Post by etalp on Eaton XC303 firmware update via USB ^{CODESYS Forge talk (Post)}
Hi, I'm struggling with updating my xc303 to firmware 3.5.17. It is possible only via USB port. I've installed proper update files on the USB then plug it into the PLC's USB port and restarted the device. Shortly after LED's on the PLC started to blink, so updating process has started. But after 10 minutes the PLC LED turned off and after all I could't serach for this PLC in Codesys, but could ping it. Could someone eplain to me proper procedure of updating the fimrware in XC303 via USB? Is it neccesary to STOP the PLC switch after pluging the USB?
Last updated: 2025-10-15

Post by msegon on OPC UA Client failed to connect ^{CODESYS Forge talk (Post)}
Hi everyone, I would appreciate your help with a problem I've been working on for a few days but haven't been able to resolve. I'm trying to read data from Tridium Niagara 4.15 OPC UA Server, but I get the error BadCertificateInvalid. As far as I understand, you need to add a CA certificate somewhere to establish a secure connection, but I don't know where. 2025-10-27T09:06:43.247Z, 0x0000008d, 4, 0, 0, * ERROR: OpcUa_Channel_BeginConnect: Cannot create secure channel without certificates! 2025-10-27T09:06:43.247Z, 0x00001090, 4, 0, 0, * ERROR: Datasource: Error Failed (268468242) in state Connecting I tried communicating without encryption, but it doesn't find the point. Has anyone managed to establish encrypted OPC UA communication?
Last updated: 2025-10-28

Post by malte on OPC UA multiple Endpoints ^{CODESYS Forge talk (Post)}
My CODESYS OPC UA server provides endpoints using both the hostname and the IP address. Connecting via the IP address works fine, but connecting via the hostname does not. The endpoint list shows both opc.tcp://<hostname>:4840 and opc.tcp://<ip>:4840. When using the hostname, the OPC UA client (UA Expert) fails to connect. Using the IP address connects without issues. Main goal is to conect via Python but opcua-asyncio seems to prefer the hostname. How can I configure CODESYS or my system so that the OPC UA connection via hostname also works properly or disable it completly? Running Codesys for PFC200 sl 4.18.0.0
Last updated: 2025-10-28

Post by pernockham on Trend legend naming and access/config to/of trend/legend-variables ^{CODESYS Forge talk (Post)}
Trying the web-version of trend-data. This seems to be a impressive tool, but I lack/cant find a number of what I would think are important parts. There does not seem to be a way to get away from the dot.notated variable naming in the legend.. A developer might want the dot-notation but an end-customer will surely not. For instance I want to display 12 temperatures, instead of t1, t2 etc.. they will be named. gvl_io.unit[1].trend.temps.t1_a gvl_io.unit[1].trend.temps.t1_b gvl_io.unit[1].trend.temps.t1_c gvl_io.unit[1].trend.temps.t2_a .. gvl_io.unit[1].trend.temps.t4_b.. gvl_io.unit[1].trend.temps.t4_c.. Quite a lot of unnecessary text/data taking space from the actual trend => Is there a way to access/interface the legend-data programmatically so I can change the presentation/naming?
Last updated: 2025-12-16

Post by gseidel on Can't get SMC_SmoothPath to work ^{CODESYS Forge talk (Post)}
Hi bertus, I cannot see any problem in the code you posted. Just some ideas: What is the value of D_ANGLE_TOL? - Do you need the assignment bAbort := NOT bDecoder? Does it help to leave it out? Any errors (e.g. SMC_SmoothPath.Error/ErrorID) or PLC log messages? What if you comment out SMC_SmoothMerge and SMC_LimtiDynamics, is corner smoothing still not working? Is bDecode written from a different task (e.g. visu)? Then I would recommend to assign to a local variable (bDecodeLocal := bDecode) and use that for all FBs. Otherwise, FBs might see different values of bDecode in a single cycle, which will cause problems. Regards, Georg
Last updated: 2025-12-17

Post by pernockham on Trend legend naming and access/config to/of trend/legend-variables ^{CODESYS Forge talk (Post)}
There seems to have been included an updated in the last release 4.9.0.0 or am I wrong (I think I tried out these settings previously without giving the result I wanted contrary to what I see today)? Now an empty check box for "display variable name" is effective, and will present the Variable with the "Description" instead. Perfect! Seems to be some minor formatting still that needs adjustment. See attached screenshot. The apostrophe "'" between "description" I suppose should not be there? Also I guess the same apostrophe (although not visibly shown) gives an extra space between the variable-description and the ":"?? Thanks!
Last updated: 2025-12-19

Post by timvh on CPU + EtherCAT redundancy ^{CODESYS Forge talk (Post)}
It works well with two Wago 750-8210's. I helped a few customers setting this up. But it should work with any device which can control EtherCAT I/O, is real-time and has sufficient network interfaces. Two network adapters can be used to create a redundant EtherCAT network (you need 2 additional switches for this). The other network adapters can be used to interconnect the 2 PLC's (synchronization). We noticed that if you exchange variable lists that there could be some issues if you have long lists. So what we did is use a SoftPLC on a server that contains all the settings which continuously sends network packages (GVL sender) and which is received by both PLC's (network receiver). Switching over is done in milliseconds. The bus doesn't notice the change-over. EtherCAT communication works flawlessly.
Last updated: 2026-01-30

