Post by ragarcia on Error while using Codesys SP19 Patch 4 on Windows 11 ^{CODESYS Forge talk (Post)}
Hello everyone, I just installed Codesys SP19 Patch 4 on Windows 11 and every time I open Codesys I get an error that says (Attached image): 'One or more issues ocurred with the current versio profile. Please contact the vendor to resolve these problems. The plug-in {....} (Exactly 4.15.0.0) is required by the current version profile., but has not been installed. It is highly recommended that the tools is terminated. Do you wanto to terminate now?' I cannot install any package since I get this error everytime I open or try to install any package. Can someone help me please, thanks in advanced
Last updated: 2024-03-26

Post by mwandy on Codesys Project Protection ^{CODESYS Forge talk (Post)}
I'm having trouble finding clear answers on this. I'm looking for a way to make a Codesys project password protected so that if the project is distributed it can be used to log into a controller to view and debug logic. At this same time I want to prevent the project from being saved as well as edits being downloaded to the controller. Basically I want to make a whole project view-only. What is the beat way to achieve this? I have had minor success with access rights, which solves the problem with trying to login if the project doesn't match what is in the controller. However with this solution, edits can still be made and saved, possibly corrupting the core project, preventing future logins. Any suggestions?
Last updated: 2024-03-29

Post by dhumphries on How to determine code size ^{CODESYS Forge talk (Post)}
I'm trying to determine which Codesys Control license I need, the Control Standard S has all the features I think I'll need, but the code size is limited to 3mb, I created a simple program with only 1 line of ladder logic and a simple visualization with a button and an indicator. When I generate code I get some messages, one indicates that the total allocated memory size for code and data is 2.1mb. Is this metric the correct size of the code? I question the size because it exceeds the allowable code size for the Basic S and Basic M licenses and consumes 2/3 of the available memory for the Basic L or Standard S license. What tool can I use to estimate the size of code as it relates to the runtime license limit?
Last updated: 2024-04-05

Post by hafizapik99 on Webvisu not showing Codesys V3.5 SP13 Patch 4 ^{CODESYS Forge talk (Post)}
Hello, I am using a Hitachi Micro EHV+ for a small project, and I wanted to have a Web visu, done with Codesys V3.5 SP13 Patch 2. I test the Visu screen and it works well in Codesys, but I get a blank page when i enter the web visu in a browser. Here is the setting under web visualization: Update rate (ms): 5000 (previously set to 2500 also not working) Default communication size: 100000 (previously set to 50000 also not working) Under Visu_Task tab: Priority: 3 The Visu_Task interval is set to 2500ms (previously set to 200ms also not working) I'm using Google chrome with the latest update, the Javascript is enabled with HTML5. Any advice?
Last updated: 2024-04-06

Post by hafizapik99 on Webvisu not showing Codesys V3.5 SP13 Patch 2. ^{CODESYS Forge talk (Post)}
Hello, I am using a Hitachi Micro EHV+ for a small project, and I wanted to have a Web visu, done with Codesys V3.5 SP13 Patch 2. I test the Visu screen and it works well in Codesys, but I get a blank page when i enter the web visu in a browser. Here is the setting under web visualization: Update rate (ms): 5000 Default communication size: 100000 Under Visu_Task tab: Priority: 3 The Visu_Task interval is set to 2500ms I'm using Google chrome with the latest update, the Javascript is enabled with HTML5. Any advice?
Last updated: 2024-04-06

Post by niallel on Continuous MC_PositionProfile ^{CODESYS Forge talk (Post)}
Hi, Is it possible to have a MC_PositionProfile that runs continuously again and again without stopping the motor and starting again. I have a profile that contains about 50 steps that I want to repeat. At the end of each run the motor comes to a stop before the next one starts. My code checks for Done, then resets the Execute to False before setting Execute to True to run again, and I think this is causing the motor to go to standstill before starting again. There doesn't seem to be a BufferMode option like with MC_MoveAbsolute. Is it possible to do this? Many thanks,
Last updated: 2024-04-11

