Post by wiresplus on Display minutes as hours & minutes ^{CODESYS Forge talk (Post)}
Hello, I have a counter that increments an INT value once per minute I want to display this value in Minutes until 60, then Hours/Minutes thereafter on the HMI Codesys V3.5 SP16 I can divide the minutes by 60 to get hours, but then the minutes is still more than 60. Example: a process has run for 350 Minutes. I need to display "5 Hours 50 Minutes" But if it's only been 45 Minutes, I don't want "0 Hours 45 Minutes" , just "45 Minutes"
Last updated: 2024-05-25

Post by tyronnosaurus on SysLibMem.lib Where To Download? ^{CODESYS Forge talk (Post)}
It should come by default on a normal install of Codesys 2.3, but it's a bit hidden: Like for any other library, go to Resources > library Manager > Right click on list of libraries > Additional library. On the browser that opens, instead of looking in the default folder, use the dropdown menu at the bottom to change the folder (SysLibMem should be on the 3rd folder).
Last updated: 2024-11-11

Post by stuartjr on Disabling forcing of specific variables ^{CODESYS Forge talk (Post)}
I also thought that if I had logic writing a value to this variable, then it would override the force anyway, since I thought that the force request was only applied at the beginning and end of the PLC scan. But this doesn't seem to be the case, the force persists throughout the logic regardless of what I write to the variable with logic
Last updated: 2024-03-15

Post by thieulam on Codesys access to DICTIONARY OBJECTS of ethercat (CoE ) Servo Drive ^{CODESYS Forge talk (Post)}
Hello to all! How can I read or write, via my main code (ST), to the registers present in the DO of my ethercat CoE servo drive? These objects appear in the list of the INITIALIZATION page, and from here I can only access them at startup. How do I access it in run time from my main PLC_PROGRAM?
Last updated: 2024-06-19

Post by pernockham on AC Persistence - values are not read from file during start? ^{CODESYS Forge talk (Post)}
Im struggling with the AC Persistence. AC persistence seems to work for any variable that is changed online and values are kept during reboot. However, if I try to edit the persistence files offline or replace the persistence files with a previously downloaded older persistence file (with modified values), the online value will not follow, as if the system did not at all read the file at boot? My testing sequence. - Edit a the value of a persistenced variable (with xSaveOnChange = True) - Save/download the associated persistence file, (and confirm the value has changed). - Edit the value online for a second time . - Stop runtime - Replace (upload) the persistence file with my previously downloaded file . - Coldstart/Warmstart/Start runtime - Whatever Im trying the value of my persistence variable will always be equal to that of my second edit as if the file is not read/considered during boot. What am I doing wrong?
Last updated: 2025-09-02

Post by timvh on ernesto881124 ^{CODESYS Forge talk (Post)}
You will need a USB to RS485 converter to connect the PC to the Modbus RTU Slave Device. In Windows this converter will be recognized as Serial COM poort (e.g. COM2, or COM3, see the windows device manager to find this out). Select this port in your CODESYS application. On the PC you need to use the CODESYS Control Win (SoftPLC) to run your application. It will not work in simulation mode, because then the Modbus Communication will not be activated.
Last updated: 2023-09-14

Post by bossjosh21 on RevPi Connect RS485 ^{CODESYS Forge talk (Post)}
Hi Sir Kevin. May I know how you came up with this solution. Im a bit confused but I tried to put this. [SysCom] Linux.Devicefile=/dev/ttyRS48 (remember, no 5 at the end!) then set com port in codesys to 6. It also works for me but want to know where did you get this. Thank you.
Last updated: 2023-12-06

Post by bjohnson on Failed to instantiate the frame window error ^{CODESYS Forge talk (Post)}
IT updated a group policy that caused this issue. We resolved by going to Local Group Policy Editor > Local Computer Policy > Computer Configuration > Windows Settings> Security Settings > Local Policies > Security Options. Set "System Cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing" to DISABLED
Last updated: 2025-05-23