Post by winki on Error in licence activation ^{CODESYS Forge talk (Post)}
Hello, I think I understand: On my debian gateway I have done: sudo cmu --list cmu - CodeMeter Universal Support Tool. Version 8.30a of 2025-May-06 (Build 6885) for Linux/ARMHF 64-Bit Copyright (C) 2007-2025 by WIBU-SYSTEMS AG. All rights reserved. List all locally connected CmContainers: - CmContainer with Serial Number 130-XXXXXXXX and version 3.00 (empty) - CmContainer with Serial Number 130-XXXXXXXX and version 3.00 (locked) Result: 2 CmContainer(s) listed. The licence has been activated with a computer Name, but the guy who did it make a mistake in the name, so he changed it after to have activate the licence. I think this has created a second container. The licence is actived on the other container.
Last updated: 2026-02-06

Post by timvh on EXCEPTION [watchdog] how to find position cause ^{CODESYS Forge talk (Post)}
Monitor what your current cycle time is (in the Task Configuration when you are online). If this is sometimes close to 200ms, then change your code (e.g. limit the loops, or prevent copying a lot of data between objects). Or just set the Watchdog time (or sensitivity) higher if you don't care that it sometimes takes longer than 200ms. If you want to find out which objects in your application consume the most time, then buy a PDE (Professional Developer Edition) license. With this you get a license for the Profiler. This can help you a lot to find the root cause, because it will create a nice overview of all objects, their calls and the time (percentage) it takes to execute it.
Last updated: 6 days ago

Post by konstantin on Lenze i950 Servo and WAGO PFC200 ^{CODESYS Forge talk (Post)}
Hello, basically the i950 drive support CiA402 Basic and CiA402 Advanced modes. I attached pictures of both mode supported functions. It also support CSP, VL, CSV and CST modes. It seems the homing mode is in CiA402 Advanced mode but how can you not have the homing mode in both modes? It is a vital part of any servo system. If I use the SoftMotion standard demo mode, I can move the servo absolute and relative but cannot home it. But in SoftMotion Light mode, I cannot execute any motion function. Here is the official manual for i950 servo drive - i950 Documentation Best Regards Konstantin Kolev
Last updated: 2 days ago

Post by thommy54 on CODESYSControl_User cfg richtig konfigurieren ^{CODESYS Forge talk (Post)}
Hallo, nach Erwerb eines neueren Raspberry pi 4 (V1.5) musste ich zwangsläufig von Codesys 3.5.16 hochwechseln - ich habe auf 3.5.20.1 geupdated. Da schlugen mir plötzlich ne Menge Einschränkungen entgegen, deren Behebung einige Zeit dauerte. Eine davon ist, das ein SysFile.SysFileOpen nicht mehr funktioniert. Ich habe das Problem mit Einträgen in der /etc/CODESYSControl.cfg behoben: [SysFile] FilePath.1=/etc/, 3S.dat IecFilePath.1=/proc/, cpuinfo IecFilePath.2=/proc/, iomem PlaceholderFilePath.1=/sys/devices/w1_bus_master1, $OneWire$ PlcLogicPrefix=1 ; ; ---------------------- ; selbst eingefügt PlaceholderFilePath.2=/home/root, $my_home_root$ PlaceholderFilePath.3=/etc/init.d, $my_conf$ PlaceholderFilePath.4=/var/lib/mpd, $my_music$ PlaceholderFilePath.5=/root/Rasp_SPS_Filesystem, $my_Rasp$ Ob die Einträge sich etwas überlappen, kann mir gern jemand sagen, das ist aber nicht das Problem. Ich habe bei den vielen Versuchen, das Teil zum Laufen zu bringen, bemerkt, daß die Einträge auch ganz schnell mal verschwinden. Das ist ja auch so beschrieben, wenn die nächste Version kommt, sind meine Einträge weg. Da ich ähnliche Probleme mit dem Funktionieren von "SysProcessExecuteCommand2()" hatte, die ich ebenfalls mit Einträgen in die /etc/CODESYSControl.cfg hätte beheben können, habe ich gelesen, das man "private" Einträge lieber in die Datei /etc/CODESYSControl_User.cfg machen soll. Gesagt getan und "SysProcessExecuteCommand2()" lief: [SysProcess] Command=AllowAll Command.0=shutdown Aber auch irgendwo stand, das so ein Beteichner wie [SysFile] oder [SysProcess] nur einmal in den beiden Files /etc/CODESYSControl.cfg oder(!) /etc/CODESYSControl_User.cfg vorkommen darf. Das ist nun die eigentliche Frage! Ist das so ? Bei [SysProcess] ist das kein Problem, das gibt es in /etc/CODESYSControl.cfg nicht. Aber bei [SysFile] sieht das anders aus. Da sind 5 Zeilen schon in /etc/CODESYSControl.cfg drin. Würde ich diese in die User-Datei rüberschieben, könnte beim nächsten Update was fehlen oder, oder... Lasse ich es so wie es ist, sind meine Einträge beim Update weg - das sollte ja verhindert werden. Kann da jemand genaue Auskunft geben ?? Vielen Dank Thomas
Last updated: 2024-06-28