Post by mbmik on IoDrvModbusTCP_Diag not defined when using MODBUS ^{CODESYS Forge talk (Post)}
Hi Im trying to setup a Weidmüller WL2000 to run with MODBUS, to get some data from a server. Codesys V3.5 SP20. The issue is, that whenever i attach an ethernet port and add MODBUS Master und also a Slave, codesys will compile the project, but there always seem to be some remaining errors, which or only visible, when setting the messages window to "Pre-Compiled". I tried a lot of stuff to get rid of these errors, but cant find to seem the reason. New installation of codesys, cleaned project, setup completely empty new project, manually adding libs. Nothing helps. Any help is apreciated. Maybe we are doing something wrong.. Example Project is available, if somebodey wants to take a look. Greetings and thanks alot
Last updated: 2024-04-15

Post by m83coding on Raspberry Pi Codesys SPI Master ^{CODESYS Forge talk (Post)}
Hello, I am trying to control shift registers 74HC596 and 74HC165 via Raspberry PI with SPI interface. So far I did it with a Microcontroller and now I wanna upgrade my Projekt with Raspberry Pi and Codesys Software to be more flexible. I tried to adapt PiFace Function Block to just send or recive a 8 bit via SPI interface of the my Raspberry Pi. With following code (see attached screenshots) * PLC_PRG * PiFaceDigital * PiFaceDigital.write8 * PiFaceDigital.read8 I have a signal at SCK and MOSI pin of the PI, so far so good. But I really struggle with the unterstanding of the code. Is there some detailed description of each line of code? Or is there somebody in the community who can explain each line of code? Or is there a more simple way to send / recive 8 bit via SPI? Manuel
Last updated: 2024-04-23

Post by fontrap on cmDongle Raspberry Pi issue ^{CODESYS Forge talk (Post)}
Good morning @eschwellinger, After some research I found out that the problem is the preinstalled CodeMeter on Raspberry Pi. As I mentioned the CodeMeter was installed on the Raspberry because I use a license from other vendor that needs the CodeMeter to be installed. The problem is that when I uninstall the CodeMeter from Raspberry I am able to detect the dongle from CODESYS and everything works as it should be but now the other product can not detect its own license. When I reinstall the CodeMeter I am back to the initial problem. Is there a way to overcome this conflict through CODESYS?
Last updated: 2024-04-24

Post by bjarne-pagaard on Codesys v3.5 Sint to byte ^{CODESYS Forge talk (Post)}
Hi A SINT is a short (signed) integer. It is already only 1 byte - so you should have no problem casting it to a byte like so: bMyByte := TO_BYTE(sintMyShortInt); If you have a regular INT you want to put in 2 bytes - there are a lot of ways you can do this. A Union is certainly one of them. You could have a union with 2 memebers: An array of 2 bytes as one member, and an integer value as another member. Another way would be to look at MEMCPY to put the value into your CAN-message. .. or create a function to take your input value as input, and giving you 2 individual bytes as output. This could be handy if you need to change the byte-order. Integer data types: https://help.codesys.com/webapp/_cds_datatype_integer;product=codesys;version=3.5.17.0 -Bjarne
Last updated: 2024-04-24

Post by fpawlak on KNX SL on stock PFC200 firmware ^{CODESYS Forge talk (Post)}
Hi All. Is it possible to use CODESYS KNX SL on stock Wago firmware (Codesys version, not e!Cockpit). I have Wago 750-8212 with firmware 0.4.04.03(26). When I tried to run 'KNX SL' or even 'Device Reader', I have got [FATAL ERROR] Unresolved reference: 'CODEMGETCONTENTBYFIRMCODE3' [FATAL ERROR] Unresolved reference: 'CODEMGETCONTENTBYFIRMCODE2' [FATAL ERROR] Unresolved reference: 'CODEMGETCONTENTBYFIRMCODE2' What probbalby means that there is no running CodeMeter component on PLC. I have checked /etc/codesys3.d/CODESYSControl.cfg [CmpWebServer] WebServerPortNr=58080 [CmpSecureChannel] CertificateHash=86ccf31839a098ee32067179e26600f1bd6b36f8 [CmpUserMgr] AsymmetricAuthKey=a9d38381e75bbf1bbfc8749e97f536f68238a2ce So the question is if I can somehow add Codemeter to stock firmware? Or should I switched to CODDESYS Control for PFC200 SL or application-base runtime licence?
Last updated: 2024-05-23

