Post by nchau on Requesting ESI Files for Estun Pronet Servo Drives (EtherCAT) ^{CODESYS Forge talk (Post)}
Hi everyone, I'm currently working on a project using Estun Pronet servo drives with EtherCAT communication, and I need the appropriate ESI (EtherCAT Slave Information) files to set up the network. The specific models I'm using are: Pronet-04AEG-EC Pronet-02AEG-EC-R1 Pronet-10AEG-EC-R1 Pronet-20AEG-EC-R1 Pronet-50DEA-EC-R1 If anyone has the ESI files for these models or knows where I can download them, I would greatly appreciate your help. Thank you in advance!
Last updated: 2025-09-26

Post by mg0815 on Codesys Control log "eventbuffer full" ^{CODESYS Forge talk (Post)}
Device: RPI 3b or 3B+ System: Wheezy Codesys: 3.5.16.2 I got the Log: 2023-12-13T00:38:43Z, 0x00000054, 2,6,11, !!!! Warning: Eventbuffer full for app=<app>Application</app>; an inputevent with the tag <tag>128</tag> has been dropped This log happens aroud 10 times a second. Sometimes the controller stopped working any more. What is the reason for this? I will update this controller soon (I hope so, but in the meantime I should at least know hoe to prevent this issue) Mario
Last updated: 2023-12-14

Post by wiresplus on Cannot get INT_TO_TIME working ^{CODESYS Forge talk (Post)}
Hello, I have a simple TON timer. It is watching prime loss for a pump. The operator can set the delay via the HMI, it is an integer (seconds) As the TON uses milliseconds, we then multiply the entry by 1000 to get seconds. Seems simple, but... VAR PrimeTimer : TON; primetime : INT; END_VAR PrimeTimer(in:=State>0 AND FlowRate<MinimumFlow,pt:=INT_TO_TIME(primetime *1000)); For an entered 15 seconds (VAR primetime:=15;) the timer reads 49d17h2m26s760ms !!!! What am I doing wrong?
Last updated: 2024-01-26

Post by hsmw-wolf on How to fix Codesys Simulation Exception ? ^{CODESYS Forge talk (Post)}
Did anybody have a solution for this problem? I have the same issue and it occured as i wanted to continue work after the weekend. On Friday the simulation was working fine and on Monday thise error appears. There should be a more specific fault description to be honest. As I am writing I try to repair the installation and hope, that this will work. Still I am frustrated, because I don't know where to look for eliminating this fault. I am using CODESYS 3.5 SP19 Patch 5.
Last updated: 2024-01-29

Post by peter-skokanek on Raspberry and problem with runtime ^{CODESYS Forge talk (Post)}
Hi, Similar problem, I have license for Raspberrypi Control MC SL. It didn't work with version 4.10.0.0. I have now instaled new version 4.11.0.0. Raspberrypi Control SL. The same behavior, runtime works sometime several minutes, sometime only several seconds. The second problem is with license. There isn't available any runtime MC SL on Codesys shop, not even older version 4.10.0.0. Is it only temporarily or, MC SL will be not available more for rpi?
Last updated: 2024-02-27

Post by k4zz on Continuous Build Server ^{CODESYS Forge talk (Post)}
Hallo Martin, Thank you so much for the Code example. It works really fine for .porject Types. However, I encountered a challenge when attempting to apply it to .library Types. I also tried the option to "Perform static analysis automatically after compilation" # get Project values myProject = projects.primary # Creates an active application app = myProject.active_application # build Application and run static code analysis app.generate_code() Could you please offer any insights into why this might be occurring?
Last updated: 2024-03-15

Post by k4zz on Scripting static code analysis ^{CODESYS Forge talk (Post)}
Currently, I am working on integrating static code analysis into our CI/CD pipeline. Specifically, I have successfully performed static code analysis for .project types, and it works flawlessly. However, I have encountered difficulties in executing the same for .library types. In this regard, I have tried two methods: system.commands["staticanalysis", "run"].execute() # get Project values myProject = projects.primary # Creates an active application app = myProject.active_application # build Application and run static code analysis app.generate_code() your help is greatly appreciated.
Last updated: 2024-03-18

Post by schnepper on Error building Extension SDK Linux code ^{CODESYS Forge talk (Post)}
I'm installed the CODESYS Control for Linux SL package and am trying to use the Extension API to call a simple C function. When I get to the step to run "make all" on the Linux machine, I get the error: build interface header: out/CmpFirstTestItf.h from CmpFirstTestItf.m4 ERROR: This functionname does not contain _cext (this is mandatory, see help for details): DEF_API(void',CDECL',external_struct__fb_init',(external_struct_fb_init_struct *p)',1,0x1F77E075,0x00000001) Why does "Generate Runtime System Files" create a function that does not have cext in the name? What am I missing?
Last updated: 2024-04-01

