated: 2026-06-12

Post by petra on Gateway not configured properly when read_online_value ^{CODESYS Forge talk (Post)}
Here is what I use to read online the parameter value. proj = projects.primary app = proj.active_application plc = proj.find("Device", True)[0] onlineapp = online.create_online_application(app) onlineapp.login(OnlineChangeOption.Try, True) dev1 = proj.find("DEV1", True)[0] for conn in dev1.connectors: > parms = conn.host_parameters > if len(parms) > 0: > p = parms.by_id(1074855985) > p.read_online_value(2000) ---> error: Gateway not configured properly Does anyone know about this?
Last updated: 2026-06-12

Post by aniket-b on Configure encapsulation Layer while using Ethetnet/ip product ^{CODESYS Forge talk (Post)}
I found this issue raised multiple times but I do not find a solution for this. I am getting Configure encapsulation Layer on EIP product while using with CODESYS V3.5 SP22. This product works well with Rockwell, Omron, Mithshibishi PLCs. The same device, same eds file, same EIP configuration does not work with CODESYS. Can someone please guide me here?
Last updated: 2026-07-30

Post by reinier-geers on Compare applications in one project ^{CODESYS Forge talk (Post)}
Ive copied slave 3 to slave 1. Runs without a problem. Then i copied 1 to 3. It hangs/freeze immediatly. not even a screen. Only thing that is diverend is the network variable. What is the problem with version 20.5 / 21.0 ? Not even my dealer knows whats the problem
Last updated: 2026-03-19

Post by brouwyka on JSONByteArrayWriter string result incorrect order ^{CODESYS Forge talk (Post)}
Hi @TimvH, As discussed in our email contact, your example does not actually test/reproduce the bug I am describing: Adding to the JSON builder on later cycles works fine. Your example works because you do the following: 1. You finish the first cycle (xFirst) with adding an object to the array with 2 fields; 2. When the next cycle is triggered (xAdd), you immediately start with adding another object to that array. This works fine as the last thing you did before #2 was the addition of the array and an object to it. To reproduce the bug you should be doing the following instead, as I showed with the code I shared with my first post: 1. Create the array - save the index that is returned; 2. Add an item, either a primitive or an object, to the array; 3. Add an item outside the array (anything: a primitive, a new array, a nested object, etc); 4. Add another item to the array using the index you saved at #1. You will now see, as I shared in my initial post, that the second item is placed completely outside the root JSON object. This also happens to anything else you try to add after step #4: everything after this point will be added outside the root JSON object: the JSON is completely broken. Important to note is that this not only happens with arrays, but also with nested JSON objects. Once you add something outside of a nested JSON object, you can no longer add anything to that nested JSON object, as that causes the exact same bug. This also applies to arrays of objects, so if in your test you had tried adding a new key-value pair to the first nested object in your array after you created the second nested object, you would also run into this bug. It seems that the JSONByteArrayWriter (I haven't tested the other writers in the JSON Utilities SL library, so I don't know if they suffer from the same problem) simply does not handle any JSON fields that add brackets (so arrays with "[" & "]" and nested objects with "{" & "}") well, and closes them prematurely instead of checking if any later JSONElements in the JSONData's array belong to any of these bracketed fields. After reviewing the objects & functions of the JSON Utilities SL library, my guess is that either the JSONByteArrayWriter linearly goes through the array of JSONElements in the JSONData and only checks the diParentIndex of each JSONElement in direct ascending order, OR if it does use the JSONElement.GetChildren(); method, that this method is either broken and doesn't give all children correctly to the writer. Neither explains why everything completely breaks, and you cannot even add to the root JSON object anymore, however, so there is probably more than just that going wrong in the writer. To me, after a full week of testing and attempting workarounds, this seems like a bug in the library that needs to be fixed by Codesys, as I cannot see anything wrong in the JSONData constructed by the JSONBuilder - this seems purely a problem in the writer.
Last updated: 2026-06-15