Post by jaspergain on Non-existing identifiers ^{CODESYS Forge talk (Post)}
Hello, I got a bit of a weird issue going on which is kind of annoying. So recently we switched a lot of Modbus IO to EtherCAT, as we were having issues with stability. All works fine, which is great. But sometimes when I change the program I get errors claiming that identifiers are not defined. Meaning I can't go online. See the picture below. I believe this is because some of these identifiers were used with Modbus, and they weren't properly removed/deleted? A clean all temporary fixes the issue, but it comes back again after a while of changing the code, and building. Any way to fix these non-existing required identifiers, or even find out where they are required? Thanks for the help in advance. Jasper.
Last updated: 2024-05-29

Post by ragarcia on How to change login visualization for other visualization after user logged in ^{CODESYS Forge talk (Post)}
Hello everyone, I have a web visualization on Codesys and to be able to use the web visualization first an user and a password is requested. After the user logged in, I want to automatically change the visualization to the 'Home' visualization but I am not sure how to do this. In the login visualization I basically have a button with the input configuration to execute the action 'Login' after a click. Once the user is logged in, the visualization is still stuck in the login page and I want to automatically change to Home visualization if the user was succesfully logged in. How can I know the number of web visualization clients connected to my PLC? Thanks in advance
Last updated: 2024-06-04

Post by matt-purcell on Which Lib to use, connect to a socket with URL instead of IP address ^{CODESYS Forge talk (Post)}
Hello, I have a new project and I need to connect to a TCP socket using the URL instead of an explicit IP address, myendpoint@mydomain.com Which library is best suited for this? This is for a new enterprise project, the endpoint is a server in a datacenter running some real time application. We have big IP, it will automatically reassign the IP address to the backup server if a crash occurs so an explicit IP won't work for me. I've done this in RS logix, working now to migrate that code over to codesys. Thanks in advance!
Last updated: 2024-06-17

Post by s1mon on Two OneWireMaster on one Raspberry PI 5 ^{CODESYS Forge talk (Post)}
I don't know why the EtherCat fails, but what happens is: First I have only one 1WireMaster running on my Raspberry Pi and EtherCat is running fine. Then I'd like to add a 2nd 1WireMaster. Therefore I enable a 2nd GPIO Pin on the raspberry in the file "/boot/firmware/config.txt". dtoverlay=w1-gpio,gpiopin=4,pullup=0 dtoverlay=w1-gpio,gpiopin=23,pullup=0 To be able to use this 2nd 1WireMaster in Codesys Runtime I Adjust the CODESYScontrol.cfg file and add there: PlaceholderFilePath.2=/sys/devices/w1_bus_master2, $OneWire2$ After a reboot the EtherCat Master is not working any more. I didn't even add a 2nd OneWire Master in Codesys, but still if I do the EtherCat does not work. Do you have an idea why?
Last updated: 2025-10-21

Post by jonasz on Deploy LicenseServer for Linux SL ^{CODESYS Forge talk (Post)}
The machine I'm currently using (Celeron J1900) already has the Kernel RT patch. I checked the performance according to the documentation. After running CyclicTest for 4 cores, the value for each core is around 6-7. I went through the entire process according to the documentation (I envy the TaskMonitor results in the documentation). The documentation states: "CODESYS Virtual Safe Time Provider The CODESYS Virtual Safe Time Provider is a standard interface that the user can use to transfer a second and external time base to the CODESYS Virtual Safe Control. The implementation is done as a client, which must run on another system with an independent time base." How do I implement this? I've been struggling for two weeks now - I'm too old to give up.
Last updated: 2025-11-17

Post by msirotkin on EtherCAT status errors ^{CODESYS Forge talk (Post)}
Hello, I'm trying to understand the reason for the many errors on the EtherCAT master status page. If we set the cycletime to 1ms we see a lot of rxerrors and lostframes, but the send and recive times are quite good (see attachement). And the status of the EtherCAT bus is good (no other errors, all is green, slave has no errors) But when we set 2ms cycletime the lostframe errors are gone, but periodically increses rxerror counter (see attachement). The questions is, what do these errors actually mean and what we can do to get gid of them? Linux RT, imx8, Codesys runtime for ARM 3.5.21.10, Ethercat 4.10 Thanks
Last updated: 2025-11-25

