Post by s1mon on Two OneWireMaster on one Raspberry PI 5 ^{CODESYS Forge talk (Post)}
If I add "PlaceholderFilePath.2=/sys/devices/w1_bus_master2, $OneWire2$" to the CODESYScontrol.cfg I can use a 2nd OneWireMaster in the Codesys Runtime. But then my EtherCAT_Master is not working any more. Any Idea? Is there any instruction or documentation how a 2nd OneWire Bus Master can be used within Codesys Runtime on a raspberry pi 5?
Last updated: 2025-10-18

Post by davidbo on Toradex and CODESYS and licensing ^{CODESYS Forge talk (Post)}
I am evaluating a Toradex product for use with CODESYS. Toradex and CODESYS are partners, but using "CODESYS Virtual Control for Linux ARM64 SL" together with a carrier board "Verdin mallow" However it doesn't seem to be a soft container for licenses. So how do I install a license
Last updated: 2025-10-20

Post by struccc on Wish: CODESYSControl.cfg - again ^{CODESYS Forge talk (Post)}
Before creating this topic, I was browsing the search results for CodesysControl.cfg - many results, and I remember very well, it's a problematic issue for a long time. To summarize: there were many requests for documentation on this file - the most comprehensive reply is: https://forge.codesys.com/forge/talk/Runtime/thread/ebbf851a3d/#eb85 Hi, not really, this is covered by the manual which you get if you use a runtime toolkit which is not free of charge. Maybe we need to extract the config file part from that documentation if that is possible. BR Edwin I am not sure how much is this relevant, since we buy SL License directly from CODESYS... I think it is a reasonable demand, to get documentation on the configuration entries affecting the documented behaviour of the runtime system and it's components The actual reason I bring up this issue again can be read here: https://forge.codesys.com/forge/talk/Runtime/thread/febad3cc40/#0e12 but mostly my frustration about noticing some new, unknown and undocumented entries in my configuration file. Again. And this happens a lot recently. Just some examples: Changes with SysFile - and mandatory use of IEC path Introduction of Mandatory user management File transfer service now disabled by default SysProcess - allowed commands The above mentioned CmpApp parameters... And finally (Regaridng windows install): With the newer versions, the installation directory (together with the configuration file) tends to hide itself to some super silly location under the roaming profile data of local system account. I am not sure if this change was documented somewhere, but was a very unpleasant one. Someone could please explain the reason and the concept of the introduction of this release specific directories (I am sure, there is a good reason) - how to use them properly? - How to re-introduce user configuration (to preserve configuration data between versions)? - How to do version - to version migrations properly? - How to keep old version of runtime available and ready to start with it's original configuration and application? - ... Therefore, the lack a regularly updated description of CodesysControl .cfg , including all the configuration entries, together with their default values for different runtime versions is really a big deficiency.* This should be done for all components storing or just seeking data from this file... (Maybe there is such thing but I failed to find???) It is regularly causing trouble when introducing a new version (together with the long awaited bug fixes and enhancements), what has changed it's default behaviour for security or other practical reasons. I agree this is very important, and it is logical to change the default options: But it must be documented historically, and make it easily available, so we can prepare better for the upgrade of the runtime. Forge talk is a great source, but not very practical for this kind of documentation purposes... Thanks in advance for CODESYS staff 🙏🙏🙏 (Ps.: It would look rather silly, if some members of the user community prepares this documentation on a Forge Wiki page... Or??? Should we?)
Last updated: 2024-11-21

Post by alez on CANopen safety , SRDO error behavior ^{CODESYS Forge talk (Post)}
I have a project in which there is a Safety device in CANopen, and the PLC interfaces with it as Master. I would like to understand if it is possible to set the behavior in case one of the SRDOs that I receive from the slave is no longer received. From what I have seen, if the SRDOs are not received, the CANopen safety status becomes "Not in progress" and the mapped variables freeze at the last value detected. I want to understand if it was possible to set the variables connected to the SRDOs to take a default value (e.g. zero) in the event of a CANOpen error during reception.
Last updated: 2024-07-15

