Post by squiggleypuff on Can't Add New Version of Modbus TCP Master
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Bumping for visibility, still unable to get Modbus working on this thing.
Last updated: 2024-04-08
Post by eschwellinger on cmDongle Raspberry Pi issue
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use Arm64 SL or Arm SL instead of the PI package - this will work
Last updated: 2024-04-24
Post by reinier-geers on License problem gateway
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16.4 Epis What has it to do with the manufacture? It just a licence more not. So basicly the idee of codesys sucks. 3s acts like its posible to add a license. And then it depence on the manufacturer. Why ?? Its a computer !! has nothing to do with the manufacturer. Most dont what a basic licence because they have to pay for that. 3s is the problem not the manufacture of the hardware. Its like the licence of the raspberry pi. HMI is not working. Sorry you get a refund. Why suggest that its possible wen its not !!. It cost me a lot of time. Who pays my time. Why do i have to pay for somting thats not working.
Last updated: 2024-04-26
Post by k2saki on CNC / G-Code streaming processing ( to start quickly in long G-Code File )
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Is it possible like G-Code streaming processing (like FANUC or SIEMENS DNC Function )? Or Does anyone know the tips for CODESYS Motion to start moving long Long G-Code File quickly? I have to wait long time after "Start" button to start moving, I have to wait finishing interpreting whole G-Code file, ( and I have to prepare huge buffer to store. ) Now, I'm working on my CNC Project using SMC_ReadNCFile2, and SMC_NcInterpreter to preprocess G-Code. I tried to set SMC_Interpolator.xExecute to true to Start while after SMC_NcInterpreter processed more 50-line of G-Code, but that not worked, I had to wait SMC_NcInterpreter processed all lines to start SMC_Interpolator. G-Code have about 2000 lines of XY of G01 (or more over.. ) of short segment that a CAM software has exploded from NURBS Curve.
Last updated: 2024-05-03
Post by corriibme on Read Serial Number of PLC
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I have recently used this example from @Brine, and it worked. Thanks
Last updated: 2024-05-21
Post by kislov on Signature verification faited fro the following package
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Try to use newer version of CODESYS Installer: https://store.codesys.com/de/codesys-installer.html
Last updated: 2024-06-11
Post by installwhat on C0077 on one machine but not another
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I have a version of codesys 3.5.16 on my local machine and a vm. The local machine has loads of codesys versions and libraries installed etc. I can open the FPosCR_Example_Project_SP16_patch1 project on my vm without any errors. On the local machine I get the error C0077: unknown type IoDrvEthercatLib.ETC_CO_SdoWrite. I can, on the local machine, declare a var of type IoDrvEthercatLib.ETC_CO_SdoWrite and include it in the code without adding an extra error. The problem only seems to affect the library. This is seems more an issue with my codesys set up rather than something with festo. I would like to know the possible causes. I understand most of the library manager features but it's not clear how to find the cause. Thanks
Last updated: 2024-06-11
Post by martinlithlith on Raspberry Pi: List of available drivers / libraries
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hi! this sounds awsome! Sorry for a perhaps stupid question; how do i find you're collection?
Last updated: 2024-06-11
Post by andrew-budaiev on Formatting Integer
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How can I format integer so it would display 001 instead of 1? Is it possible? I couldn't find it in documentation
Last updated: 2024-06-14
Post by paro on Which Lib to use, connect to a socket with URL instead of IP address
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hi, maybe Net Base Services https://forge.codesys.com/prj/codesys-example/nbs/home/Home/
Last updated: 2024-06-17
Post by bruno-roth on Codesys access to DICTIONARY OBJECTS of ethercat (CoE ) Servo Drive
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You could use the FBs ETC_CO_SdoWrite and ETC_CO_SdoRead
Last updated: 2024-06-19
Post by mos89p on Codesys Soft PLC OPC UA server
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Hi did you check the log of OPCUA expert Client?
Last updated: 2024-06-27
Post by eschwellinger on Two OneWireMaster on one Raspberry PI 5
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hm.. could you add the project or at least parts of it?