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 kevintumibay on Struggling to connect to EK1100 to Raspberry Pi ^{CODESYS Forge talk (Post)}
SUMMARIZED VERSION OF QUESTION: I'm trying to connect a Raspberry Pi running "Codesys Control for Raspberry Pi" to a Beckhoff EK1100, unfortunately, when I try to connect I get the following messages SEE FIRST PICTURE DETAILED VERSION OF QUESTION: Hi everyone, I'm a college student that is super interested in learning about PLCs. I wanted to dive into the subject and decided to follow this great Instructables article: https://www.instructables.com/Programming-Raspberry-Pi-With-CODESYS/ Thank you in advance for your help! My current setup is as follows: 1. I have Codesys Control for Raspberry Pi, version 4.14.0.0, (https://store.codesys.com/en/codesys-control-for-raspberry-pi-sl.html) installed on a Raspberry Pi 3B. 2. I am using my smartphone hotspot to create a network. 3. I have CODESYS 3.5 SP21 (64 bit) installed on my Windows 11 laptop. 4. Both the Raspberry Pi and my laptop are connected to the smartphone hotspot network (I am wirelessly connecting to the Raspberry Pi). Connecting to the Raspberry Pi from CODESYS on my laptop: 1. I launch Codesys Installer -> I install Codesys Control for Raspberry Pi (link to the software). 2. I launch Codesys 3.5 SP21 (64 bit) on my laptop. 3. I go to file --> new project --> standard project --> in the pop-up I select "Codesys Control for Raspberry Pi" and "Structured Text" 4. I click on tools -> Deploy Control SL (on older versions of Codesys you would click on "update Raspberry Pi", I got that information from this video: link) 5. Inside Deploy Control SL --> I go to the "communication" menu and I input the IP address of my Pi, the password, and click on connect. 6. Inside Deploy Control SL --> I go to the "deployment" menu and I install Codesys Control for Raspberry Pi SL and Codesys Edge Gateway for Linux 7. Now I double click on "device" in the left hand tree and put in the IP address of my Raspberry Pi and click on connect --> success! I am able to connect! SEE SECOND PICTURE Powering the EK1100 and connecting it to the Raspberry Pi: 1. I am supplying the EK1100 with 24 V across the + and - pins. 2. I have jumper wires going from the + pin to the 24V pin and from the - pin to the 0V pin. SEE THIRD PICTURE 4. I am pretty confident that the EK1100 is receiving power because the "LED Us 24 V" and "LED Up 24 V" are lighting up. 5. I then run an ethernet cable from the EK1100 to the Raspberry Pi port (the Raspberry Pi is connected to my laptop wirelessly over WiFi). I think this connection should also be good since the LINK/ACT LED lights up. Trying to connect to the EK1100: 1. Back in Codesys I right-click on "Device" in the left tree and then in the pop up I click on "add device". 2. I then click on EtherCAT Master. 3. Next in a terminal window I SSH into the raspberry Pi and run the "ifconfig" command. 4. From there I get the MAC address for eth0 --> in my case: b8:27:eb:29:a9:25 5. Then, back in Codesys I double click on "EtherCAT Master" in the left hand tree. I then paste the MAC address into the "Source Address (MAC)" field. 6. I go to the Beckhoff official website and download the XML files for EtherCAT: https://www.beckhoff.com/en-en/products/i-o/ethercat-terminals/ek1xxx-bk1xx0-ethercat-coupler/ek1100.html? 7. I unzip those files in my computer into some folder that I can remember. 8. Back in Codesys I click on "Tools" --> "Device Repository" --> "Install" --> and then on the "Beckhoff EK11xx.XML" file. 9. In theory the necessary XML file is now installed. 10. THIS IS WHERE I RUN INTO THE PROBLEM: I then click on login --> I right click on EtherCAT_Master and then scan for devices --> and nothing. 11. It just doesn't detect it. On top of this whenever I login I get those orange triangles on the left on my tree. When I check the Log I get the messages at the very first screenshot of this post. SEE FOURTH PICTURE Solutions that I have tried to resolve this problem: 1. I thought it was maybe the .XML file so I installed all the .XML files from the EtherCAT folder that I downloaded. That didn't fix it. 2. I went on the Wayback Machine and got the .XML files from 2018 as I thought maybe an older version would work. This file of EtherCAT folders had a .XML file named "Beckhoff EKxxxx.XML" I thought this would work because that's the name of the file the guy in the Instructables used (https://www.instructables.com/Programming-Raspberry-Pi-With-CODESYS/). That didn't do anything. 3. I ran the PLC on my computer instead of the Raspberry Pi and tried to connect to the EK1100, in case the issue was with the Raspberry Pi, but I still ran into the same error from the picture above: "Attention! The device was not found in the repository. Vendorcode: 0x0. Productcode: 0x0. Revision: 0x0". SEE FIFTH PICTURE 4. I reinstalled Codesys, I was originally on version 3.5 SP20 when I did this, I upgraded to 3.5 SP21 with no success. 5. I then thought the solution might be to first add the EK1100 hardware before connecting so I did the following: 6. Right click on "EtherCAT Master" on the left hand tree --> then click on "add device" --> then I added the "EK1100 EtherCAT Coupler (2A E-Bus)" MY THEORY OF WHAT IS CAUSING THE PROBLEM: I asked ChatGPT for help and it said that it might have something to do with the revision number. On the physical EK1100 it says "Rev. Nr.: 0018". I believe that this means that I need to a revision 0018 XML file but if you look in Codesys it says the version is 16 (picture above). This is confusing because I got my .XML file from the official Codesys website so it should be the most up to date version possible. I searched and I searched and I couldn't find a version 18 .XML file, I don't even now if this exists. Any help you can provide is greatly appreciated, I don't know what to do anymore and I really really want to get this working. Thank you!
Last updated: 2025-03-30

