Post by phoward131 on Alarm State Icon ^{CODESYS Forge talk (Post)}
I am trying to create an icon on an overview screen that depicts if an alarm group has active alarms, active acknowledged alarms, or inactive unacknowledged alarms (waiting for confirmation). I've attempted to set up Notification Actions in the Alarm Class to set variables based on state changes but have been unable to find a clean and effective way to do this. Because an action on any alarm will trigger the variable to be set as instructed, I'm struggling to find a way to configure it for what I need (ie if two alarms activate, then one deactivates, the variable for indicating an alarm is active would be cleared after the single deactivation). I've been pointed toward the Alarm Manager example project but I'm finding it too complicated to understand how to implement it in my own project. Has anyone come up with another good way to indicate the states of alarms or a simpler usage of the Alarm Manager functions?
Last updated: 2024-04-23

Post by kblundy on Change the Opening Position of the Dialog using VU.FbOpenDialog ^{CODESYS Forge talk (Post)}
I hope the community can help me with this. I need to use the Visu Utils FbOpenDialog to control the opening and closing of a dialog. I have the Opening and Closing working, but I can’t get the dialogue's position to be controlled. The code looks like this: PROGRAM OPEN_DIALOG VAR xOpenLatchSettingDialog : BOOL; TopLeftDialog : VisuStructPoint ; fbOpenLatchSettingsDialog : VU.FbOpenDialog ; END_VAR IF xOpenLatchSettingDialog THEN xOpenLatchSettingDialog:= FALSE ; TopLeftDialog.iX := 100; TopLeftDialog.iY := 23; fbOpenLatchSettingsDialog(sDialogName := 'visu_AlarmLatchSettings', xExecute := xOpenLatchSettingDialog , xModal := TRUE, itfClientFilter := VU.Globals.OnlyTargetVisu, pTopLeftPosition := ADR(TopLeftDialog)); CloseVisuDialog(sDialogName:= 'visu_AlarmLatchSettings'); ELSE xOpenLatchSettingDialog:= TRUE ; IF fbOpenLatchSettingsDialog.xError THEN xOpenLatchSettingDialog := FALSE; END_IF END_IF I can't seem to work out a way to make the values in TopLeftDialog.iX and TopleftDialog.iY be passed correctly in the call and for it to change the position of the dialogue box. The code is compiled, but the position has not been changed. Any guidance or suggestions for revising this code would be incredibly valuable. Your insights could be the key to solving this issue.
Last updated: 2024-05-05