Last updated: 2025-10-20
Post by imdatatas on Unrecoverable SoftMotion state after switch to PreOp
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Dear @alimans, Additionally, As far as I know since starting from Softmotion V4.18.0.0 automatic restart behaviour for an axis has been changed for this issue. See below explanation from release notes. "With CODESYS SoftMotion 4.18.0.0, the behavior of SoftMotion axes after a loss of communication to the servo drive has changed. Now, an automatic reinitialization is performed as soon as the communication is established again. Before, an explicit call to SMC3_ReinitDrive had to be performed. An example for a loss of communication is that the cable to one of the drives is unplugged." Regards, imdatatas
Last updated: 2025-10-23
Post by fless on No source code available for profinet library
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looks like you are running in a bug in the newest version 4.4.0 of the profinet library or the new library triggers a bug in your code. did you update your profinet device too? you could try to downgrade to an older version of the library. via library manager - placeholders, double click Profinet 4.4.0 in the library column and choose an older version.
Last updated: 2023-08-23
Post by fefefede on Error C0521 - unknow compiler
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Hello, i'm a new user of Codesys and student of ST program for PLC. Since today for a few new projects i have two error code C0521 and i can't solve. I also just try to update device and search library but nothign resolve. How can i fix this? Thanks
Last updated: 2023-09-02
Post by snhatton on Retain memory change to ZERO
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I think more information is needed to help solve the issue. Can you list the exact steps to reproduce the issue? What version of Codesys are you using? Did you add a persistentVars object to your project? I would recommend browsing all instances of the retain variable to see all possible writes to the variable in question.
Last updated: 2023-09-18
Post by snhatton on Alarm Management - latched variable represented as Text list
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Hi There, For my understanding: are you trying to display the contents of a text list in an alarm message based on the id? For example, you could maintain a text list of common alarm messages, and then display based on which message is true?
Last updated: 2023-09-18
Post by tk096 on Motion FB Error
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Hi, Softmotion Robotics does not support tracking in/out to dynamic coordinate systems with relative movements. Is MC_MoveLinearAbsolute an option? See SMC_RELATIVE_MOVEMENT_TRACKING_CS in https://content.helpme-codesys.com/en/libs/SM3_Error/Current/SM3_Error/SMC_ERROR.html Concerning the other error: Do you use any motion function blocks of SM3_Basic to move a single axis of the robot in your application?
Last updated: 2023-10-20
Post by sonnh on How to use more 4 instances of CANopen/Profibus/Modbus with The application-based license CODESYS Control
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The codesys application license allows the use of up to 4 fieldbus instances (eg Modbus). I need to use more instances than that. Can I use the Modbus library instead? Does this usage require a license? Similar to other libraries such as CanOpen, Modbus TCP...
Last updated: 2023-11-02
Post by talhaali on Adding a variable from text list into ST code
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Hi, can I use a entry of a text list as variable in structured text? for example in attach picture, if i use want to use data of first row. I am trying to write: A : STRING := TextList.Default.0; but it is not workings
Last updated: 2023-12-07
Post by talhaali on Adding a variable from text list into ST code
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Hi, can I use a entry of a text list as variable in structured text? for example in attach picture, if i want to use data of first row. I am trying to write: A : STRING := TextList.Default.0; but it is not workings
Last updated: 2023-12-07
Post by tk096 on Some 'pathetic' errors in SoftMotion program
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Hi, I suppose that you are referring to the error code "SMC_FB_WASNT_CALLED_DURING_MOTION"? Starting of Softmotion version 4.15.0.0 the instance path of the function block that has not been called is logged into the device log. This might help you to identify why it has not been called.
Last updated: 2024-07-18
Post by dantheman on Connecting to SoftPLC Only Works By Turning Off Modbus Ethernet Port
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I've also noticed that when I turn off "enp1s0", suddenly the source IP for the ModbusTCP changes to that of "enp2s0", which is what makes sense to me. When I turn it back on, the source IP remains that of "enp2s0".
Last updated: 2024-08-01
Post by tk096 on gear over gear (2 masters,1 slave) - how to do it?
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Hi, you could calculate the position/dynamics of the slave axis yourself and use one of the function blocks SMC_FollowPosition/SMC_FollowSetValues to move the slave axis. https://content.helpme-codesys.com/en/libs/SM3_Basic/Current/SM3_Basic/POUs/Movement/Direct/SMC_FollowPosition.html https://content.helpme-codesys.com/en/libs/SM3_Basic/Current/SM3_Basic/POUs/Movement/Direct/SMC_FollowSetValues.html
Last updated: 2024-08-19
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