Post by youness on No source code available (cip object) ^{CODESYS Forge talk (Post)}
Hi yotaro, hope your problem was resolved. I had the same, but with an other library title. This exception is not detected during compilation, but rather at a given position in the program (when switching to a given visualization). Although the exception is generated at this point, it does not involve the visualization in question. This error is due to one of 3 reasons: 1) A division by zero somewhere: The program is able to detect divisions by zero at compile time. But in the case of a variable, which takes a valid value at init and changes to 0 at a later stage. 2) An invalid pointer: (either because it has a value of 0, or because it points outside the memory reserved for the program) is being dereferenced. Locate any pointers or interfaces you have in the code and check them - you should also be wary of mixing inline modifications and pointers. 3) Array overflow: Generally when a processing operation is executed outside the array's definition range. Example: a write loop with n iterations is executed on an array of dimmension n-1. On the other hand, the error message may not appear. In the latter case, the error may have fatal consequences, as the overflow has induced writing to potentially forbidden memory areas. This problem can be explained by the fact that it's not always the adjacent memory areas of PLC_PRG that are overwritten, but the memory areas that are randomly allocated to the array during compilation. In this case, however, there is no entry in the log, so you need to integrate the "Implicit Check function", which checks the line of code generating the error. To integrate this functions, click on Application --> POU for implicit controls Regards,
Last updated: 2024-07-16

Post by tk096 on Some 'pathetic' errors in SoftMotion program ^{CODESYS Forge talk (Post)}
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). In general: - Motion function blocks have to be called until they report 'Done', 'Error', 'CommandAborted' or a subsequent motion FB with BufferMode=Aborting is started in the current cycle. - Setting the Execute input to FALSE will not abort any ongoing motion of the motion function block. 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. I think the error SMC_FB_WASNT_CALLED_DURING_MOTION is only a follow-up (and misleading) error that results from the axis not being in operational state anymore (bus problems). Is there an error 'regulator or start not set' in the device log before the error 'motion generating FB wasn't called for at least one cycle'? Which error does the respective function block (Halt.ErrorId) report?
Last updated: 2024-07-22

Post by clarenced on Multiple applications on one device sharing variables. ^{CODESYS Forge talk (Post)}
I am looking for an example of how to run 2 applications on 1 device that would have global variables shared between the two apps. In this case what I am trying to do is to have the main program logic run as one application and then have the visualization run as a second application. I find this https://us.store.codesys.com/media/n98_media_assets/files/000013-F/0/Multiple%20Applications_en.pdf, that talks about exactly what I want to do, but I can't find the download. The main reason I want to do this is for download speed. Right now it takes at least a minute to download our application to the PLC. A simple program downloads to the PLC in a very short time, but add visualization and the download time gets much longer. If I could download the program separately from the visualization I think that a simple program change would take very little time to download. I have tried create a GVL in the POUs view. This partly works in that both applications can see the GVL, but they each create their own instance of it and the variables are not shared between the two apps. There are ideas of using OPCUA but this raises problems with licensing and having to move any variable that needs to be shared into the Symbol Configuration. This adds a lot of management to keep this up to date. Any ideas would be appreciated thanks.
Last updated: 2025-02-20

Post by laurits on Max lines of code, codesys CNC ? ^{CODESYS Forge talk (Post)}
Hi, yes now its working, to get "QUEUE.bFull" to work, I've had to set the "QUEUE.nNumReservedEntries" to 3. (I tried different values here, only effect for larger values i can see is the the queue capacity gets smaller.) I've noticed the movement is slowing down when it reaches the end of the "fill Up", must be because of the "checkVelocity" can only see the current "QUEUE". Any way of solving this ? BUF : ARRAY[0..20000] OF SMC_GEOINFO; xp : ARRAY[1..100000] OF REAL; yp : ARRAY[1..100000] OF REAL; CASE iState OF 000: IF R_TRIG_bStart.Q THEN iState := iState + 1; END_IF bReady := FALSE; //initialize Queue GEO.dT1:=0; GEO.dT2:=1; GEO.dToolRadius := 0; GEO.dVel := 15000; GEO.dVelEnd := 15000; GEO.dAccel := 2000; GEO.dDecel := 2000; GEO.iObjNo := 0; GEO.piDestPos.dX := 0; GEO.piDestPos.dY := 0; QUEUE.bEndOfList := FALSE; QUEUE.nPastMarker := -1; QUEUE.nWritePos := 0; QUEUE.pbyBuffer := ADR(BUF[0]); n := 0; sMC_CheckVelocities(bExecute:= FALSE); SM3_CNC.SMC_SetQueueCapacity(ADR(QUEUE), SIZEOF(BUF)); QUEUE.nNumReservedEntries := 3; 001: FOR i := 1 TO SIZEOF(xp)/SIZEOF(xp[1]) DO xp[i] := UDINT_TO_REAL(i) * 0.01; yp[i] := UDINT_TO_REAL(i) * 0.01; END_FOR iState := iState + 1; 002: WHILE NOT QUEUE.bFull DO // when the Queue is full, wait until it has been processed by the following FBs n := n + 1; GEO.iSourceLine_No := n; GEO.piStartPos := GEO.piDestPos; // copy last destination GEO.iMoveType := LIN; // generate linear movement GEO.iObjNo := GEO.iObjNo + 1; // calculate number GEO.piDestPos.dX := xp[n]; // generate position GEO.piDestPos.dY := yp[n]; SMC_CalcLengthGeo(pg := ADR(GEO)); // calculate length of object with the help of the standard function SMC_AppendObj(poq:=ADR(QUEUE), pgi:=ADR(GEO)); //append object to queue IF n = UDINT_TO_DINT( SIZEOF(xp)/SIZEOF(xp[1])) THEN // all target positions processed QUEUE.bEndOfList := TRUE; iState := iState + 1; EXIT; END_IF END_WHILE sMC_CheckVelocities(bExecute:= TRUE, poqDataIn:= ADR(QUEUE)); bReady := TRUE; // Send message to smc_interpolator to start 003:
Last updated: 2025-06-04