Post by caprez95 on Trace Restart Visuelement ^{CODESYS Forge talk (Post)}
Hello everyone. I've been struggling with the problem for a long time that I can't reset (restart) a trend (visual element). With the example I have now managed to control the trace recording via the CmpTraceMgr library. But how do I get this trace recording into a visual element? The code looks like this: // Configure trace IF xInit THEN // Create a trace packet PacketConfig.pszName := ADR('IECTraceConfiguration.Trace1'); // Name of trace PacketConfig.pszApplicationName := ADR('IECTraceConfiguration'); // Name of the application PacketConfig.pszIecTaskName := ADR('Task'); // Name of the task PacketConfig.pszComment := ADR('Demo packet'); PacketConfig.ulEveryNCycles := 1; PacketConfig.ulBufferEntries := 1000; PacketConfig.ulFlags := TRACE_PACKET_FLAGS.TRACE_PACKET_FLAGS_TIMESTAMP_MS AND TRACE_PACKET_FLAGS.TRACE_PACKET_FLAGS_AUTOSTART; IF (NOT fbTraceManager.CreatePacket(PacketConfig := PacketConfig, hPacket=>hPacket1)) THEN xError := TRUE; END_IF // Create a trace record RecordConfig.pszVariable := ADR('iSignal'); // This is the name of variable to record RecordConfig.tcClass := INT_TO_UDINT(TypeClass.TYPE_INT); // Type of the recording variable RecordConfig.ulSize := SIZEOF(iSignal); // Size of the recording variable pApp := AppFindApplicationByName('IECTraceConfiguration', 0); AppGetAreaOffsetByAddress(pApp, ADR(iSignal), ADR(RecordConfig.tvaAddress.taAddress.Area.usArea), ADR(RecordConfig.tvaAddress.taAddress.Area.ulOffset)); // Get and set area offsets RecordConfig.tvaAddress.ulAddressFlags := TRACE_VAR_ADDRESS_FLAGS_IEC OR TRACE_VAR_ADDRESS_FLAGS_AREA_OFFSET; RecordConfig.ulGraphColor := 16#FF00FF00; // green RecordConfig.ulGraphType := 1; // Line with points IF (NOT fbTraceManager.AddRecord(RecordConfig := RecordConfig, hPacket := hPacket1, hRecord => hRecord1)) THEN xError := TRUE; END_IF xInit := FALSE; END_IF // Starts the recording IF xStart THEN IF (NOT fbTraceManager.StartPacket(hPacket := hPacket1)) THEN xError := TRUE; END_IF xStart := FALSE; END_IF // Stop the recording IF xStop THEN IF (NOT fbTraceManager.StopPacket(hPacket := hPacket1)) THEN xError := TRUE; END_IF xStop := FALSE; END_IF // Reset the recording IF xReset THEN IF (NOT fbTraceManager.ResetPacket(hPacket := hPacket1)) THEN xError := TRUE; END_IF xReset := FALSE; END_IF
Last updated: 2024-06-04

Post by farren on How to stay in a method until something is finished. ^{CODESYS Forge talk (Post)}
I know I'm thinking about this wrong -- too many decades of procedural and event-driven programming and only a few months of PLC ST programming...... I've created a visualization with a button that when pushed calls a method. I want the method to take a pressure reading, wait one minute and then take another pressure reading. I'm looking for leaks. I'm using TON for the delay. It seems like what is happening is that the method gets called once and it takes the first reading and starts the TON. But then execution continues, leaves that method call, and the second reading never happens. I can force the method to keep running until the whole thing is done with a While loop, but I understand that is considered BAD in PLC programming. If it push the button again to call the method again, it picks up where it left off and if the timer is complete then it runs the remaining code. How do I keep that method running until it is complete with just one call without using a while loop that ties up the PLC for a minute? Thanks! -Farren
Last updated: 2025-10-31

Post by pernockham on How to recognize licenses SMALL, MEDIUM, LARGE by CmpCodemeter ^{CODESYS Forge talk (Post)}
Im trying to read out active license by CmpCodeMeter but am not sure of the combination of ProductCode and FeatureMap that each of CONTROL, VISU and COM / SMALL, MEDIUM, LARGE equals. Started by trying CodeMGetContentByFirmcode (and productCode) expecting error 18 / Not Available if asking for a higher level of license compared to what I know is active, but function just returned the requested productcode and a featuremap Is this the way or is it better to use CodeMOpen? Which seems to also require a featureCode. Where can I find info on required featureCode? ProductCodes according to google: Control (PLC Runtime) Small (S) 16#00002FFF 12287 * Medium (M) 16#00003000 12288 Large (L) 16#00003001 12289 Visualization (WebVisu) Small (S) 16#00003002 12290 Medium (M) 16#00003010 12304 * Large (L) 16#00003003 12291 Communication (Com) * Small (S) 16#00003004 12292 Medium (M) 16#00003005 12293 Large (L) 16#00003006 12294 Thanks!
Last updated: 2026-10-06