Post by paulpotat on cm4 runtime problem ^{CODESYS Forge talk (Post)}
Hello, We are having the same kind of problem again with the last CM4 we received : ooops... this runtime was built for RASPBERRYPI. Hardware version or firmware version not supported! (-18, 0x00000BB8, 0xFFFFFFFB) Hardware Version $ cat /proc/cpuinfo processor : 0 model name : ARMv7 Processor rev 3 (v7l) BogoMIPS : 126.00 Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd08 CPU revision : 3 processor : 1 model name : ARMv7 Processor rev 3 (v7l) BogoMIPS : 126.00 Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd08 CPU revision : 3 processor : 2 model name : ARMv7 Processor rev 3 (v7l) BogoMIPS : 126.00 Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd08 CPU revision : 3 processor : 3 model name : ARMv7 Processor rev 3 (v7l) BogoMIPS : 126.00 Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd08 CPU revision : 3 Hardware : BCM2711 Revision : a03141 Serial : 1000000097594db7 Model : Raspberry Pi Compute Module 4 Rev 1.1 Kernel Version $ uname -a Linux cmr-pv2-1t00-0001 6.12.25-rt9-v7l #1 SMP PREEMPT_RT Thu Sep 25 11:53:00 CEST 2025 armv7l GNU/Linux OS Version $ cat /etc/os-release PRETTY_NAME="Raspbian GNU/Linux 12 (bookworm)" NAME="Raspbian GNU/Linux" VERSION_ID="12" VERSION="12 (bookworm)" VERSION_CODENAME=bookworm ID=raspbian ID_LIKE=debian HOME_URL="http://www.raspbian.org/" SUPPORT_URL="http://www.raspbian.org/RaspbianForums" BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs" CodeSys runtime 4.13.0.0 So far we tested runtime versions up to 4.18.0.0, here are the results : * 4.13.0.0 --> Not working ❌ * 4.14.0.0 --> Not working ❌ * 4.15.0.0 --> Not working ❌ * 4.16.0.0 --> Not working ❌ * 4.17.0.0 --> Working ✅ * 4.18.0.0 --> Working ✅ There is nothing in the 4.17.0.0 release note that mentions that, so I'm not sure what to think about this. Is this a known problem within the CodeSys development team ? If yes, how do you follow CM4 hardware evolutions ? Is there a way of making this work without having to update the runtime version ? We have several products working with the 4.13.0.0 runtime and we would like to avoid having to update them all. BR
Last updated: 2026-02-02

