Post by esave on Softmotion Axis Controll ^{CODESYS Forge talk (Post)}
Hello everybody I have two of these EtherCat CiA402 stepper driver from Leadshine: https://www.leadshine.com/product-detail/EM3E-556E.html I want to controll them. I already have implemented them in Codesys with Softmotion. I see the position, the velocity and the status word so I can read everything. See picture 1. But when I want to write something like MC_Power or MC_MoveAbsolut with the SM3_Basic library it wont work and with the MC_Reset POU it shows: "SMC_R_DRIVE_DOESNT_ANSWER". See picture 2. Can somebody help me? Thanks a lot esave
Last updated: 2024-05-24

Post by tba123 on Script engine, git checkout, Project Environment ^{CODESYS Forge talk (Post)}
Hi, I clone a git repository with VersionUpdateFlags.SilentMode, works fine But now I want to checkout a specific commit (with branch_copy command). When using the branch_copy command there is no VersionUpdateFlags and I get this annoying "Project Environment" prompt, blocking further execution of my script without user input. I already tried something like system.prompt_answers[???] = PromptResult.Cancel but I don´t know the string I need here.. The goal is to have a script that clones a repository and compiles every tag + create compiled libraries.
Last updated: 2024-06-10

Post by dekelec on Request for IFM ecoPlus21 installation package ^{CODESYS Forge talk (Post)}
Hello, I’m looking for the ecoPlus21 development environment used with early IFM controllers (e.g., CR0020_Q firmware). We have an old project created in ecoPlus21 that cannot be opened in CoDeSys 2.3, and IFM no longer provides this software. If anyone still has the ecoPlus21 installer or knows where it can be downloaded, please let me know. It’s needed only for recovery and migration of an existing project. Thanks in advance,
Last updated: 2025-10-17

Post by mizi on SM_Drive_Virtual ^{CODESYS Forge talk (Post)}
Hi I recently started learning Codesys SoftMotion. At first, I mainly used YouTube videos. I stopped at two videos where the same problem keeps recurring. fbReadPos( Axis := X_Axis, Enable := TRUE, Position => gAxes.lrActualPos); <- axis cannot move I checked the entire code line by line. Zero errors. GPT spits out nonsense, throwing up increasingly worse errors. And when I copy its code, it says the code is wrong and gets stuck in a loop of its own stupidity. Can anyone explain why it doesn't work? Link to the video below: https://www.youtube.com/watch?v=CYa2HvYZgbM&list=PLsEhEcYjG7na0OveU7cqFXBx7ATyGGn0A&index=3
Last updated: 2025-10-21

Post by timvh on OPC UA PubSub SL 1.3 — UADP WriterGroup with assigned PSS.SecurityGroup still publishes plaintext ^{CODESYS Forge talk (Post)}
I never tried this, but maybe you need to create a certificate on the controller for this? See the menu View - Security Screen. Select the device and see if you need to create a certificate. And maybe you also need to accept the certificate of the other device. This can also be done in the security screen. PS, the CODESYS Runtime Control version must be greater than 3.5.21.0.
Last updated: 2026-06-26

Post by rtlman on Scan devices hangs CODESYS ^{CODESYS Forge talk (Post)}
Hello, I have a problem that randomly appeared today. When trying to scan a network adapter in "Deploy Control SL" the whole program hangs and needs to be restarted. I have been running "CODESYS v3.5 SP21 Patch 3" for a while and it has worked without any issues until now. I've tried upgrading to "CODESYS v3.5 SP21 Patch 4" with the same result. I've not made any system settings recently that im aware of which could cause this. Has anybody had similar a issue?
Last updated: 2025-12-12

Post by farren on Codesys complains about matching versions ^{CODESYS Forge talk (Post)}
I'm building up a 2nd PC to match an existing developer PC. Installed the same SP and Patch levels but when I open a project that was created on the existing PC, Codesys complains that it's not the same version. Attaching a screenshot..... What else is there to match? Also, can all of the libraries that are on the existing machine be copied from it to the new machine and if so, how? (So I get the same versions) Which files/folders do I copy? Thanks! -Farren
Last updated: 2025-12-14