Post by josul on Alarm Manager - Disk IO Error and Memory Double Free Exception ^{CODESYS Forge talk (Post)}
I have encountered an issue with Alarm management. A simple Alarm table to display active alarms. Historical alarms can be hidden and can also be cleared. Overall a history of 10000 alarms before it cycles. On one instance this error displayed: "Some kind of disk I/O error ocurred. Check disk space". Picture attached. I have seen this with an online change, but it was resolved by a full download. But this case was running for weeks and displaying alarms fine. The logged errors though were unusual. Associated log entries (multiples of these were logged): 2026-10-07T12:17:17.603Z, 0x0000001f, 8, 1, 0, #### Exception: Memory double free detected: <cmp>AlarmConfig</cmp> <addr>0x80330d0</addr> And later in the same day, the entire application encountered an exception: 2026-10-07T19:33:48.583Z, 0x00000011, 8, 81, 3, #### Exception: *EXCEPTION* [<excpt>AccessViolation</excpt>] occurred: App=[<app>Application</app>], T> 2026-10-07T19:33:48.583Z, 0x00000011, 8, 81, 3, #### Exception: *SOURCEPOSITION* App=[<app>Application</app>] area=<area>0</area>, offset=<off>9548256> I haven't found any explanation for a "Memory double free detected" and I'm unsure how to prevent it occurring. I suspect it might be the cause of the "Access Violation" exception, but how can I be sure of this? Would defining VISU_NO_EXCEPTION_HANDLING be advisable or not in a production environment? Any advice is welcome.
Last updated: 2026-10-12

Post by bbm1995 on Camera RTSP Feed ^{CODESYS Forge talk (Post)}
Hi dgrard, I had the same issue for a long time, but on a WAGO webvisu. Now I'm glad that I can share my solution. I don't know if you are trying to use the webvisu or the target visu, but this works on webvisu: Get "go2rtc" and set it up according to the documentation. I'm running the Windows binary. Here's my example of the go2rtc.yaml config file (contains working example streams): api: listen: ":1984" # default ":1984", HTTP API port ("" - disabled) origin: "*" # default "", allow CORS requests (only * supported) static_dir: "www" # default "", folder for static files (custom web interface) tls_listen: ":443" # default "", enable HTTPS server tls_cert: "./SSL/fullchain.pem" tls_key: "./SSL/privatekey.pem" streams: # Streams with multiple links will fall back on the next link. ABUS TVIP48511: - rtsp://<username>:<password>@<hostname>:<port>/ch1/main - rtsp://<username>:<password>@<hostname>:<port>/ch1/sub # Diagnostic connections Kirchhoff Institute for Physics - Germany: http://pendelcam.kip.uni-heidelberg.de/mjpg/video.mjpg Blanton Bottling, Kentucky - USA: http://camera.buffalotrace.com/mjpg/video.mjpg Tokyo - Japan: http://61.211.241.239/nphMotionJpeg?Resolution=320x240&Quality=Standard Tampere Hacklab - Finland: http://tamperehacklab.tunk.org:38001/nphMotionJpeg?Resolution=640x480&Quality=Clarity Soltorget Pajala - Sweden: http://195.196.36.242/mjpg/video.mjpg Kaiskuru Skistadion - Norway: http://77.222.181.11:8080/mjpg/video.mjpg webrtc: listen: ":8555" #ice_servers: # - urls: [ "stun:localhost:3478" ] # username: "" # credential: "" Access the webinterface of go2rtc and get the link of your stream. Use the link as for your browser frame in the visualization. Depending on your device, you need to be able to access the file /etc/lighttpd/lighttpd.conf or /etc/lighttpd/webvisu.conf and change the contents similar to this one, otherwise you'll get CORS and CSP errors in the browser and you won't be able to view the stream on the webvisu: # Webvisu specific settings $SERVER["socket"] =~ port_webvisu_used_any { url.redirect += ( "^/webvisu/?$" => "/webvisu/webvisu.htm" ) $HTTP["url"] =~ "^/webvisu/?" { var.response_header_policy_webvisu = ( # CSP for WebVisu, allowing inline sources. "Content-Security-Policy" => "default-src 'self' 'unsafe-inline'; media-src *; frame-src *", # CORS for WebVisu, allowing any origin to access. "Access-Control-Allow-Origin" => "*", # Tell older browsers that this page can only be displayed if all ancestor # frames are same origin to the page itself. "X-Frame-Options" => "SAMEORIGIN" ) # Response header policy for WebVisu setenv.set-response-header = var.response_header_policy_webvisu setenv.set-response-header += var.response_header_policy_common }
Last updated: 2023-11-14