Post by jeindhoven on Deploying to raspberry pi 5 hangs ^{CODESYS Forge talk (Post)}
Hi CoDeSys support forum, hope that this is the correct place to ask this. Might be double as i am new to Codesys and dont know all terminology. I am trying to test Codesys with a virtual plc on a raspberry pi 5. Already figured that i need Tools -> Deploy Control SL, enter Communication parameters. Codesys says "Connected". Then tab "Deployment", there i select "CODESYS Control for Raspberri Pi SL" and "4.16.0.0 (all)". Click "Install" and the gui turns grey and unresponsive. The titlebar says "Untitled1.project - CODESYS (Not Responding)" as well. Restarting Codesys and checking shows no package was installed. How to deploy the runtime? Thank you in advance for your time. Edit: After some patience, an error showed up: "Error when sending ssh heartbeat: Session operation has timed out" "Error installing codesyscontrol" Any pointers to what remote command might have failed, or log of some sort, would be welcome. Software versions: Codesys version 3.5.21.10 Raspberry pi 5 (deployment machine): $ uname -a Linux raspberrypi 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023 aarch64 GNU/Linux $ lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 11 (bullseye) Release: 11 Codename: bullseye $ apt list --installed | grep openssh-server openssh-server/oldstable,now 1:8.4p1-5+deb11u3 arm64 Development machine: $ uname -a Linux 2B 6.1.0-35-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.137-1 (2025-05-07) x86_64 GNU/Linux $ lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 12 (bookworm) Release: 12 Codename: bookworm VirtualBox Version 7.0.26 r168464 (Qt5.15.8) Virtual OS: Windows 10 Pro 64-bit (10.0, Build 19045) .NET version 4.0.30319.42000
Last updated: 2025-06-22

Post by dnordenberg on BOOL variable in OPC UA and modbus simultaneously ^{CODESYS Forge talk (Post)}
How can I have an BOOL variable that is read/write in both modbus TCP server and from OPC UA at the same time? Variables with %MX.n %QX.n addressing which is used for BOOL/coils in modbus server is not allowed in OPC UA symbol list on Schneider M251 controllers. I have already asked on Schneiders forum but there are not a lot of codesys experts over there :( So OPC symbols can't have a address and the modbus TCP server needs a address. So how should I do it then? It seems like an impossible combination. Since I want read/write access from both ways I can't just simply make a second variable and assign it the value of another since it would be a one way assignment. I also tried using VAR_CONFIG which then makes the address syntax %Q or %M in my main variable list and that fools OPC UA Symbol Configuration to allow it and then I add the complete %MX.n address of it in the VAR_CONFIG list. This semi works, I can toggle the BOOL from modbus but the OPC UA symbol seems to be read only. It displays symbol status but nothing happens when I toogle it. I think I need another way to have the variables and symbols pointing to the same bits in memory... My plan B is to write a BOOL array compare FB that saves a history bit from previous cycle and if that does not match current status at next cycle for either the OPC symbol or the modbus variable then it copies the new status over to the other. Maybe ugly but it's like my last alternative. Kind regards David
Last updated: 2025-07-14

Post by john-robinson on Limiting Memory Access of an Array to Within its Bounds ^{CODESYS Forge talk (Post)}
Recently we had an issue regarding some simple code to calculate a rolling average. The code indexes from zero to 199 to properly store the current input into a circular buffer which then allows us to calculate a rolling average: VAR input_5s : REAL; outs_arr : ARRAY[0..199] OF REAL; i : USINT := 0; END_VAR ___ //this code runs every five seconds, calculating a rolling average outs_arr[i] := input_5s; i := i + 1; output := OSCAT_BASIC.ARRAY_AVG(ADR(outs_arr), SIZEOF(outs_arr)); IF i >= SIZEOF(outs_arr) THEN i := 0; END_IF There is a simple bug in this code where the index will be set to 0 when it has surpassed the length of the array in bytes (800 in this case) rather than larger than the number of reals in the array (200). The solution here is simple, replacing i >= SIZEOF(outs_arr) with i >= SIZEOF(outs_arr)/SIZEOF(outs_arr[0]). In this example when the index increased to 201 and the line outs_arr[201] := input_5s was called, codesys arbitrarily wrote to the address in memory that is where outs_arr[201] would be if the array was that long. I would like to find a way to wrap the codesys array inside of a wrapper class that checks if an input is within the bounds of an array before writing to that value. I know how I would implement that for a specific array, I could create a method or class that takes an input of an array of variable length, ie. ARRAY[*] OF REAL, but I don't know how to make this for any data type. I am wondering if anyone has ever done anything similar to this, or has any better suggestions to ensure that none of the programmers on this application accidentally create code that can arbitrarily write to other locations in memory.
Last updated: 2024-03-05