Post by brandonje on [Error] IoDrvEtherNetIP Library with Weintek ^{CODESYS Forge talk (Post)}
I'm using weintek and Codesys V3.5 SP22 when I try to charge an ethernetIP device show me this error: ------ Build started: Application: Device.Application ------- Typify code... [ERROR] cip object, 4.9.0.0 (codesys): TCPIP_Interface: C0231: Expression of type 'BOOL' expected in this place [ERROR] cip object, 4.9.0.0 (codesys): TCPIP_Interface: C0077: Unknown type: '(_pPhysicalLink^._xLinkState <> CmpSysEthernet.OperStatus.SYSETH_OPERSTAT_Up)' [ERROR] cip object, 4.9.0.0 (codesys): TCPIP_Interface: C0077: Unknown type: 'CmpSysEthernet.OperStatus.SYSETH_OPERSTAT_Up' [ERROR] cip object, 4.9.0.0 (codesys): TCPIP_Interface: C0062: 'CmpSysEthernet.OperStatus' is no structured variable [ERROR] cip object, 4.9.0.0 (codesys): TCPIP_Interface: C0063: 'CMPSYSETHERNET, 3.4.3.0 (3S - SMART SOFTWARE SOLUTIONS GMBH)' contains no definition for 'OperStatus' [ERROR] cip object, 4.9.0.0 (codesys): SendEthFrame [TCPIP_Interface]: C0077: Unknown type: 'SysEthernetFrame' [ERROR] cip object, 4.9.0.0 (codesys): SendEthFrame [TCPIP_Interface]: C0046: Identifier '_diAdapterNumber' not defined [ERROR] cip object, 4.9.0.0 (codesys): SendEthFrame [TCPIP_Interface]: C0032: Cannot convert type 'Unknown type: '_diAdapterNumber'' to type 'DINT' [ERROR] cip object, 4.9.0.0 (codesys): SendEthFrame [TCPIP_Interface]: C0032: Cannot convert type 'Unknown type: 'ADR(ethFrame.ethData)'' to type 'POINTER TO StructEthernetframe' [ERROR] cip object, 4.9.0.0 (codesys): SendEthFrame [TCPIP_Interface]: C0077: Unknown type: 'ethFrame.ethData' [ERROR] cip object, 4.9.0.0 (codesys): SendEthFrame [TCPIP_Interface]: C0077: Unknown type: 'SysEthernetFrame' [ERROR] cip object, 4.9.0.0 (codesys): SendEthFrame [TCPIP_Interface]: C0032: Cannot convert type 'Unknown type: 'ethFrame.udFrameLen'' to type 'ANY' [ERROR] cip object, 4.9.0.0 (codesys): SendEthFrame [TCPIP_Interface]: C0077: Unknown type: 'SysEthernetFrame' [ERROR] cip object, 4.9.0.0 (codesys): _OpenEthAdapter [TCPIP_Interface]: C0032: Cannot convert type 'Unknown type: '((driverInstance * 2) + 1)'' to type 'ANY' [ERROR] cip object, 4.9.0.0 (codesys): _OpenEthAdapter [TCPIP_Interface]: C0077: Unknown type: '(driverInstance * 2)' [ERROR] cip object, 4.9.0.0 (codesys): _OpenEthAdapter [TCPIP_Interface]: C0077: Unknown type: 'driverInstance' [ERROR] cip object, 4.9.0.0 (codesys): _OpenEthAdapter [TCPIP_Interface]: C0046: Identifier 'driverInstance' not defined [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [TCPIP_Interface]: C0077: Unknown type: 'SysEthernetFrame' [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [TCPIP_Interface]: C0231: Expression of type 'BOOL' expected in this place [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [TCPIP_Interface]: C0077: Unknown type: 'SIZEOF(ethFrame.ethData)' [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [TCPIP_Interface]: C0077: Unknown type: 'ethFrame.ethData' [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [TCPIP_Interface]: C0077: Unknown type: 'SysEthernetFrame' [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [TCPIP_Interface]: C0018: 'ethFrame.udFrameLen' is no valid assignment target [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [TCPIP_Interface]: C0077: Unknown type: 'SysEthernetFrame' [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [TCPIP_Interface]: C0032: Cannot convert type 'Unknown type: 'ADR(ethFrame.ethData)'' to type 'POINTER TO BYTE' [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [TCPIP_Interface]: C0077: Unknown type: 'ethFrame.ethData' [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [TCPIP_Interface]: C0077: Unknown type: 'SysEthernetFrame' [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [TCPIP_Interface]: C0201: Type 'SysEthernetFrame' is not equal to type 'SysEthernetFrame' of VAR_IN_OUT respectively REFERENCE 'ethFrame' [ERROR] cip object, 4.9.0.0 (codesys): _CloseEthAdapter [TCPIP_Interface]: C0046: Identifier 'ethClose' not defined [ERROR] cip object, 4.9.0.0 (codesys): _CloseEthAdapter [TCPIP_Interface]: C0018: 'ethClose' is no valid assignment target [ERROR] cip object, 4.9.0.0 (codesys): _CloseEthAdapter [TCPIP_Interface]: C0046: Identifier '_diAdapterNumber' not defined [ERROR] cip object, 4.9.0.0 (codesys): _CloseEthAdapter [TCPIP_Interface]: C0032: Cannot convert type 'Unknown type: '_diAdapterNumber'' to type 'DINT' [ERROR] cip object, 4.9.0.0 (codesys): _CloseEthAdapter [TCPIP_Interface]: C0046: Identifier '_diAdapterNumber' not defined [ERROR] cip object, 4.9.0.0 (codesys): _CloseEthAdapter [TCPIP_Interface]: C0018: '_diAdapterNumber' is no valid assignment target [ERROR] cip object, 4.9.0.0 (codesys): _CloseEthAdapter [TCPIP_Interface]: C0046: Identifier '_stName' not defined [ERROR] cip object, 4.9.0.0 (codesys): _CloseEthAdapter [TCPIP_Interface]: C0018: '_stName' is no valid assignment target [ERROR] cip object, 4.9.0.0 (codesys): _CloseEthAdapter [TCPIP_Interface]: C0046: Identifier '_stDescription' not defined [ERROR] cip object, 4.9.0.0 (codesys): _CloseEthAdapter [TCPIP_Interface]: C0018: '_stDescription' is no valid assignment target [ERROR] cip object, 4.9.0.0 (codesys): AddressConflictDetection [TCPIP_Interface]: C0231: Expression of type 'BOOL' expected in this place [ERROR] cip object, 4.9.0.0 (codesys): AddressConflictDetection [TCPIP_Interface]: C0077: Unknown type: '(_pPhysicalLink^._xLinkState = CmpSysEthernet.OperStatus.SYSETH_OPERSTAT_Up)' [ERROR] cip object, 4.9.0.0 (codesys): AddressConflictDetection [TCPIP_Interface]: C0077: Unknown type: 'CmpSysEthernet.OperStatus.SYSETH_OPERSTAT_Up' [ERROR] cip object, 4.9.0.0 (codesys): AddressConflictDetection [TCPIP_Interface]: C0062: 'CmpSysEthernet.OperStatus' is no structured variable [ERROR] cip object, 4.9.0.0 (codesys): AddressConflictDetection [TCPIP_Interface]: C0063: 'CMPSYSETHERNET, 3.4.3.0 (3S - SMART SOFTWARE SOLUTIONS GMBH)' contains no definition for 'OperStatus' [ERROR] cip object, 4.9.0.0 (codesys): Recv [TCPIP_Interface]: C0077: Unknown type: 'SysEthernetFrame' [ERROR] cip object, 4.9.0.0 (codesys): Recv [TCPIP_Interface]: C0046: Identifier '_diAdapterNumber' not defined [ERROR] cip object, 4.9.0.0 (codesys): Recv [TCPIP_Interface]: C0032: Cannot convert type 'Unknown type: '_diAdapterNumber'' to type 'DINT' [ERROR] cip object, 4.9.0.0 (codesys): Recv [TCPIP_Interface]: C0046: Identifier '_diAdapterNumber' not defined [ERROR] cip object, 4.9.0.0 (codesys): Recv [TCPIP_Interface]: C0032: Cannot convert type 'Unknown type: '_diAdapterNumber'' to type 'DINT' [ERROR] memory block manager, 3.5.21.30 (codesys): ObjectRetain [Disposable]: C0448: Operator '__XADD' is not supported by your current target. At least runtime system version 3.5.14.0 is required. [ERROR] memory block manager, 3.5.21.30 (codesys): ObjectRelease [Disposable]: C0448: Operator '__XADD' is not supported by your current target. At least runtime system version 3.5.14.0 is required. [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [LLDP_Management]: C0077: Unknown type: 'SysEthernetFrame' [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [LLDP_Management]: C0201: Type 'SysEthernetFrame' is not equal to type 'SysEthernetFrame' of VAR_IN_OUT respectively REFERENCE 'frame' [ERROR] cip object, 4.9.0.0 (codesys): SendFrame [LLDP_Management]: C0201: Type 'SysEthernetFrame' is not equal to type 'SysEthernetFrame' of VAR_IN_OUT respectively REFERENCE 'ethFrame' [ERROR] cip object, 4.9.0.0 (codesys): CreateFrame [LLDP_Management]: C0077: Unknown type: 'SysEthernetFrame' [ERROR] cip object, 4.9.0.0 (codesys): CreateFrame [LLDP_Management]: C0032: Cannot convert type 'Unknown type: 'ADR(frame.ethData[0])'' to type 'POINTER TO BYTE' [ERROR] cip object, 4.9.0.0 (codesys): CreateFrame [LLDP_Management]: C0077: Unknown type: 'frame.ethData[0]' [ERROR] cip object, 4.9.0.0 (codesys): CreateFrame [LLDP_Management]: C0077: Unknown type: 'SysEthernetFrame' [ERROR] cip object, 4.9.0.0 (codesys): CreateFrame [LLDP_Management]: C0032: Cannot convert type 'Unknown type: 'SIZEOF(frame.ethData)'' to type 'UDINT' [ERROR] cip object, 4.9.0.0 (codesys): CreateFrame [LLDP_Management]: C0077: Unknown type: 'frame.ethData' [ERROR] cip object, 4.9.0.0 (codesys): CreateFrame [LLDP_Management]: C0077: Unknown type: 'SysEthernetFrame' [ERROR] cip object, 4.9.0.0 (codesys): CreateFrame [LLDP_Management]: C0018: 'frame.udFrameLen' is no valid assignment target [ERROR] cip object, 4.9.0.0 (codesys): CreateFrame [LLDP_Management]: C0077: Unknown type: 'SysEthernetFrame' [ERROR] iodrvethernetip, 4.9.0.0 (codesys): Receive [UcmmReceiver]: C0448: Operator '__COMPARE_AND_SWAP' is not supported by your current target. At least runtime system version 3.5.14.0 is required. [ERROR] iodrvethernetip, 4.9.0.0 (codesys): Send [UcmmReceiver]: C0448: Operator '__COMPARE_AND_SWAP' is not supported by your current target. At least runtime system version 3.5.14.0 is required. [ERROR] iodrvethernetip, 4.9.0.0 (codesys): Enqueue [UcmmQueue]: C0448: Operator '__COMPARE_AND_SWAP' is not supported by your current target. At least runtime system version 3.5.14.0 is required. [ERROR] iodrvethernetip, 4.9.0.0 (codesys): Enqueue [UcmmQueue]: C0448: Operator '__XADD' is not supported by your current target. At least runtime system version 3.5.14.0 is required. [ERROR] iodrvethernetip, 4.9.0.0 (codesys): Enqueue [UcmmQueue]: C0448: Operator '__XADD' is not supported by your current target. At least runtime system version 3.5.14.0 is required. [ERROR] iodrvethernetip, 4.9.0.0 (codesys): Dequeue [UcmmQueue]: C0448: Operator '__XADD' is not supported by your current target. At least runtime system version 3.5.14.0 is required. [ERROR] iodrvethernetip, 4.9.0.0 (codesys): Dequeue [UcmmQueue]: C0448: Operator '__COMPARE_AND_SWAP' is not supported by your current target. At least runtime system version 3.5.14.0 is required. [ERROR] iodrvethernetip, 4.9.0.0 (codesys): Dequeue [UcmmQueue]: C0448: Operator '__XADD' is not supported by your current target. At least runtime system version 3.5.14.0 is required. [ERROR] asynchronous job manager, 5.0.0.0 (codesys): ExtendAsync [FactoryBase]: C0448: Operator '__COMPARE_AND_SWAP' is not supported by your current target. At least runtime system version 3.5.14.0 is required. Compile complete -- 71 errors, 0 warnings Build complete -- 71 errors, 0 warnings : No download possible
Last updated: 2026-08-20