Post by vstrom on Codesys v3.5.22.10 - Internal error:System.AggregateException...Value cannot be null...Parameter name: expLValue ^{CODESYS Forge talk (Post)}
Hi to all, I receive an error when I try to compile a project that in v.3.5.21.50 have no problem. The error seems to comes out when I add the Visualization part into the project. The complete error is: [ERROR] Internal error:System.AggregateException: One or more errors occurred. ---> System.Exception: Internal error in Code ---> System.ArgumentNullException: Value cannot be null. Parameter name: expLValue at _3S.CoDeSys.LanguageModelManager.LanguageModelBuilder.CreateAssignmentExpression(IExprementPosition pos, IExpression expLValue, IExpression expRValue, Operator kindof) at _3S.CoDeSys.LanguageModelManager.LanguageModelBuilder.CreateAssignmentStatement(IExprementPosition pos, IExpression expLeft, IExpression expRight) at ..
(IExpression , IExpression ) at ..
(_IAssignmentExpression ,  ) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.AssignmentStatementReplacer.ReplaceExpressionStatement(_IExpressionStatement expressionStatement, _ICompiledPOU cpou) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_IIfStatement ifst) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_IIfStatement ifst) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_IForStatement forloop) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at ..
(_ICompiledPOU ) at ..(_ICompiledPOU ) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Codegeneration.
(_ICompiledPOU , _ISignature ) at ..
(_ICompiledPOU ) at ..
(_ICompiledPOU& ) at ..
() --- End of inner exception stack trace --- --- End of inner exception stack trace --- at _3S.CoDeSys.Compiler35220.CompilerPhases.CompilerPhase5_Codegenerator.
(IList1 ) at _3S.CoDeSys.Compiler35220.CompilerPhases.CompilerPhase5_Codegenerator.
(IScope5 , IList1 ) at _3S.CoDeSys.Compiler35220.CompilerPhases.CompilerPhase5_Codegenerator.
(ICodegenerator ) at _3S.CoDeSys.Compiler35220.CompilerPhases.CompilerPhaseControllerGenerateCode.() at _3S.CoDeSys.Compiler35220.CompilerPhases.CompilerPhaseControllerGenerateCode.() ---> (Inner Exception #0) System.Exception: Internal error in Code ---> System.ArgumentNullException: Value cannot be null. Parameter name: expLValue at _3S.CoDeSys.LanguageModelManager.LanguageModelBuilder.CreateAssignmentExpression(IExprementPosition pos, IExpression expLValue, IExpression expRValue, Operator kindof) at _3S.CoDeSys.LanguageModelManager.LanguageModelBuilder.CreateAssignmentStatement(IExprementPosition pos, IExpression expLeft, IExpression expRight) at ..
(IExpression , IExpression ) at ..
(_IAssignmentExpression ,  ) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.AssignmentStatementReplacer.ReplaceExpressionStatement(_IExpressionStatement expressionStatement, _ICompiledPOU cpou) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_IIfStatement ifst) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_IIfStatement ifst) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_IForStatement forloop) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at ..
(_ICompiledPOU ) at ..(_ICompiledPOU ) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Codegeneration.
(_ICompiledPOU , _ISignature ) at ..
(_ICompiledPOU ) at ..
(_ICompiledPOU& ) at ..
() --- End of inner exception stack trace ---<---
Last updated: 2026-04-22