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 aleksahin6824 on SysEthernet error ^{CODESYS Forge talk (Post)}
Good afternoon Please help with localizing the error. Periodically, but on the same time grid, the error SysEthernet: packet could not be sent occurs. PLC and motors from XINJE. PLC — XSA-330L, rev. 1.2, drivers — DC5C2 (rev.5) In the task configurator, all tasks are set to simple numbers (11, 13, 41 ms) for convenience. The jitter for EtherCat and SoftMotion tasks is less than the task cycle (2 ms jitter for a 6 ms task). The power supply is sufficient for both the PLC and the motors. The cables are in good condition. Please suggest where to look for the problem. P.S. The PLC uses proprietary Linux and there is no SSH access.
Last updated: 2026-08-30

Post by aleksahin6824 on SysEthernet error ^{CODESYS Forge talk (Post)}
Good afternoon Please help with localizing the error. Periodically, but on the same time grid, the error SysEthernet: packet could not be sent occurs. PLC and motors from XINJE. PLC — XSA-330L, rev. 1.2, drivers — DC5C2 (rev.5) In the task configurator, all tasks are set to simple numbers (11, 13, 41 ms) for convenience. The jitter for EtherCat and SoftMotion tasks is less than the task cycle (2 ms jitter for a 6 ms task). The power supply is sufficient for both the PLC and the motors. The cables are in good condition. Please suggest where to look for the problem. P.S. The PLC uses proprietary Linux and there is no SSH access.
Last updated: 2026-08-30

Post by sigbjorn-kleppe on How to display only legend description and not variable name ^{CODESYS Forge talk (Post)}
Hello, I have a question regarding the Trend and LegendDisplayer visualization elements. As the provided image suggests, I am trending two variables which show the torque of two motors in terms of % of max load. Below the trend element, is the LegendDisplayer element which correctly displays the name of both trends. But also, it displays the actual variable name in parenthesis, which I do not want. Currently, the name is set by entering a description for each variable in the trend recording settings. But I can't seem to find any option to display only this description. Is it possible to only remove the variable name used in the software? I'm using CODESYS 3.5.21.50. Thanks in advance!
Last updated: 17 hours ago

Post by sigbjorn-kleppe on How to display only legend description and not variable name ^{CODESYS Forge talk (Post)}
Hello, I have a question regarding the Trend and LegendDisplayer visualization elements. As the provided image suggests, I am trending two variables which show the torque of two motors in terms of % of max load. Below the trend element, is the LegendDisplayer element which correctly displays the name of both trends. But also, it displays the actual variable name in parenthesis, which I do not want. Currently, the name is set by entering a description for each variable in the trend recording settings. But I can't seem to find any option to display only this description. Is it possible to only remove the variable name used in the software? I'm using CODESYS 3.5.21.50. Thanks in advance!
Last updated: 17 hours ago

Post by infinitetool on No connection could be made because the target machine actively refused it ^{CODESYS Forge talk (Post)}
Hi! I'm having trouble connecting to a device in Deploy Control SL. I'm able to see the device is available during a scan, and I can ping the device as well, but when I try to connect I get the message "No connection could be made because the target machine actively refused it". I've worked on this for hours including turning off the firewall on the device PC but nothing seems to work. The device is running a fresh install of Windows 11 IoT Enterprise 2024 and the Development System is 3.5.21.50 running on Windows 11. Thank you in advance for any ideas!
Last updated: 2026-03-10

Post by sheberle on No Bootproject possible ^{CODESYS Forge talk (Post)}
Hello Alex, the message is generated by the CODESYS code generator based on the DevDesc settings of the memory areas available for the target. The problem arises when after too many online changes the area is full. Therefore no more boot project can be generated. Short-term remedy as described in the dialog: Clean and fresh download. This way the initial memory size will be "used" again After how many online changes did this error occur? There is no set limit on the number of online changes, but making too many changes could be a risk. br Simon
Last updated: 2026-03-31

Post by pernockham on Images not shown in webvisu ^{CODESYS Forge talk (Post)}
Two issues. Ive been struggling to get the user management the way I want it. I want to protect the device from unauthorized upload/download, but I do not want login requirement on webvisu. The combination that seems to work is to use "runtime device user management" while keeping the visu user management in "legacy mode"? Initially this seemed to work, but now images are not loaded when using direct access, while they are still shown if I access the webpage via Automation server. Im guessing its connected to the authorization changes? Anyone able to help out? Thanks Also, I read that legacy mode should be avoided, is it possible to use "runtime based visu user management" while keeping direct access to the webpage without login. System is a "Control for linux SL, version 4.20.0.0" Per
Last updated: 2026-04-10

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