Post by pistola on Visualization Size - Set Layout ^{CODESYS Forge talk (Post)}
I feel like this is a setting issue and I can't seem to find the right setting. I have a new project that I'm looking to add visualizations to however when I select my template size (1280 x 800) I make sure in my properties under the visualization tab, I have "Use specified visualization size" selected and my width set at 1280 and height set at 800. Now within my visualization editor I can't see to get the size outside of my template to grey out. I've attached a PDF showing what I'd like the visualization editor to look like and what mine currently looks like. Any help would be greatly appreciated.
Last updated: 2024-11-12

Post by hclai on Maximum Array Index Issue ^{CODESYS Forge talk (Post)}
I was trying to use a table object in visualization. I want to dynamically show the valid rows in the table. However, it does not work when there is 1 row. i put the maximum array index to 1. it does not show the 1st row. when i change to 2, it show the second row only. my project with older visualization profile version is working perfectly fine. I did some test and realized that i must use a Row Selection variable to change from 0 to 1. With this change of Row selection, then the row 1 will show up.
Last updated: 2025-06-19

Post by shooxplc on How to call the same program from library and get the vars updated. ^{CODESYS Forge talk (Post)}
Hi, I am writing to you today because I would like to create a library that would contain a program with its various subprograms, in my example "PLC_PRG" with "a", "aa", "aaa". But once the library is created as shown below: I would like to be able to drag and drop my folder as many times as I want (let's say I manage the same system multiple times). Once the drag and drop is done, we can see the second folder with the variables renamed successfully. As shown below: But my variables in CAD_1 remain the same as for CAD, so it's PLC_PRG instead of PLC_PRG_1, for example. Is there a solution to automate this? I wouldn't want to have to rename all my variables manually, considering that in the program where I want to do this, the number of variables is substantial. Lucas.
Last updated: 2023-08-23

Post by abinvest579 on TCP Client ^{CODESYS Forge talk (Post)}
Hi All, I am using codesys based plc to read and control magna power DC supply over LXI protocol using SCPI command. To connect device required socket programming for that i am using Net base service library function block TCP_Client to establish connection over TCP/IP , TCP_Write to write SCPI commands and TCP_Read to read data from Magna power DC supply. I have attached screenshot for logic developed. I am able to connect and write commands to device but i not receiving any information from device. For writing Commands i also tried various end of line character like \n,<nl>, A, D, 10, 13, 0x0A, 0x0D but not received any status from device. For testing purpose i am using simple command '*IDN?' to read data. Also if tried to check on hercules software what data actually plc read, first it read correct data after that is read wrong data as see in screen shot. 'Hello World' was correct read and after that Codesys in replaced with 'Codesysorld' that is not correct way. Same issue also appeared for send data. Any one have face same issue how i can read data directly from device correctly and send data please suggest solution on this.</nl>
Last updated: 2024-07-01

Post by bmatlove on Re-create CoE online window in Visu ^{CODESYS Forge talk (Post)}
Hello, I am trying to re-create the CoE online window within a Visu for purposes of checking and interacting with device parameters occasionally for maintenance purposes. To minimize reliance on using the IDE for misc interactions. Ideally, I would like to exactly mimic the CoE online window within the IDE. I assume that it uses a few tricks to minimize overhead, such as only polling registers which are within the visual scope, for example. I'm afraid it might be too much to ask for a pre-built drop-in Visu module to exist for this task. Do I have any options aside from manually re-creating all the logic to do this, relying heavily on SdoInfo function blocks? Is there a way for me to reference the device ESI file to shortcut the process of determining how many registers there are and getting the address for each?
Last updated: 11 hours ago