Post by yr00 on OPC UA datasource low read frequency ^{CODESYS Forge talk (Post)}
Hello everyone, I am trying to test the OPC UA client feature in Codesys. My setup is the following; I have a Codesys simulation/ visualization running on Control Win V3. My OPC UA server is hosted on a Siemens 1518 PLC using PLCSim Advanced. The setup is completely virtual so there are no really PLCs. Everything is on my laptop. Writing data from the Codesys simualtion to the server is very quick. I have a PLC program running on another 1500 PLC which reads data from simulation via the server, and changes in the simulation (e.g. button pressed) appear within hundreds of miliseconds if not tens of miliseconds in my PLC program. However, when it comes to reading data from the OPC UA Server by Codesys, it taks around 1-2s. I connected a UAExpert client and it gets update very quickly so I am fairly sure the problem is with Codesys. I have tried changing the update rate in datasource -> General and Diagnosis, but it doesn't seem to have an effect. Do you guys have any suggestion on what I can do?
Last updated: 2023-08-29

Post by toby on Ethercat Servo Setup ^{CODESYS Forge talk (Post)}
Hi Everyone, I have a simple project with a single servo, but its my first time using Codesys and motion, so I'm a little confused and lost, I've tried to read the tutorial online, but I'm not having much luck sorry. Can I please ask for some pointers. I have a ComfilePi HMI (Raspberry Pi) communicating to a Omron R88D-1SN08H-ECT amplifier. Please see the attached project file (which is better for sharing, the project file, or a archive?). This file was simply for testing the motion of the servo before anything else is tested with it. The project simply rotates the servo 1 rotation when called for, but the speed can vary based on user input. Nothing much fancy. As yet, I haven't had any servo movement, no errors on the amplifier display. How do I link the motion FBs to the physical drive? Thank you very much for any help you can offer. I'm sorry if I'm doing something very stupid or basic and getting it wrong. Have a good day. Toby
Last updated: 2023-09-20