Post by superjojo2002 on Licensing info not available. ^{CODESYS Forge talk (Post)}
I updated the docker container runtime to version 4.11.0.0. and build the container with this "Dockerfile" FROM arm64v8/debian:11.6 RUN apt-get update RUN apt-get install -y wget sudo unzip libusb-1.0-0-dev procps ENV CDS_VERSION "4.11.0.0" ENV EDGE_VERSION "4.11.0.0" ENV URL "https://store-archive.codesys.com/ftp_download/3S/LinuxARM64/2302000039/$CDS_VERSION/CODESYS%20Control%20for%20Linux%20ARM64%20SL%20$CDS_VERSION.package" ENV EDGE_URL "https://store-archive.codesys.com/ftp_download/3S/EdgeGatewayLinux/000120/$EDGE_VERSION/CODESYS%20Edge%20Gateway%20for%20Linux%20$EDGE_VERSION.package" RUN wget --output-document=/tmp/codesys.package $URL && \ unzip -p /tmp/codesys.package '*codemeter*.deb' > /tmp/codemeter.deb && dpkg -i /tmp/codemeter.deb && \ unzip -p /tmp/codesys.package '*codesyscontrol*.deb' > /tmp/codesys.deb && dpkg -i /tmp/codesys.deb RUN wget --output-document=/tmp/edge.package $EDGE_URL && \ unzip -p /tmp/edge.package '*arm64.deb' > /tmp/edge.deb && dpkg -i /tmp/edge.deb EXPOSE 11740 1217 11743 ENTRYPOINT ["/bin/sh", "-c" , "/etc/init.d/codemeter start && /etc/init.d/codemeter-webadmin start && /etc/init.d/codesyscontrol start && /etc/init.d/codesysedge start && tail -f /dev/null"] Now cmu -x" returns root@sensoredge-field-netfield-produktmanagment:/# cmu -x cmu - CodeMeter Universal Support Tool. Version 8.00 of 2023-Nov-28 (Build 5967) for Linux/ARMHF 64-Bit Copyright (C) 2007-2023 by WIBU-SYSTEMS AG. All rights reserved. But still CODESYS development system reports that it needs a dongle and when I click install that "value cannot be null. Parameter name: containerToLicenses" It seems that Codemeter is forced to look for a dongle instead of a CMsoftcontainer. Can you confirm that CODESYS licensing works also when CODESYS is installed in a Docker container?
Last updated: 2024-03-21

Post by leandroct on Error reading files after runtime update from 4.0.0.0 to 4.8.0.0 ^{CODESYS Forge talk (Post)}
Since version 19 they changed how file access is handle. There are two solutions: 1. You change where the file is stored (need to go to: /PlcLogic/) 2. You can, if you don´t want to store at PlcLogic, add the following line in the CODESYSControl.cfg under [SysFile]: ForceIecFilePath=0 The CodesysControl.cfg is at C:\ProgramData\CODESYS\CODESYSControlWinV3x64\xxPROJECT_NUMBERxx\ Here the email they sent me: "with the 3.5.19 Version we changed how files are handled. See following issue: CDS-81506 - CODESYS Control SysFile system file access vulnerability. There are two solutions: 1. You change where the file is stored (need to go to: /PlcLogic/) 2. You can, if you don´t want to store at PlcLogic, add the following line in the CODESYSControl.cfg under [SysFile]: ForceIecFilePath=0 Here is the official release-note: [[COMPATIBILITY_INFORMATION]] With the activation of ForceIecFilePath the file access from IEC is now restricted to the configured paths only (file sandbox)! [SysFile] ForceIecFilePath=1 (new default) The standard path is the current directory, the PlcLogic subfolder or a configured path. Every file access outside of this path is configured via PlaceholderFilePath, for example access to temporary files or removable media: [SysFile] PlaceholderFilePath.1=/tmp, $TMP$ PlaceholderFilePath.2=/media/usb, $USB$ PlaceholderFilePath.2.Volatile=1 For more information see our tutorial FilePath & Placeholders. To restore the old behavior ForceIecFilePath may be configured as follows: [SysFile] ForceIecFilePath=0 BUT WE HIGHLY RECOMMEND TO LEAVE THIS SETTING AT ITS NEW DEFAULT VALUE! "
Last updated: 2024-05-07