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 clarenced on ERROR: Calling the program "AlarmStorage_Prg" is not allowed from multiple tasks ^{CODESYS Forge talk (Post)}
Using codesys v3.5 SP21 Patch 1. We are using Visualization to display alarms. Other then the automatically created AlarmManagerTask, there is no code written to call AlarmStorage_Prg. Any ideas why we would be seeing this error in the log? The runtime actually shutdown. Not sure if that was caused by this error or not. 2025-08-03T02:45:35.444Z, 0x00001012, 4, 0, 0, * ERROR: Calling the program "AlarmStorage_Prg" is not allowed from multiple tasks. 2025-08-03T03:48:15.294Z, 0x00001012, 4, 0, 0, * ERROR: Calling the program "AlarmStorage_Prg" is not allowed from multiple tasks. 2025-08-03T04:38:11.557Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state * We recommend a reboot of the controller now! * 2025-08-03T04:38:11.576Z, 0x0000010f, 8, 1, 0, #### Exception: SysSemEnter - Semaphore deadlock detected - owner thread died [tid:726740] - system may be in an inconsistent state. 2025-08-03T04:38:11.576Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state * We recommend a reboot of the controller now! 2025-08-03T04:38:11.576Z, 0x00000001, 8, 260, 3, #### Exception: HANDLED EXCPT* <excpt>NonContinuable</excpt> in CH_COMM_CYCLE 2025-08-03T04:40:12.308Z, 0x00000001, 1, 0, 35, CODESYS Control shutdown... 2025-08-03T04:40:13.436Z, 0x00000071, 1, 0, 13, Webserver stopped 2025-08-03T04:40:13.437Z, 0x00000114, 2, 1, 0, !!!! Warning: task_signalhandler_exit [MainTask] lost cycles: 14809 2025-08-03T04:40:13.497Z, 0x00000001, 1, 0, 10, [UNLOADED] IEC|Dynamic: <cmp>IecVarAccess</cmp>, <id>0x00001007</id> <ver>3.5.3.64</ver> 2025-08-03T04:40:13.506Z, 0x00000001, 1, 0, 10, [UNLOADED] IEC|Dynamic: <cmp>AlarmMgr</cmp>, <id>0x00001012</id> <ver>4.7.0.0</ver> 2025-08-03T04:40:13.513Z, 0x00000071, 2, 0, 14, !!!! Warning: Unbalanced calls to WebServerRequestRunning/WebServerReleaseRunning 2025-08-03T04:40:13.513Z, 0x00000001, 1, 0, 10, [UNLOADED] IEC|Dynamic: <cmp>IECVisualization</cmp>, <id>0x0000100c</id> <ver>4.7.0.0</ver> 2025-08-03T04:40:13.611Z, 0x00000124, 1, 0, 0, Provider 'AddressSpaceFragment Provider' (version 0x3051500) unregisterd at the OPC UA server. 2025-08-03T04:40:13.611Z, 0x00000124, 1, 0, 0, Provider 'OPC UA for IEC-61131-3' (version 0x3051500) unregisterd at the OPC UA server. 2025-08-03T04:50:17.708Z, 0x00000001, 1, 0, 36, CODESYS Control shutdown done
Last updated: 2025-08-04

Post by yannickasselin on MQTT QoS 1 & 2 ^{CODESYS Forge talk (Post)}
Using Wireshark, I can see that the broker sends the QoS 1 or 2 messages when Codesys MQTT client reconnects but they are just discarded and not acknowledged by Codesys MQTT Client. So the broker holds on to them and tries to send them back to Codesys every time the client reconnects but they are always discarded by Codesys. There really seems to be an issue with QoS 1 & 2 in Codesys. It really does not behaves like it should.
Last updated: 2024-10-31

Post by imdatatas on MC_MoveAbsolute: C0138: No matching 'FB_Init' method found for instantiation of SMC_MoveAbsRelPerformerImpl [ERROR] ^{CODESYS Forge talk (Post)}
Hello everyone, Updating and converting an existing working Codesys Softmotion axis control project to the latest Codesys IDE and Softmotion version always gives the following error message during compilation. " [ERROR] sm3_basic, 4.18.0.0 (codesys): MC_MoveAbsolute: C0138: No matching 'FB_Init' method found for instantiation of SMC_MoveAbsRelPerformerImpl " -- Previously working version: Codesys IDE SP18.50, Softmotion 4.10.0.0 -- Later updated version with the error: Codesys IDE SP21.10, Softmotion 4.18.0.0 Has anyone encountered a similar issue? How can this be resolved? Regards, Imdat
Last updated: 2025-07-24