Post by rossanoparis on RevPi CONNECT+, CODESYS, EtherCAT master "Filedbus lost synchronicity" ^{CODESYS Forge talk (Post)}
Hello @rmaas I assume, you've already verified and tuned everything regarding the EtherCAT network. In my case the problem was due to a wrong core assignement. I suggest to not use the core #0 for your EtherCAT task. The OS realtime patch, which is present on RevPi OS, uses the core #0 for its porpouses and it mustn't be used by any other task which requires realtime and deterministic features. regards Rossano
Last updated: 2024-04-11

Post by eschwellinger on License problem gateway ^{CODESYS Forge talk (Post)}
I just try to help. Anyway it is a big difference if a Store SL runtime or an oem plc and licence is used. These licenses need to be activated on plc side - so you have dependencies to the version (CODESYS and Runtime Version) Did you ever ask Epis out for this situation? They should know which license fit to their device. Even they should know if the device is capable for Softmotion and see the requiremnts in the CODESYS store: Runtime 4.9.0.0 - how should this work with Epis 3.5.16.x? Anyway refund is not a problem.
Last updated: 2024-04-26

Post by richard-wang on Codesys recipe manager - what does it do? ^{CODESYS Forge talk (Post)}
Hi All Thanks for sharing this information. For whom may not know why always get error code 16#4000 or 16#4002 while performing Recipe commands, the root cause is There is a line need to be inserted in CODESYSControl.cfg file, which is PlaceholderFilePath.1=/var/opt/codesys/PlcLogic/ I am using Pi, therefore the above path is set to my pi unit, after adding above line to my cfg file, all the Recipe commands work fine. But I still do not know how and when this file got modified though.
Last updated: 2024-04-29

Post by schnepper on Minor UI bug: cannot create SFC POU after creating a Function POU ^{CODESYS Forge talk (Post)}
After creating a Function POU, it is not possible to then create an SFC POU. Steps to recreate: * Create a new Function POU. SFC is not allowed for Functions, so SFC does not show in the Implementation language dropdown. * Click Add Object -> POU... Function is selected for Type. * Select Program * SFC is not present in the Implementation language dropdown
Last updated: 2024-05-23

Post by yofi on Raspberry Pi 4 POU not running ^{CODESYS Forge talk (Post)}
I have this error where the pou doesn't run even for simple programs like contact and a coil if i remove the pou from the task and put another one it works for one run then it stops working again in the photo we can see a contact is on but the coil connected to it is still not on and the device is in run mode I had this issue again and again any help
Last updated: 2024-06-02

Post by yofi on Raspberry Pi 4 POU not running ^{CODESYS Forge talk (Post)}
I have this error where the pou doesn't run even for simple programs like contact and a coil if i remove the pou from the task and put another one it works for one run then it stops working again in the photo we can see a contact is on but the coil connected to it is still not on and the device is in run mode I had this issue again and again any help
Last updated: 2024-06-02

Post by rene-h on VU.FbOpenDialog - TargetVisu - 2 x WebVisu ^{CODESYS Forge talk (Post)}
Hello, i am trying to find a way how to open Dialogs on a Single Visu. The options from VU.Globals are Target and WebVisu, but Webvisu opens the Dialog on both WebVisus and it should be separated. CurrentVisu can only be used when the Dialog is called from the Visu, but its all done in the Code. One Webvisu is for the User and one is for diagnostic reasons, and they should not be interfered from each other. Maybe someone can help me with this. Thanks
Last updated: 2024-06-13

Post by shaun on GAMP 5 and 21 CFR Part 11 ^{CODESYS Forge talk (Post)}
Good day I have been asked to do a project. It is for a pharmaceutical application and data needs to be logged. The spec calls for the control system to comply with GAMP 5 and 21 CFR Part 11. From what I can find online it's got to do with electronic records and validation. Has anyone developed any software using this or are there codesys librarys that can make my life easier in writing this code
Last updated: 2025-10-22

Post by ducng on SMC_FB_WASNT_CALLED_DURING_MOTION when enable MC_MoveRelative ^{CODESYS Forge talk (Post)}
Hello, I am using an Inovance PLC to control a servo via EtherCAT. When I enable MC_POWER, the drive switches to Run mode successfully. After that I call MC_MoveRelative, but I get the error SMC_FB_WASNT_CALLED_DURING_MOTION. The servo vibrates but the motor shaft does not move. I am new to EtherCAT/servo motion control, so I would appreciate any guidance or suggestions for troubleshooting this issue. Thank you in advance for your help.
Last updated: 2025-11-02