Post by xcqt on Oop best practice ^{CODESYS Forge talk (Post)}
Hi all, I’m currently trying to improve my OOP structure in CODESYS and I’m looking for some input on how others approach this. I understand the basics like inheritance, interfaces, abstract FBs, methods, and properties, but I still struggle a bit with the overall architecture and what’s considered clean or scalable in bigger projects. As an example, I’m working on two different energy meter function blocks: FB_EnergyMeter_MQTT reads data from MQTT (strings) FB_EnergyMeter_Modbus reads data from Modbus (words) Both have their own Update() method and implement the same interface (something like IF_EnergyMeter). Later on, I’ll probably add more meter types, but they should all behave the same from the controller’s point of view. Now, there’s a FB_GridControl block that needs power data from these meters. I see two options here: Define the meter blocks inside FB_GridControl and call them directly (for example fbModbusMeter.UpdateModbus()). Keep the meter blocks outside and pass them into FB_GridControl as interface references, so the control block doesn’t know which specific type of meter it’s dealing with. Option 2 feels cleaner and more flexible to me, but I’m not entirely sure how to handle the data flow in that case. Should I pass the meter instance through an interface reference (REFERENCE TO IF_EnergyMeter)? Or is there a better way to link the external FBs to the control block? I’d like to hear how you structure this kind of setup or see an example from someone who has done something similar. EDIT: I think i need to do something like this fbModbusUpdateInput(wInput:= wWordValue); fbMqttUpdateInput(strInput:= strStringValue); IF bUseMqtt THEN Meter REF = fbMqttUpdateInput; ELSE Meter REF = fbModbusUpdateInput; END_IF fbControl.SetMeter(UsedMeter := Meter); Or am i thinking wrong? Thanks, Thomas
Last updated: 2025-10-16

Post by yannickasselin on Lenze i950 Servo and WAGO PFC200 ^{CODESYS Forge talk (Post)}
I don't have time to go through the whole manual but as I said earlier, the servo drive does not support any of the modes needed for SoftMotion Light to work. If you want to use the full SoftMotion, you could use SMC_Homing function block to do the homing. This function block does not use the Homing Mode. It still uses the CSP mode and does the logic in Codesys runtime instead of in the servo drive. Read the documentation about it to see if it fits your needs. But if your controller only supports SoftMotion Light, I am afraid you will not be able to use the i950. I do a lot of motion stuff with different servo brands. Some support all the modes needed for SoftMotion Light and some don't. You really need to make sure the modes are supported before choosing a brand over another. I tend not to use brand specific controllers in order not to be limited by their supported features. I usually choose a PC (Linux or Windows) and install the Codesys runtime and licences myself. This is the most flexible way to use Codesys in my opinion. Depending on how many axes are needed in your project, a full SoftMotion license may not be more expensive than SoftMotion Light because SoftMotion is available as Application based license whereas SoftMotion Light is not. But of course, SoftMotion is harder on the CPU than SoftMotion Light.
Last updated: 2 days ago

Post by lsislsis on SIGABRT Error ^{CODESYS Forge talk (Post)}
Please help us. Why we take this errors. We try different versions like 4.12.0 and 4.13.0 with same results. ;*********;<loggername>codesyscontrol.log</loggername>;<logoptions>; <enable>1</enable>; <type>normal</type>; <timestamp>rtc high resolution</timestamp>; <deactivatable>0</deactivatable>; <dump>always</dump>; <filter>0x0000000f<filter>; <maxentries>100000</maxentries>; <maxfiles>1</maxfiles>; <maxfilesize>1000000</maxfilesize>;</filter></filter></logoptions>;<entries>;Timestamp, CmpId, ClassId, ErrorId, InfoId, InfoText;ClassId: LOG_INFO =1;ClassId: LOG_WARNING =2;ClassId: LOG_ERROR =4;ClassId: LOG_EXCEPTION =8;ClassId: LOG_DEBUG =16;ClassId: LOG_PRINTF =32;ClassId: LOG_COM =64;</entries>;*********2024-11-05T08:23:59.728Z, 0x0000100c, 1, 0, 0, VisuFctCheckForUnusedClients: Removing Client with IEC-ID: 1 Time delta: T#33s1ms Locks: Paintbuffer: TRUE 2024-11-05T08:23:59.728Z, 0x0000100c, 1, 0, 0, VisuFctCheckForUnusedClients: Successfully Removed Client at Address: 547195449944, IEC-ID was: 1, EXT-ID: 431000373 2024-11-05T08:28:57.913Z, 0x0000100c, 1, 0, 0, Visu_PRG: Creating Client for Extern-ID: 347055752 2024-11-05T08:28:57.926Z, 0x0000100c, 1, 0, 0, Visu_PRG: Creating Client successful for Extern-ID: 347055752 Returned IEC-ID: 1 2024-11-05T08:30:51.103Z, 0x0000100c, 1, 0, 0, Visu_PRG: Successfully Removed Client with IEC-ID: 1, Extern-ID: 347055752 2024-11-05T08:37:36.517Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state* We recommend a reboot of the controller now! 2024-11-05T08:37:36.517Z, 0x00000111, 8, 260, 3, #### Exception: HANDLED EXCPT <excpt>NonContinuable</excpt> in CH_COMM_CYCLE 2024-11-05T08:47:42.117Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state We recommend a reboot of the controller now! 2024-11-05T08:47:42.117Z, 0x00000111, 8, 260, 3, #### Exception: HANDLED EXCPT <excpt>NonContinuable</excpt> in CH_COMM_CYCLE 2024-11-05T09:14:41.316Z, 0x00000071, 1, 0, 13, Webserver stopped 2024-11-05T09:14:44.485Z, 0x0000013d, 1, 0, 4, Number of licensed cores for IEC-tasks: 1 from 4 2024-11-05T09:14:44.487Z, 0x0000013d, 1, 0, 4, Number of licensed cores for IEC-tasks: 4 from 4 2024-11-05T09:14:44.540Z, 0x00000002, 1, 0, 2, Application [<app>Application</app>] loaded via [Download] 2024-11-05T09:14:55.894Z, 0x00001012, 1, 0, 0, Opened alarm storage file, version: 6 2024-11-05T09:14:55.951Z, 0x0000100c, 1, 0, 0, Visuinitialization starting. 2024-11-05T09:14:55.983Z, 0x0000100c, 1, 0, 0, Visuinitialization done. 2024-11-05T09:14:55.995Z, 0x00000071, 1, 0, 12, Webserver started 2024-11-05T09:15:01.753Z, 0x0000100c, 1, 0, 0, Visu_PRG: Creating Client for Extern-ID: 2279884529 2024-11-05T09:15:01.753Z, 0x0000100c, 1, 0, 0, Visu_PRG: Creating Client successful for Extern-ID: 2279884529 Returned IEC-ID: 0 2024-11-05T09:34:44.667Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state We recommend a reboot of the controller now! 2024-11-05T09:34:44.667Z, 0x00000111, 8, 260, 3, #### Exception: More than 2 exceptions in CH_COMM_CYCLE: Stop logging 2024-11-05T10:13:26.867Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state We recommend a reboot of the controller now! 2024-11-05T10:15:21.966Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state We recommend a reboot of the controller now! 2024-11-05T10:19:12.167Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state We recommend a reboot of the controller now! 2024-11-05T10:26:02.566Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state We recommend a reboot of the controller now! 2024-11-05T10:31:42.866Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state We recommend a reboot of the controller now! 2024-11-05T11:01:54.468Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state We recommend a reboot of the controller now! 2024-11-05T11:09:29.868Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state We recommend a reboot of the controller now! 2024-11-05T11:14:44.540Z, 0x0000100d, 1, 0, 0, Demo mode expired. 2024-11-05T11:27:20.868Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state We recommend a reboot of the controller now! * Regards
Last updated: 2024-11-05