Post by oi18ct on ARM SL Development Board Recommendation ^{CODESYS Forge talk (Post)}
Hello codesys forum, My company is looking at developing a solution with Codesys ARM SL. The requirements will not tax the capabilities of Codesys. I would like to buy an AMR 7 or 8 Dev Board for experimenting. I am looking for a recommendation as I have minimal experience with Linux. Any input from the forum would be most appreciated as the hardware requirements as provided by Codesys for ARM SL seem pretty minimal (basically a arm7 or 8 with Debian is all). Our needs are small in scale- something like 8 digital inputs, 6 digital outputs, 2 analog inputs and 1 analog output. A small gui will be published via web visualization for external display (no local display). Communications with ModbusTCP and uart/RS485. It may be necessary to access i2c and make c or python calls to some existing code that is pretty small. Something like the EMCraft STM32MP1 SOM Starter Kit or Octavo Systems OSD32MP1-RED development board? Ideally something that has a path to a SoM for production. Kontron appears to have some interesting options too. Just having a hard time deciding where to start. Thanks in advance... LC
Last updated: 2023-11-11

Post by nizrahel on OpC UA server on Raspberry Pi 64 SL runtime ^{CODESYS Forge talk (Post)}
Hi all! I'm working on an home project using a Raspberry Pi 3 device with Codesys for Raspberry Pi 64 SL runtime. I would like to create the HMI interface with Siemens WinCC Unified (or Advanced) configuring the Raspberry as OPC UA server. I tryed everything, but I didn't find the way to let the OPC UA connection works using UaExpert. I tryed to use anonymous connection, authenticated connection and the ip address instead of the server name in the path connection. There is no way to connect to the OPC UA server and I was asking myself if this feature is really supported for the runtime version used. Another strange thing I noted, is that is not possible to quickly create an OPC UA certificate in the Security Screen, as show in any tutorials. I have correctly created the Symbol Configuration enabling the OPC UA feature. I attach to this topic some printscreen of the actual configuration (sorry for the italian language interface, but I didn't find the way to switch to english). Thank you very much in advance for your support and advices!
Last updated: 2023-12-03

Post by faceplant on CmpDynamicText unresolved references ^{CODESYS Forge talk (Post)}
Hello! I am new to codesys so I am sorry if this is not the right place to ask this question. I am using codesys V3.5 SP20 Patch 1 + (64-bit) and a Groov EPIC PLC (GRV-EPIC-PR2). I am trying to build and deploy my application to the PLC, but when I log in I get 6 errors (codesys_error.png). It seems that the errors have to do with the CmpDynamicText system library which I have as version 3.5.20.0. I have tried to add CmpDynamicText to the ComponentManager section in the PLC's CODESYSControl.cfg file as described in this forum post and still hit the same error. I noticed that the library is grayed out in the library manager, which I think might be the issue. However I don't remember if it was grayed out before I encountered this issue. Please let me know if I can provide anymore info. Thank you!!!
Last updated: 2024-07-19

Post by karel-bas on Loosing connection to emulation running on Linux ^{CODESYS Forge talk (Post)}
Hello, I am trying to emulate my code but for some reason my Codesys IDE keeps loosing connection to the emulator. I am constantly pinging virtual machine on which its running and its running fine, but codesys refuses to reconect to it, and is not able to rediscover it. Codesys 3.5 SP20 Patch 1 I have linux installed like image in attachment.(using version 4.12) Linux VM is set up to use up to 4 cores and 8gb of ram, with nothing else runing on it. I dont have a license so I am aware that the emulation shouldnt run for more then 120 minutes I am able to, login, get sysinfo, reboot etc from codesys IDE for certain period of time (5minutes) then my connection gets lost, sometimes I can login again, but sometimes i have to reboot the VM. Any suggestions what might be the issue ?
Last updated: 2024-09-19