Post by dgross on Alarm Manager History Message Missing ^{CODESYS Forge talk (Post)}
Hi All, I'm using a webvisu on a control Win V3 SoftPLC. My issue is with the Alarm Managers Alarm history. It does create entry's and does also show the latch data. But it only shows the message of the active alarms. In the history the message is empty (also in the .csv Export file). The archiving in the alarm group is checked and the Alarm storage is activated. I'm using the Version V3.5 SP22 Patch 1. Do you have any idea where that comes from?
Last updated: 2026-04-20

Post by fleaplc on CPU + EtherCAT redundancy ^{CODESYS Forge talk (Post)}
Hi all, for a new project I'm looking for a redundant controller with EtherCAT fieldbus I/O. Actually I'm using Beckhoff and it works great! but there's not a solid redundancy yet... Does someone get experience for industrial application (not raspberry) for a redundant Codesys system? If yes please share some info (CPU / OS type, bus, number of managed I/O,... and especially feeling feedback (stability, bugs, performance)... Every suggestion is kindly appreciated!! Fabrizio
Last updated: 2026-01-27

Post by aapostolidis on _NEW when used with classes and interfaces. Interface shows "Hidden Instance" in watch. ^{CODESYS Forge talk (Post)}
Hello, im using dynamic memory allocation with the NEW()-operator. When i instanciate a class with the NEW()-operator and want to debug/watch the interface of the class, the watch is only showing "Hidden Instance" (See attached screenshot). Is there any possibility to debug the interface data ? The interface is working properly but the debugging by the watch is not possible, what is a big disadvantage. Thank you. Best Regards, Alexander
Last updated: 2026-03-24

Post by reinier-geers on draw 1000 nails the easy way ^{CODESYS Forge talk (Post)}
Because codesys dont has a draw command like Circle in Qbasic ( 20 years ago ) i want to draw 1000 nails, and then move them in the screen when they needed. I dont know if codesys can handle this. But is ther an easy way to draw 1000 nails with every single one has a pointer for movement, color and invisable. Of is there a linux command to draw a circle so i can do it with a process command
Last updated: 2026-05-06