Post by mubeta on Some 'pathetic' errors in SoftMotion program ^{CODESYS Forge talk (Post)}
Hello everyone, I have a very simple program for the process, but it's driving me crazy and I can't see the problems I'm left with: Short topological description: Dual Core Berghof controller with softmotion runtime version 3.5.19.30; Two axes with servodrive on canopen bus, clocked distributed from master; Ethercat I/O node; 2 ms ethercat task, 2 ms canopen bus cycle time; I/O objects of the canopen master and canopen drives connected to the ethercat task cycle; Problem 1: Two separate programs each manage their own axis and drive, with separate state machines. A first axis moves primarily in velocity, except having to position itself absolutely at a predetermined point at the end of the job; the second axis, on the other hand, is a paper unwinder that changes, for each job cycle, from actions in absolute, relative, and cam displacement with the master axis. Well, the state machine of both axes was written in such a way as to call running the useful FB and change it on state change in this way: CASE i_stateMachine OF 0: o_Power(Enable := TRUE, bRegulatorOn := FALSE, bDriveStart := FALSE, Axis := o_PaperUnwinderAxis); o_MoveAbs(Execute := FALSE, Axis := o_PaperUnwinderAxis); o_MoveRel(Execute := FALSE, Axis := o_PaperUnwinderAxis); o_CamSelect(Execute := FALSE, Master := o_MachineAxis, Slave := o_PaperUnwinderAxis, CamTable := cam_PaperUnwinder); o_CamIn(Execute := FALSE, Master := MachineEncoder, Slave := o_PaperUnwinderAxis); o_CamOut(Execute := FALSE, Slave := o_PaperUnwinderAxis); o_SetPosition(Execute := FALSE, Axis := o_PaperUnwinderAxis); IF ... THEN i_StateMachine := 10; END_IF; 10: o_Power( Enable := TRUE, bRegulatorOn := TRUE, bDriveStart := TRUE, Axis := o_PaperUnwinderAxis ); IF o_Power.Status THEN i_StateMachine := 20; END_IF; 20: (* Avanzamento carta *) o_MoveAbs( Execute := TRUE, Position := o_Somewhere, Velocity := 25.0, Acceleration := 3666.7, Deceleration := 3666.7, Jerk := 48000.0, Direction := MC_DIRECTION.positive, Axis := o_PaperUnwinderAxis ); IF o_MoveAbs.Done THEN o_MoveAbs(Execute := FALSE, Axis := o_PaperUnwinderAxis); i_StateMachine := 30; END_IF 30: d_HomingPosition := ...; o_SetPosition( Execute := TRUE, Position := d_HomingPosition, Mode := FALSE, Axis := o_PaperUnwinderAxis ); (* ... *) IF o_SetPosition.Done = TRUE THEN o_SetPosition(Execute := FALSE, Axis := o_PaperUnwinderAxis ); o_LogServer.Append(sMessage := '...', lscClass := LOGSERVER_CLASS.ALWAYS, sdt := o_CommonsMgrData.systime.sdtLocal); i_StateMachine := 40; END_IF; 50: ... The code above is a sketchy example of what I wanted to write. But it gives me a spot problem: in some, the state change results in a drive error, which is unrecoverable except with a reinitialization via SM3_ReinitDrive(). Things are improved a little if in the program I always run the call of all softmotion blocks in this way: o_Power(Axis := o_PaperUnwinderAxis); o_Jog(Axis := o_PaperUnwinderAxis); o_Halt(Axis := o_PaperUnwinderAxis); o_MoveAbs(Axis := o_PaperUnwinderAxis); o_MoveRel(Axis := o_PaperUnwinderAxis); o_CamIn(Master := MachineEncoder, Slave := o_PaperUnwinderAxis); o_CamOut(Slave := o_PaperUnwinderAxis); If I don't execute all the calls of all the motion FBs used, when exchanging machine state often (but not always), the axis goes into error with event id THE_FB_WASNT_CALL... Done a little diagnostics it seems that the FBs return the bDone, before they are completely terminated. I tried doing the machine state exchange not with the bDone bit of the FBs, but with the 'standstill' state of the axis. It didn't seem to change anything. Problem 2: During the use SM3_ReinitDrive() I get the erro in the log: "NetID 0: SDO read error for object 16#607C..." Assuming that the device involved it's one of the two servodrive, (no others device are present in the network), I don't found any object 0x607C in the 'possible object list in/out' of the two drive, and I don't understand where this object can be listed. So any ideas and suggestions regarding these two issues will be very, very welcome. If you need the source project, I am willing to send it.
Last updated: 2024-07-17