Post by otbeka on CmpCrypto CryptoGenerateHash Not Outputting ^{CODESYS Forge talk (Post)}
Hi, I have been trying to use CryptoGenerateHash from the CmpCrypto Implementation library. My code is taken almost directly from the CryptoDemo.project example provided on Codesys Forge, yet the CryptoGenerateHash function does not write to the address listed in pHash. RTS_IEC_RESULT is OK, but I am getting nothing out of the function. No errors either, all my libraries are up to date. Any help would be appreicated! PROGRAM PLC_PRG VAR sMessage : MESSAGE := 'The red fox runs across the ice'; abyHashCode : HASH_CODE := [ 16#52, 16#ED, 16#87, 16#9E, 16#70, 16#F7, 16#1D, 16#92, 16#6E, 16#B6, 16#95, 16#70, 16#08, 16#E0, 16#3C, 16#E4, 16#CA, 16#69, 16#45, 16#D3 ]; xMessageOK : BOOL; END_VAR xMessageOK := CheckMessage(sMessage, abyHashCode); FUNCTION CheckMessage : BOOL VAR_INPUT sMessage : REFERENCE TO MESSAGE; abyHashCode : REFERENCE TO HASH_CODE; END_VAR VAR _hHASH : RTS_IEC_HANDLE := CryptoGetAlgorithmById(ui32CryptoID:=RtsCryptoID.HASH_SHA1, pResult:=0); Result : RTS_IEC_RESULT; bsMessage : RtsByteString := (ui32MaxLen:=SIZEOF(sMessage), pByData:=ADR(sMessage), ui32Len:=TO_UDINT(LEN(sMessage))); abyNewHashCode : HASH_CODE; bsNewHashCode : RtsByteString := (ui32MaxLen:=SIZEOF(abyNewHashCode), pByData:=ADR(abyNewHashCode)); diCmpResult : DINT; END_VAR Result := CryptoGenerateHash(hAlgo:=_hHASH, pData:=ADR(bsMessage), pHash:=ADR(bsNewHashCode)); diCmpResult := SysMemCmp(pBuffer1:=ADR(abyHashCode), pBuffer2:=ADR(abyNewHashCode), udiCount:=SIZEOF(HASH_CODE)); CheckMessage := diCmpResult = 0;
Last updated: 2024-09-06