Post by struccc on Inheritence of struct, ^{CODESYS Forge talk (Post)}
Strangely reminds me to my struggles... Want to do something "Elegant", reusable, universal, practical... In CODESYS??? 🙃 First of all, before you get too deep into this: If you could find a way, to make a "universal" log entry object, containing the variable length data itself, you wouldn't be able to store them in an array, or access them like an array, or pass them by value as a type. (please correct me, if I'm wrong, incorrect, or not precise). Because... Basically you can't declare a type with variable memory footprint. This is a very deeply embedded characteristic of CODESYS, and all IEC 61131-3 systems, and it has many reasons behind. And yes, it is a very common trap / mistake, to forget about. So, with a log entry - I guess - it's pretty much the purpose: store data and metadata together, and then handle it in a uniform way. There are ways to handle this, really depends on what is the purpose. For example: 1. Entries with fixed length (Maybe it is not as evil as it looks for the first time. Depends on the situation, but definitely the fastest and easiest code) You can have your base object, with an internal, fixed length string or byte array variable. I would go with a string, and call it _Data.; And then you can make properties, like As_Bool, As_Int, As_Real... In the 'set' accessors, you can do like: pReal := ADR(_Data); // POINTER TO REAL As_Real := pReal^; In the 'get' accessors, evidently: pReal := ADR(_Data); // POINTER TO REAL pReal^ := AS_Real; Or, can use ANY type, if you are not obsessed with variable / property like access: 2. Fixed length, but nicer First, some disadvantage to any values: - You can only assign values with write access. No literals, constants, etc... - Can only be used as input variable of function or function_block - Therefore, stg you could reach: LogEntry.Initialize (stVariable|rVariable|iVariable|xVariable); Just a quick example (it's funny to play with ANY): Be careful it was not tested. I'm sure can be done better, please feel free to comment FUNCTION_BLOCK FB_LogEntry VAR_INPUT MsgClass : UDINT; // Like DEBUG, WARN, ERR... MsgCode : UDINT; // Like Errors.ERR_FAILED MsgTS : DT; // The timestamp END_VAR VAR _Data : STRING(80); // Our data container... _Descr : __SYSTEM.AnyType; // A standard descriptor for our data, containing TYPE_CLASS, address and size END_VAR METHOD SET_Value : BOOL VAR_INPUT anyValue : ANY; END_VAR VAR I : DINT; diSize : DINT; pStr : POINTER TO STRING; END_VAR // Check what did we receive in anyValue. diSize := anyValue.diSize; // We use constant __SYSTEM.TYPE_CLASS to identify the received data type CASE anyValue.TypeClass OF // Maybe we don't want to store references, pointers... and who knows what else... __SYSTEM.TYPE_CLASS.TYPE_REFERENCE, __SYSTEM.TYPE_CLASS.TYPE_POINTER : SET_Value := FALSE; // For the planned types we will be just fine. TYPE_CLASS.TYPE_BOOL, TYPE_CLASS.TYPE_INT, TYPE_CLASS.TYPE_REAL : SET_Value := TRUE; // Optionally string can be handled separately, maybe we have received STRING(255), but practically it is shorter than 80 bytes... TYPE_CLASS.TYPE_STRING : pStr := anyValue.pValue; diSize := MIN(anyValue.diSize, LEN(pStr^) + 1); // Get the actual size, and rewrite the received structure member diSize := MIN(SIZEOF(_Data), diSize); // Can chop down the received string to our length... SET_Value := TRUE; // Maybe want to play a little bit more here, to narrow down or convert datatypes, etc... // Or just reject any other datatype ELSE SET_Value := FALSE; RETURN; END_CASE // Fail, if the received value is still larger than our container... IF diSize > SIZEOF(_Data) THEN SET_Value := FALSE; END_IF // Here we should be ok, just set up the _DataType structure, and copy store the data IF SET_Value THEN THIS^._Descr.TypeClass := anyValue.TypeClass; // The typeclass is already filtered THIS^._Descr.diSize := diSize; // Set the (adjusted) size THIS^._Descr.pValue := ADR(_Data); // This will not change, just to be sure {IF defined (pou:SysMem.SysMemCpy)} SysMem.SysMemCpy(_DataType.pValue, anyValue.pValue, TO_UDINT(anyValue.diSize)); {ELSE} // An ugly replacement MemCpy FOR I:=0 TO diSize - 1 DO _Descr.pValue[I] := anyValue.pValue[i]; END_FOR {END_IF} // Otherwise, in case of failure maybe better set an empty value (overwrite the former data descriptor) ELSE THIS^._Descr.TypeClass := TYPE_CLASS.TYPE_NONE; THIS^._Descr.pValue := ADR(_Data); THIS^._Descr.diSize := 0; END_IF METHOD GET_Value : BOOL VAR_INPUT anyValue : ANY; END_VAR VAR I : DINT; END_VAR // We just have to serve the data, using the __System.AnyType structure received // Roughly we can say: IF anyValue.TypeClass = _Descr.TypeClass AND anyValue.pValue <> 0 // This should not be possible, already taken care of by Codesys (?) THEN {IF defined (pou:SysMem.SysMemCpy)} SysMem.SysMemCpy(anyValue.pValue, _DataType.pValue, TO_UDINT(MIN(anyValue.diSize, _Descr.diSize))); {ELSE} // An ugly replacement MemCpy FOR I:=0 TO MIN(anyValue.diSize -1, _Descr.diSize - 1) DO anyValue.pValue[I] := _Descr.pValue[I]; END_FOR {END_IF} // Just to make sure, that our string is terminated... IF anyValue.TypeClass = TYPE_CLASS.TYPE_STRING THEN anyValue.pValue[anyValue.diSize -1] := 0; END_IF GET_Value := TRUE; RETURN; END_IF // ... But can play more CASE anyValue.TypeClass OF TYPE_CLASS.TYPE_WSTRING : ; // Could do conversion TYPE_CLASS.TYPE_XSTRING : ; // Wow, I have to figure this out TYPE_CLASS.TYPE_PARAMS : ; // BTW, what is this, how to use? TYPE_CLASS.TYPE_ANYNUM : ; // ... END_CASE Be careful it was not tested. I'm sure can be done better, please feel free to comment 3. If you really want to do entries with variable size In a standard environment, it would be similar to the previous, except you dont have the container variable _Data, just use a pointer, practically _Descr.pValue At Initialize (SET_Value), you have to allocate the memory, would be easy with SysMem.SysMemAlloc - nowadays with SysMem.SysMemAllocData -, and you make sure to release it after use with SysMem.SysMemFreeData... SysMemAlloc was already hidden. The problem with this, that sooner or later your application will totally fragment the dynamic memory, and fail... So should look for some form of dynMaybe MemUtils.MemoryManager (I am not sure what is the status and the future of it). 4. You will end up by a LogEntry Factory ... 5. You could still have a look at this IEC Snippets BTW, Standard Codesys Logger is not a bad choice either. If you are really interested, I share some more code / library.
Last updated: 2025-03-09