Post by hyys12 on Help understanding analog in-/outputs ^{CODESYS Forge talk (Post)}
Hello. I am currently working on a WAGO PLC, where I am trying to wrap my head around how the analog inputs and outputs work in codesys. I have looked far and wide on the internet, for a general introduction to the whole concept, but I have not had any luck with finding anything that helped me understand it better. The whole goal is for me to be able to read an analog input from a temperature sensor, as well as using an analog output, to control a frequency inverter. I know these have nothing to do with each other, but that is all I have on hand right now. I am trying to program this using Ladder Diagram. The only thing is, that every video/guide I have seen/read using LD, just adds a whole lot of function blocks, to do all kinds of stuff they don't explain. My general question is, how would one go ahead and read the analog input, as well as transmit an analog output? Is there some kind of specific function block I would have to use for this, or some great video I can watch, to understand the inner workings. Is it somehow possible to see the values the PLC recieved/sends? Regards.
Last updated: 2024-12-11

Post by mubeta on Strange problem with the ‘MC_SetPosition’ function ^{CODESYS Forge talk (Post)}
CoDeSys 3.5.19.7 Target Berghof MX6 In a simple SoftMotion programme with two stepperless modular axes from CMZ, one is simply controlled in speed, but a spot must perform a positioning. I use the function MC_SetPosition() both to reference the axis at power-up and also to correct the actual position to a fixed machine reference detected with proximity. The function has only one instance and I actually use a booelan variable to control the ‘Execute’ input. Well, I cannot correctly change the axis position on the fly if it is running at high speed. The servomotor works in a speed range between 0°/s and 720°/s, (gearbox output with a 1:6 ratio). As long as the servomotor is operating at speeds below about 400 °/s, the function is able to correct the position correctly even when forcing values far apart, but at high speeds, from 400 °/s upwards, the correction no longer takes place. For example, trying to correct the position of 280° into 300° with absolute mode, the axis that is moving at speed actually shifts the position by a few degrees, not the expected 20. I don't understand why with the servo drive running slowly the position shift occurs correctly, while increasing in speed it no longer works.
Last updated: 2025-01-09

Post by canplum on Codesys 3.5.21 fails to copy file to USB ^{CODESYS Forge talk (Post)}
Although I have set in /etc/codesyscontrol/CODESYSControl_User.cfg the [SysFile] PlaceholderFilePath.1=/media/pi, $usb$ PlaceholderFilePath.1.View=1 PlaceholderFilePath.1.Volatile=1 I am not able to copy a file to this directory defined by the placeholder. Neither SysProcess.SysProcessExecuteCommand2 nor SysFileCopy nor FileCopy is working. If I try to copy the same file to /home/pi all is working fine. I also can create and open a different file by using SysFileOpen. I don't understand why the system allows to open (create) and write files into that directory but doesn't allow to copy into it. Obviously there is a rights problem with the USB drive. I have already set the permissions to drwxr-xr-x 2 and the user to pi but without any success. With 3.5.16 I never had such an issue. Is there anybody with some hints how to solve that problem? Cheers, canplum
Last updated: 2025-05-23

Post by kurtk on dynamic modbus devices ^{CODESYS Forge talk (Post)}
I am CODESYS neophyte getting my wheels on. My goal is to re-platform an existing PLC application written in 61131 ST I've got the majority of the code/variables in a compilable form - excluding all the IO and comms nuances I am not sure whether this the right forum An important functionality which I implemented on the other platform was totally dynamic modbus devices... Most configurations I have come across impose static MB configs in which all configured devices MUST be present and functional... I have monkeyed around with MB enough to know that herding a half dozen MB cats into a working config can be tricky. I just do them one at a time and dynamically turn them on/off in whatever combination is convenient with ID, IP, baud, parity etc being runtime tweakable. I am totally curious whether this is possible with codesys, or whether its device configuration corrals one into a static cage which requires re-building the code to support flexible variations. Best regards
Last updated: 2025-08-19

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