Post by ihatemaryfisher on Sorting array of any-sized structure ^{CODESYS Forge talk (Post)}
In my machine's operation, I need to display multiples tables containing arrays of structured variables. The arrays change during operation, and my supervisor has advised me to write a new bubble-sort for each array. I think I can make a function to sort an array of any data type. This was my own project, and I'm a relatively new coder. I want to know the weaknesses in my approach, and a better method, if one exists. As far as I can test, the function accepts an array of a structured variable of any size, and sort it by any VAR in that structure. But it relies heavily on pointers, which I've heard are bad practice? Function call: // SORT BY BYTE-SIZED VAR IF xDoIt[6] THEN FUNBubbleSortSansBuffer( IN_pbySourcePointer := ADR(astArray[1]), // address of first byte in first element of array IN_pbyComparePointer:= ADR(astArray[1].byCompByte), // points to first byte of the comparing variable (variable you sort by) IN_uiStructureSize := SIZEOF(TYPE_STRUCTURE), // size, in bytes, of the structured variable IN_uiCompareSize := SIZEOF(astArray[1].byCompByte), // size, in bytes, of the comparing variable (variable you sort by) diArrayElements := UPPER_BOUND(astArray,1), // number of elements in array IN_xSmallToLarge := xSortOrder // whether to sort by small2large or large2small ); END_IF Function: FUNCTION FUNBubbleSortSansBuffer : BOOL VAR_INPUT IN_pbySourcePointer : POINTER TO BYTE; // points to beginning of array (first byte of first element) IN_pbyComparePointer: POINTER TO BYTE; // points to first byte of the comparing variable (variable you sort by) IN_uiStructureSize : UINT; // size, in bytes, of the structured variable IN_uiCompareSize : UINT; // size, in bytes, of the comparing variable (variable you sort by) diArrayElements : DINT; // number of elements in array IN_xSmallToLarge : BOOL; // whether to sort by small2large or large2small END_VAR VAR j : DINT; // repeat iteration over array until array ends i : DINT; // iterarte over array, swapping when necesary k : DINT; // iterator from 1 to size of structure (stepping 'through' a single element in array) dwSize : DWORD; // internal var for use in MEMUtils.MemCpy(<size>) // FOR SORTING BY BYTE VAR pbySourcePointer : POINTER TO BYTE; pbySourcePointer2 : POINTER TO BYTE; pbyComparePointer : POINTER TO BYTE; pbyComparePointer2 : POINTER TO BYTE; pbyPointerToBuffer : POINTER TO BYTE; // pointer to single byte buffer byBufferByte : BYTE; // single byte buffer END_VAR dwSize := UINT_TO_DWORD(IN_uiStructureSize); // get structure size (number of bytes) pbyPointerToBuffer := ADR(byBufferByte); // assign pointer to address of buffer byte (because MEMUtils.MemCpy requires a pointer input) CASE IN_uiCompareSize OF // depending on the size of the VAR to sort by (current functionality for BYTE and WORD/INT 1: // BYTE (8 BIT) FOR j := 1 TO diArrayElements DO // for number of elements in array FOR i := 1 TO (diArrayElements-1) DO // same thing, but row[i+1] row is included in swap logic pbySourcePointer := IN_pbySourcePointer + dwSize*(i-1); // point at #1 byte in array element[i] pbySourcePointer2 := pbySourcePointer + dwSize; // point at #1 byte in array element[i+1] // NOTE: because of memory locations, each array element is offset from one another by a number of bytes equal to the size of the structure // We can "walk" from array[i] to array[i+1] via steps equal to the size of the structure // e.g., ADR(array[i+1]) == ADR(array[i]) + SIZEOF([array datatype]) pbyComparePointer := IN_pbyComparePointer + dwSize*(i-1); // point to sorting variable in array element[i] pbyComparePointer2 := pbyComparePointer + dwSize; // point to sorting variable in array element[i+1] // using sort order (small -> large/large -> small) IF SEL(IN_xSmallToLarge, (pbyComparePointer2^ > pbyComparePointer^),(pbyComparePointer2^ < pbyComparePointer^)) THEN // This is where it gets tricky. We've identified pointers for the starting bytes of aArray[i] and aArray[i+1] // and we know the size of aArray[i]. We are going to swap individual bytes, one at a time, from aArray[i] and aArray[i+1] // this allows us to use only a single byte var as a buffer or temporary data storage // e.g., consider a structure consisting of a word, a byte, and a string. it is stored like this // |------WORD-------| |--BYTE-| |STRING------...| // astArray[1] == 1000 0100 0010 0001 1100 0011 1010 1010.... etc // astArray[2] == 0001 0010 0100 1000 0011 1100 0101 0101.... etc // performing a single swap (copy into a buffer, etc.) of the first byte of each array element creates this // astArray[1] == 0001 0100 0010 0001 1100 0011 1010 1010.... etc // astArray[2] == 1000 0010 0100 1000 0011 1100 0101 0101.... etc // incrementing the pointer adresses for the swap by 1 and swapping again swaps the next byte in each array element // astArray[1] == 0001 0010 0010 0001 1100 0011 1010 1010.... etc // astArray[2] == 1000 0100 0100 1000 0011 1100 0101 0101.... etc // continuing this from k to SIZEOF(TYPE_STRUCTURE) results in a toally swapped row FOR k := 1 TO IN_uiStructureSize DO // copy single byte[k] of array element 1 to buffer MEMUtils.MemCpy(pbyDest := (pbyPointerToBuffer), pbySrc := (pbySourcePointer+k-1), dwSize := 1); // copy single byte[k] of array element 2 to 1 MEMUtils.MemCpy(pbyDest := pbySourcePointer+k-1, pbySrc := (pbySourcePointer2+k-1), dwSize := 1); // copy buffer to byte[k] array element 2 MEMUtils.MemCpy(pbyDest := (pbySourcePointer2+k-1), pbySrc := pbyPointerToBuffer, dwSize := 1); END_FOR END_IF END_FOR END_FOR
Last updated: 2023-08-17