Transparency of element rectangle works only in simulation not in WebVisu ^{CODESYS Forge talk (Thread)}
Transparency of element rectangle works only in simulation not in WebVisu
Last updated: 2023-05-25

What is the best way to upgrade a project to a new version of Codesys? ^{CODESYS Forge talk (Thread)}
What is the best way to upgrade a project to a new version of Codesys?
Last updated: 2022-03-01

I want to use the function of PVT to realize move ^{CODESYS Forge talk (Thread)}
I want to use the function of PVT to realize move
Last updated: 2013-05-14

Which kinds of data is transferred with 'Scan for devices' command? ^{CODESYS Forge talk (Thread)}
Which kinds of data is transferred with 'Scan for devices' command?
Last updated: 2020-12-14

RPI How to login for a copy of the SD image ^{CODESYS Forge talk (Thread)}
RPI How to login for a copy of the SD image
Last updated: 2023-10-18

Find Function: Object reference not set to an instance of an object. ^{CODESYS Forge talk (Thread)}
Find Function: Object reference not set to an instance of an object.
Last updated: 2023-10-30

Can't open online view of FB instance from code editor, only from Device/POU windows ^{CODESYS Forge talk (Thread)}
Can't open online view of FB instance from code editor, only from Device/POU windows
Last updated: 2023-11-08

Post by tk096 on Axis_Ref_SM3.perfTimers ^{CODESYS Forge talk (Post)}
Hi, these variables are internal members of the axis. They measure the duration of some internal function calls.
Last updated: 2023-11-23

C0244: No VAR_PERSISTENT list is part of the application to enter instance path for variable ^{CODESYS Forge talk (Thread)}
C0244: No VAR_PERSISTENT list is part of the application to enter instance path for variable
Last updated: 2024-07-17

Mimic behavior of the visualization button element with a custom button ^{CODESYS Forge talk (Thread)}
Mimic behavior of the visualization button element with a custom button
Last updated: 2024-08-04

how to extract the name of an FB to a variable ^{CODESYS Forge talk (Thread)}
how to extract the name of an FB to a variable
Last updated: 2024-10-01

Get $100 EVERY TIME USE THIS COUPON CODE OF ACU934948 TEMU ^{CODESYS Forge talk (Thread)}
Get $100 EVERY TIME USE THIS COUPON CODE OF ACU934948 TEMU
Last updated: 2024-10-26

Temu Discount Code Republic of Korea ➔ ["^"acq615756"^"] for First order (Free Credit $750) ^{CODESYS Forge talk (Thread)}
Temu Discount Code Republic of Korea ➔ ["^"acq615756"^"] for First order (Free Credit $750)
Last updated: 2024-10-26

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