Post by imdatatas on SMC_ERROR.SMC_AXIS_NOT_READY_FOR_MOTION when using Drive Virtual ^{CODESYS Forge talk (Post)}
@ducng, Another possible situation could be that normally there are 3 inputs for MC_Power. In your above images, I can't see the "bDriveStart" input activated. As Mr. @gseidel mentioned, you need to make sure MC_Power.Status output should be TRUE. Issuing any movement command without activating the axis would naturally result in an error. For MC_Power; You can set the Enable and bDriveStart inputs to TRUE and try turning the axis activation on and off using only the bRegulatorOn input. Regards, Imdat
Last updated: 2025-11-28

Post by mondinmr on COL.IMap2 and HashTableFactory cause frequent Access Violation ^{CODESYS Forge talk (Post)}
Good morning, I’ve been using the Collection library for a long time, mostly with Stack, LinkedList, and List. From your examples I was able to manage the different factories, even for custom elements. Now I need a hashtable, but with this object I’m running into a lot of random access violations. If I append something inside FB_Init after constructing the hashtable, it crashes, even though the list was already created. If I only create the hashtable in FB_Init and append afterwards, it usually works. I don’t understand the meaning of the dispose call in this code: pSlave := ADR(slave); uSlave := TO_ULINT(pSlave); iKey := fKey.Create(uSlave); IF hash.CountKeys() = 0 THEN Service.logger.appendLog('Filling hashtable', 'HashManager', AdvLogType.AdvDebugMsg); ok := FALSE; ELSE eError := hash.ContainsKey(iKey, xResult => ok); END_IF IF NOT ok THEN pI := __NEW(UINT); iVal := fKey.Create(TO_ULINT(pI)); Service.logger.appendLog(CONCAT('New slave', TO_STRING(uSlave)), 'HashManager', AdvLogType.AdvDebugMsg); hash.AddKeyValuePair(iKey, iVal); appendNewSlave := pI; ELSE eError := hash.GetElementByKey(iKey, itfValue => iElem); xResult := __QUERYINTERFACE(iKey, itfIInstance); IF xResult THEN itfIInstance.Dispose(); END_IF IF eError <> COL.COLLECTION_ERROR.NO_ERROR THEN Service.logger.appendLog(CONCAT('ERROR ', TO_STRING(eError)), 'HashManager', AdvLogType.AdvCriticalMsg); appendNewSlave := nullptr; RETURN; END_IF __QUERYINTERFACE(iElem, iVal); {warning disable C0033} pI := TO___UXINT(iVal.UlintValue); {warning restore C0033} appendNewSlave := pI; END_IF Without the dispose call, every second cold reset crashes immediately when I try to access iVal, even if eError doesn’t report any error. With the dispose call, the cold reset issue disappears, but I get other problems: a) If I start the runtime using systemctl start codesyscontrol, it crashes at IF hash.CountKeys() = 0 THEN b) If I delete the files in PlcLogic and download again, it works and survives multiple cold resets. But as soon as I run systemctl restart codesyscontrol, everything gets corrupted again and it starts crashing at that point. FUNCTION_BLOCK SlaveMapCounter VAR hash : COL.IMap2; eError : COL.COLLECTION_ERROR; END_VAR In its FB_Init I create it: METHOD FB_Init: BOOL VAR_INPUT bInitRetains: BOOL; // TRUE: retain variables are initialized (reset warm / reset cold) bInCopyCode: BOOL; // TRUE: the instance will be copied to the copy code afterward (online change) END_VAR VAR hF : COL.HashTableFactory; END_VAR hash := hF.Create(256); In another FB I instantiate it statically: FUNCTION_BLOCK ABSTRACT AbstractServoEthercatController EXTENDS AbstractServoController VAR_STAT hashSlaves : SlaveMapCounter; END_VAR VAR field : REFERENCE TO ADVAbstractFieldUnitEthercatCia402; initCnt : REFERENCE TO UINT; END_VAR The append method is the one shown above, and I call it after the runtime has started. The accesses are performed by a single task, and in any case I’m working on an isolated single core. I’ve tried everything, moving the create, the instances, and all the rest several times, but nothing seems to work. I’d like to point out that these FBs are part of our own library, which is used in many applications.
Last updated: 2025-09-11

Post by matthew on Persistence Manager Backup ^{CODESYS Forge talk (Post)}
Hi, Is there a process to restore Persistence Manager files? I have backups of persistence variables used in a machine that is currently operating and tuned and all set points adjusted. There are about 500 persistence variables, they are building another identical machine. I would like to use Persistence Manager files from the first machine in the second also. I have tried copying the files and replacing them on the new RPI but then the Persistence Manager gets errors and then they are all reset to 0 etc I have tried adjusting the times to match. Instead of replacing whole file, I tried just changing the contents inside the file, but still does not work. I may be missing something here, but surely there must be a way to load a backup. Thanks!
Last updated: 2023-10-18