Post by mikek10 on Error IoDrvEthernetIP: Connection Failure. (16#1) How to solve ^{CODESYS Forge talk (Post)}
Your connection configuration should look something like the attachment. Consuming assembly O->T will be the hex of the assembly you want to reference for output data - I want 102 (DO Data Only) shown in the Wago web page 102 = 16#66. Producing assembly (T->O) is the assembly you require for input data - again shown in the Wago web page - I want 108 (DI Data Only) or 16#6C Then set the number of bytes as per the data in the Wago web page too (both 2 in my case)
Last updated: 2024-07-22

Post by trusty-squire on How to adapt Codesys Control SL to custom board ^{CODESYS Forge talk (Post)}
For general usage, these links might help you out. If you are looking at using I2C interfaces, examples from the Raspberry Pi will probably be useful, even if your board isn't a Raspberry Pi. https://content.helpme-codesys.com/en/CODESYS%20Examples/_ex_rts_serial_com.html https://content.helpme-codesys.com/en/CODESYS%20Examples/_ex_raspberry.html If you're developing your own drivers, I can't help you there, although the link you provided will help. If you drill in deeper, the I2C page for example shows function block and method usage, etc. Good luck!
Last updated: 2024-08-09

Post by garrian on How to write multiple coils (Modbus FC15) ^{CODESYS Forge talk (Post)}
Thanks! As far as I can see, the client can only send words. And on the server side there are an array for each of the functions: bool for coil and discrete, word for holding and input registers. I assume I can use holding register, then use bit mapping on the words instead of coils. But I really want to use the FC15/coils.
Last updated: 2024-11-17

Post by askic on Disable/Enable Supervision ^{CODESYS Forge talk (Post)}
Hello, I have found the following instruction in the online help( https://content.helpme-codesys.com/en/libs/CmpSupervisor/3.5.17.0/SupervisorOperationSetTimeout.html ): Sets a (new) timeout for the given operation Supervision must be disabled to modify the timeout and should be enabled afterwards. However, I don't quite understand how to do this? Where can I disable and later enable Supervision? Is it through Codesys application or device menu? I don't find instructions clear.
Last updated: 2025-01-16

Post by mubeta on Profibus DP master with EL6731 and automatic restart of slaves ^{CODESYS Forge talk (Post)}
The problem is looking for a bug somewhere in CoDeSys in that, when the slave returns, the cyclic data exchange resumes, but the diagnostics do not update and the node continues to resulting off-line. it is not a problem with the PB master, but with its 3S/CoDeSys management. CoDeSys 3.5.19.20 runtime. Any ideas on how to fix it? Thank you.
Last updated: 2025-02-03

Post by imdatatas on Remote to PLC device in City-B from City-A ^{CODESYS Forge talk (Post)}
Hello, In an example scenario like below figure, can the developer in City-A connect to the device in City-B remotely using only "Codesys Automation Server" and "Edge Gateway" with the following structure? If no, what should be done with Automation Server for this remote connection requirement? If yes, how should it be configured for this remote connection requirement? Thank you in advance for your answers. Regards, Imdat
Last updated: 2025-02-04

Post by pistola on How to change font and font color rectangle/or related object ^{CODESYS Forge talk (Post)}
Here is the help sections for visual elements rectangle. https://content.helpme-codesys.com/en/CODESYS%20Visualization/_visu_elem_rectangle.html Under "Font Variable" there is "Color" which is a Dword, you can make a variable that changes colour within your code to the color needed. Note the format for the Dword variable is: colorVariable := 16#TTRRGGBB Where: TT = Transparency 00-FF RE = Red 00-FF GG = Green 00-FF BB = Blue 00-FF https://content.helpme-codesys.com/en/CODESYS%20Visualization/_visu_animate_color.html
Last updated: 2025-03-17

Post by andrej on Creating, using an external Function. ^{CODESYS Forge talk (Post)}
Hello all, could you tell me whether I need an additional license in order for v3x64 to execute the DLL? Is there some manual on how to proceed? Other than the rather generic message loading Component failed Lib_XMATH.dll I have no further hints. Many thanks for your feed back. PS: I tried a similar experiment (i.e. generating a native dll for windows and having it executed by the Python VM this worked without an issue).
Last updated: 2025-05-05