Post by smeitink on Timeout Error in Modbus Communication with WAGO PFC200 and iEM2050 Meter using 750-652 Module ^{CODESYS Forge talk (Post)}
Hi all, I'm looking for help with an issue I've come across while trying to facilitate Modbus communication between a WAGO PFC200 PLC using a 750-652 communication module and an iEM2050 Series Single Phase Energy Meter. I believe to have everything wired and setup correcty, but I keep running into a "Error time out" message, and by now I don't really know what else to try. My setup is as follows: A PFC200 Wago PLC, which has 2 750-652 Serial Interfaces extension modules connected to its field bus. I'm using one of these to talk to a Schneider iEM2050 - kWh-meter over modbus. I have connected terminal 23 (A) of the iEM2050 to connector 6 (A) on the 750-652. I have connected terminal 24 (B) of the iEM2050 to connector 2 (B) of the 750-652. I'm using 200mm of twisted together wires to connected them both, and I have placed a 120 ohm resistor between A and B at both ends. I've attached relevant pinout images to this post. I then wrote a simple program that configures the Mobus port, as per the datasheet of the iEM2050. You can find an image of the relavent page attached to this post too. This is my program: PROGRAM PLC_PRG VAR Master: FbMbMasterSerial; xIsConnected: BOOL; xError: BOOL; iIndex: INT := 1; xTrigger: BOOL; utQuery : typMbQuery := ( bUnitId := 1, // The Modbus unit or slave address bFunctionCode := 4, // Function code for reading input registers uiReadAddress := 1829, // adress for the Power on off counter uiReadQuantity := 1 // Quantity of registers to read ); iStep: INT; oStatusModbus: WagoSysErrorBase.FbResult; utResponseModbus: typMbResponse; xConnect: BOOL := FALSE; delayTimer: TON; END_VAR Master( xConnect:= xConnect, I_Port:= _750_652_24_1, udiBaudrate:= 9600, usiDataBits:= 8, eParity:= WagoTypesCom.eTTYParity.Even, eStopBits:= WagoTypesCom.eTTYStopBits.One, eHandshake:= WagoTypesCom.eTTYHandshake.None, ePhysical:= WagoTypesCom.eTTYPhysicalLayer.RS485_HalfDuplex, xIsConnected=> xIsConnected, xError=> xError, oStatus=> oStatusModbus, eFrameType:= WagoAppPlcModbus.eMbFrameType.RTU, tTimeOut:= T#5S, utQuery:= utQuery, xTrigger:= xTrigger, utResponse:= utResponseModbus); delayTimer(IN := TRUE, PT := T#3S); // Use the Q output of the timer to set xConnect after the delay IF delayTimer.Q THEN xConnect := TRUE; END_IF CASE iStep OF 0: //Wacht totdat de master de poort geopend heeft IF xIsConnected THEN iStep := 1; END_IF 1: //Stuur request naar de slave xTrigger := TRUE; iStep := 2; 2: //Wacht totdat de master klaar is met het afhandelen van de request IF NOT xTrigger THEN iStep := 3; END_IF END_CASE The TON delay before opening the port is due to a an error I encountered when opening it straight away. This seems to be a bug, as described here. However, the TON solved that particular issue. I tried reading multiple registers, but like I said, I still always end up with the "Error time out". What else can I test or try at this point?
Last updated: 2024-02-24

Sort by relevance or date