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Last updated: 2024-10-26

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Last updated: 2024-10-26

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Last updated: 2024-10-26

Post by denizerm on Deploy Control SL cant find Podman ^{CODESYS Forge talk (Post)}
I found something that might be the main cause for this: /etc/os-release features the ID=debian entry on my reference system; When i temporarily override my DUTs os-release to feature ID=debian or similar its able to detect Podman. Is there a way to fix this behaviour?
Last updated: 2025-10-24

Post by kaotic2499 on Upgraded Raspberry 2b to Raspberry 5, Trends Broken? ^{CODESYS Forge talk (Post)}
There is currently a bug with the Raspberry Pi 64 SL where it is unable to Trend Global Retain or PersistantVars. The work around is to use standard Global Variables for Trend Data. This will be patched by Codesys in the near future reference "VIS-6170"
Last updated: 2025-11-13

Post by artplc on 3.5 P20 hangs - no response ^{CODESYS Forge talk (Post)}
Subject: Solution: CODESYS Freezes Linked to Large Symbol Configuration (OPC UA) Hello everyone, I was experiencing the same problem as many here: CODESYS (v3.5 SP20+) freezing during compilation and download, especially on projects that use OPC UA for SCADA. The only workaround was to run Build > Clean all before every download. I believe I have found the root cause and a permanent solution. The Problem: The issue is directly related to a large Symbol Configuration. In my project, I only need about 700 tags for OPC UA, but the Symbol Configuration list was showing over 250,000 tags. This is because it automatically includes all variables from Global Variable Lists (GVLs) and other memory areas. When any static variable is changed, the IDE tries to rebuild this enormous list, causing it to freeze for several minutes. The Solution: Instead of letting CODESYS export every variable by default, you can use a pragma to tell it which variables or GVLs to exclude from the symbol export process. Place the following pragma at the top of any GVL or data structure that you do not want to be part of the symbol configuration: 1 {attribute 'symbol' := 'none'} 2 VAR_GLOBAL 3 // All variables in this GVL will now be excluded from the 4 // Symbol Configuration by default. 5 InternalVariable1 : INT; 6 InternalVariable2 : BOOL; 7 END_VAR After adding this pragma to all the GVLs that were not needed for OPC UA, the number of tags in my Symbol Configuration dropped to the correct amount. The compilation and download process is now fast again, with no freezing. This method is much more efficient than manually managing the symbol list in the editor. I hope this helps others who are facing this frustrating issue. Best regards.
Last updated: 2025-08-10

Post by i-campbell on Ping By Name ^{CODESYS Forge talk (Post)}
What library is that? Net Base Services Is there a version 9.2 ? I've not heard of a version 9.2
Last updated: 2023-08-25

Post by pietrobalint on Persistent variables are not read after initialization ^{CODESYS Forge talk (Post)}
What do you mean it is part of the licensefree part? I attached my error message.
Last updated: 2024-10-20

Post by jeroenaero on CodeSys Raspberry pi I2C driver not found ^{CODESYS Forge talk (Post)}
I also have a screenshot of the library versions under your library
Last updated: 2024-11-08

Post by mubeta on Profibus DP master with EL6731 and automatic restart of slaves ^{CODESYS Forge talk (Post)}
Not connected, but found using: Scan for Devices
Last updated: 2025-02-03

Post by eschwellinger on Licensing info not available. ^{CODESYS Forge talk (Post)}
you could add the ip of the license server by the deploy tool https://content.helpme-codesys.com/en/CODESYS%20Control/_rtsl_license_controller_linux.html
Last updated: 2025-09-29

Post by nz-dave on MC_HOMING ^{CODESYS Forge talk (Post)}
also get this error in place of the other from time to time.
Last updated: 2025-04-04

Post by thieulam on Codesys access to DICTIONARY OBJECTS of ethercat (CoE ) Servo Drive ^{CODESYS Forge talk (Post)}
ok. tnx! best regards.
Last updated: 2024-06-19

Post by thieulam on Codesys access to DICTIONARY OBJECTS of ethercat (CoE ) Servo Drive ^{CODESYS Forge talk (Post)}
Last updated: 2024-06-19

Post by c3po on SNMP Communication with WAGO 750-8212 PFC ^{CODESYS Forge talk (Post)}
Hello folks, my problem is a bit bigger for just one question. So let's start with the easiest. But first, my system setup: It's a WAGO 750-8212 PFC with some I/O-modules. I try to communicate with the controlsystem over SNMP using the IIoT library from codesys. https://content.helpme-codesys.com/de/CODESYS%20Examples/_ex_iot_snmp_service.html Is there some expirience with this kind of communication? It's just about transfering some data from PFC to network and setting some analogsettings from network to the PFC. So my easiest question: Do I ever need the SNMP_Agent or can I use the SET / GET function as standalone, without the agent? (maybe some more questions will follow, if someone will answer to my request) thanks so far
Last updated: 2024-08-21

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