Post by camilloo on Control for Linux SL on Ubuntu Core ^{CODESYS Forge talk (Post)}
(dhumphries) I followed your advice and tried it on Ubuntu Server. Was a good choice. Your material was also very helpful :). Thanks for Your help! I no longer have problems connecting to Ubuntu. However, I still cannot install Virtual PLC. I'm currently getting a missing path message: "C:\Program Files\CODESYS 3.5.19.60\CODESYS\CODESYS Virtual Control for Linux SL\Delivery\virtuallinux\VirtualControlAPI.py." It looks as the package: "CODESYS Virtual Control for Linux SL" was not installed. But, there isn't one in CODESYS Store or I'm doing something incorrectly.
Last updated: 2024-03-03

Post by ewi04 on Git with visu ^{CODESYS Forge talk (Post)}
The problem (2) with the parent child conflict is resolved with Codesys V3-5 SP19 Patch 2 (Visu 4.4.0.0). The other issues unfortunately not.
Last updated: 2023-08-17

Post by sunfloweeerrry on Edgelogix-rpi-1000-cm4102032 SPI port connection to PiFace I/O Driver in CodeSys. ^{CODESYS Forge talk (Post)}
Please anyone help there is not a lot reference about this.
Last updated: 2023-08-21

Post by totorovic on CSVReaderInit returns error : INVALID_HANDLE ^{CODESYS Forge talk (Post)}
Actually no solution. We are waiting Codesys reply. Latest version of library : licence error message Version 1.0.0.5 : INVALID_HANDLE error message
Last updated: 2023-08-21

Post by eschwellinger on Raspberry Pi Control SL MC - Restoring License not working anymore! ^{CODESYS Forge talk (Post)}
you need to use 'my question ' in the CODESYS store
Last updated: 2023-08-24

Post by gregor on PFC 200 - codesys V3.5 ^{CODESYS Forge talk (Post)}
As far as I know, only if someone downloaded sourcecode to the PLC.
Last updated: 2023-08-25

Post by eschwellinger on Problems connecting to Codesys 4.9.0.0 runtime on my Wago PFC200 ^{CODESYS Forge talk (Post)}
I've send out a workaround for this.. Best Regards Edwin
Last updated: 2023-08-26

Post by eschwellinger on new feature: list/view plclogs from the plcs ^{CODESYS Forge talk (Post)}
Since 1.31.0.0 version there is this really helpful feature to browse the plclogs remote via CODESYS Automation server:
Last updated: 2023-08-30

Post by martinlithlith on CODESYS Control for Raspberry Pi SL on Raspberry Pi 4b ^{CODESYS Forge talk (Post)}
Hi! Thanks for your reply! I'll have a go then!
Last updated: 2023-09-06

Communication error (#0), logout performed,please check if plc is connected ^{CODESYS Forge talk (Thread)}
Communication error (#0), logout performed,please check if plc is connected
Last updated: 2023-09-11

Post by timvh on Get the numer of day ^{CODESYS Forge talk (Post)}
For a demo application related to date/time, see: https://forge.codesys.com/prj/codesys-example/date-and-time/home/Home/
Last updated: 2023-09-14

Post by eschwellinger on EtherCat Master cannot open network adaptor on Win10x64 target ^{CODESYS Forge talk (Post)}
you need to have either Winpcap (versions < CODESYS 3.5.19.0) or Npcap installed
Last updated: 2023-09-20

Post by lepewe4ka on Sysmac Studio to Codesys ^{CODESYS Forge talk (Post)}
Could you send me an example? I would like to generate a data structure using XML files.
Last updated: 2023-09-20

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