Post by gurke258 on Codesys Safety EtherCAT with Beckhoff ^{CODESYS Forge talk (Post)}
Hello :) We are currently configuring a system with Codesys as SoftPLC on a Linux system and with Beckhoff terminals. I have already gained some experience with Codesys and also with TwinCat incl. TwinCAT Safety. What is new to me now is Codesys in conjunction with Beckhoff safety terminals. We are currently using an EL1918 & EL2904 here. I have been able to integrate both terminals into my project, but I don't know how to interconnect them so that they communicate. That's a bit easier with Twincat ^^ Can any of you help me? I would also prefer a Codesys EtherCAT Safety training or webinar if anyone knows of one. Unfortunately I can't find such an event on the internet.
Last updated: 2023-11-07

Post by bahrt on Mapping GPIO and adding GPIO configurations ^{CODESYS Forge talk (Post)}
Hi I am about to configure ALL GPIOs on a Raspberry Pi 3 model B V1.2. It seems that I have limited understanding of why not all the IO’s become available with the corresponding mapped IO’s – the 'dwInUse' contains mapping of the inputs from GPIO0 to GPIO27. But 'dwInputs' are only showing GPIO0 to GPIO8 and GPIO15 as available inputs. These mentioned inputs work fine You will be able to watch the limited mapped IO activity here: https://drive.google.com/file/d/1zz4PBNBfRZBF2YkiJ2VQxw6L9MBVji7R/view?usp=sharing Can you please bring your best idea on why GPIO09 to GPIO14 and GPIO16 to GPIO27 state are zero in the dwInputs register? Thanks in advance. Best regards Andreas Bahrt
Last updated: 2023-11-16

Post by bahrt on Raspberry Pi GPIO mapping ^{CODESYS Forge talk (Post)}
Hi I am about to configure ALL GPIOs on a Raspberry Pi 3 model B V1.2. It seems that I have limited understanding of why not all the IO’s become available with the corresponding mapped IO’s – the 'dwInUse' contains mapping of the inputs from GPIO0 to GPIO27. But 'dwInputs' are only showing GPIO0 to GPIO8 and GPIO15 as available inputs. These mentioned inputs work fine You will be able to watch the limited mapped IO activity here: https://drive.google.com/file/d/1zz4PBNBfRZBF2YkiJ2VQxw6L9MBVji7R/view?usp=sharing Can you please bring your best idea on why GPIO09 to GPIO14 and GPIO16 to GPIO27 state are not active (at a fixed zero state) in the dwInputs register? Thanks in advance. Best regards Andreas Bahrt
Last updated: 2023-11-21

Post by lukebouchard on NVL generating ADwin packets instead of UDP? ^{CODESYS Forge talk (Post)}
Using Codesys 3.5 SP11 32bit to program a pair of IFM CR711S controllers. They each have an NVL sender and are set up to receive each others messages. One is transmitting properly but not receiving, the other is receiving the first's messages just fine. When I look at the traffic in wireshark, I can see the one transmitting properly as UDP packets on the subnet and port I had specified. The Second is transmitting on the right subnet and port, but is sending 'ADwin Config' packets. Has anyone run into anything simmilar? From some reading on ADwin from google, nothing is enlightening. Both are set up in the same way, have their own ports and List Identifiers. I have deleted the NVL files and regenerated them, cycled power, and even deleted and remade the NVL's so many times.
Last updated: 2024-08-24

Post by dkugler on Webvisu client connection monitoring ^{CODESYS Forge talk (Post)}
you can give this code snippet a try. It's extracted and simplyfied from my code: Install VisuElemBase lib if not installed yet. Execute in visu task: VAR pClientData : ARRAY [-1..100] OF POINTER TO VisuElemBase.VisuStructClientData; END_VAR VisuElemBase.g_ClientManager.BeginIteration(); pClientData := VisuElemBase.g_ClientManager.GetNextClient(); WHILE pClientData <> 0 DO pClientData[pClientData^.GlobalData.GlobalClientID] := pClientData; END_WHILE You have to make shure every no longer updated pointers in the array have to be deleted and no longer used by your code! Usage of this pointer access at your own risk :-) Works with SP16. From SP17 and newer there will be warnigs etc. using this solution as I remember. It will be great, if Codesys publishes a example or give a hint how to accesse this client values with the VisuUtil lib or other future-proof way!
Last updated: 2024-09-09

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