Post by berkdan on SMC_ReadNCFile2 is always busy ^{CODESYS Forge talk (Post)}
Hello, I’m using CODESYS V3.5 SP18. When I try to use SMC_ReadNCFile2 to read the file /PlcLogic/gcode.nc, the function block's bBusy output remains TRUE indefinitely. Can you help me understand what I might be doing wrong? Here is how I’m calling the function block. The value of strFileName is 'gcode.nc'. fbReadFile( bExecute := bExecute, sFileName := strFileName, bAbort := bCycleStop, fDefaultVel := RetainVariables.xSlowVelocity, fDefaultAccel := RetainVariables.xAcc, fDefaultDecel := RetainVariables.xDec, b3DMode := TRUE, bParenthesesAsComments := TRUE, fDefaultVelFF := RetainVariables.xFastVelocity, fDefaultAccelFF := RetainVariables.xAcc, fDefaultDecelFF := RetainVariables.xDec, ErrorID => gCNC.eErrorId, errorPos => gCNC.eErrorPos, ErrorProgramName => gCNC.eErrorProgName, bBusy => bReadFileBusy, sentences => sentencesss ); Thanks in advance for your help.
Last updated: 2025-06-16

Post by attarzade on Servo motor as an slave and AC motor as an Mster ^{CODESYS Forge talk (Post)}
Hello, I would like to control a servo motor via EtherCAT as a slave axis, and have it follow a master axis that is driven by a Control Techniques C200 AC drive (ethercat communication).Could anyone help me with how to achieve this setup? I use codesys version 3.5.20 and crevis Ethercat cards. AC drive is master axis and Servo drive is slave axis Thanks in advance
Last updated: 2025-07-14

Post by timvh on How to change keyboard layout on the virtual keyboard? ^{CODESYS Forge talk (Post)}
Maybe you have the "Devices" tab open(?), but the "templates" are in the POU pool. You can open it from the menu: View - POUs, or if it is already open, select the POUs tab which is normally next to the Devices tab. All objects which are part of a library are in the POU pool, because they should be device independent (at least most of them).
Last updated: 2025-09-18

Post by monteta on Automation without UI ^{CODESYS Forge talk (Post)}
Problem solved, Once the perform_network_scan() is done, y just had to recover the address and using set_gateway_and_address(). Now i'm looking how to deploy all my device's applications on the PLC, I guess it will looks like : for app in allapplication: with online.create_online_application(app) as onlineapp onlinedevice = onlineapp.get_online_device() online.set_default_credentials(x,y) try: onlineapp.login(OnlineChangeOption.Keep, False) except Exception as e: msg = str(e).lower() if "rescan" in msg : print("PLC service might be off") elif "targetdo" in msg: print("Bad credentials") else print(msg) else: onlineapp.create_boot_application()
Last updated: 2025-09-29

Post by toby on SM Drive license error ^{CODESYS Forge talk (Post)}
Hi albert1999 and forest, I hope you are well. I too am wondering if you have found any solutions? Im working with a RPi and a Omron R88D-ETH servo amplifier. The SoftMotion is timing out after 30min without the license, but I cant figure out how to license it, and I seem to have some compatibility issues between my RPi license and any SoftMotion licenses. Did you guys have any luck? Thank you very much for any assistance offered. Toby
Last updated: 2024-01-10

Post by mejak on Raspberry Pi USB HID RFID Reader - read ID in plc program ^{CODESYS Forge talk (Post)}
Hello, I have an RFID reader that is detected as a keyboard. While looking for information, I came across examples using visualization. I would like to read the ID without visualization or external code in python, only in PLC. I found on the forum that you can try reading directly from potru /dev/... https://forge.codesys.com/forge/talk/Runtime/thread/24b3527036/ How to read values directly in codesys? Or maybe there is another solution? Best Regards
Last updated: 2024-01-25

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