Post by uluking on CodeSys2.3 Modbus 64-Bit Double Read Problem ^{CODESYS Forge talk (Post)}
Hi everyone, I would appreciate your help with a problem I've been working on for a few days but haven't been able to resolve. I am reading data from a Siemens PAC3220 energy analyzer using Modbus with Wago-8202. However, the device's energy indices are given as doubles. Since a double variable is 64-bit, it is not possible to read it directly. I have been struggling for days, I have written many conversion functions but I have not been able to get results. I would appreciate your help. I read 4 word variables and processed them. I am converting them according to IEEE-754, but I can't seem to read the correct data. I would appreciate your help.
Last updated: 2025-10-27

Post by peterned on Programatically restart Codesys OPC UA server? ^{CODESYS Forge talk (Post)}
Hi, I'm using a Festo Codesys PLC (CPX-CEC-C1-V3), which is connected to a HMI panel. Both exchange data via OPC UA. Occasionally, the HMI stops displaying data, and looks as if there is no connection. If the HMI stops, the only way to make it work again is to restart the PLC. Restarting HMI has no effect. When the PLC is restarted, HMI starts working normally again. Is it possible to restart the OPC UA server from PLC code? I hope this will make fixing the HMI possible without a PLC restart. Thanks
Last updated: 2024-07-19

Post by alimans on OPC-UA Server, Symbol Set: Raise an error: Object reference not set to an instance of an object. ^{CODESYS Forge talk (Post)}
Hi everyone, I just created a very simple library without any code and, added it to my very simple project. after adding this library, I get an error when I try to open "Symbol Set" in "OPC UA Server" in "Communication Manager". Here is the code of my POU in the library: FUNCTION_BLOCK POU VAR eCommand : (CMD_NONE:=0, CMD_RESET:=-1) INT := CMD_NONE; END_VAR Attached is the error that I get. I also noticed that by removing the enumeration variable above (eCommand), I can open the "Symbol Set" again. Anybody has any idea why this error is raised and how could I use enumeration variables without error in "OPC UA Symbol Set"?
Last updated: 2024-08-08

Post by yannickasselin on codesys VLAN tagging ^{CODESYS Forge talk (Post)}
Hi, I am looking for exactly the same thing. I would think that using a layer 2/3 managed switch should work but I am not convinced. I would like to test it in order to see if it would be possible to run many Codesys Docker instances on a server and run only 1 ethernet cable from the server to a managed switch closer to the machines beeing controlled instead of having to run multiple long ethernet cables. I was going to buy a managed switch in order to test it but I want to first make sure it is possible and I want to figure out exactly what kind of switch I would need. Is this even possible? I think this is a feature that would be very useful paired with "Codesys Virtual Control SL". Thank you
Last updated: 2024-09-07

Post by thn-power on How to change OPC NodeId IdentifierType ^{CODESYS Forge talk (Post)}
Hi Yet another OPC UA question. When setting up a OPC server using "Communcation manager" (Symbol set and information model) in Codesys the NodeId is always given as "opaque" type. At least when browsing using UAExpert. Other standard OPC objects use numeric (or string) identifier, but for some reason my variables seems to get opaque/binary type. See attached photo. How can I change this? I can't see that this is a parameter in the CodesysControl.cfg. Can this be specified in the information model nodeset? And is it possible to specify the exact numeric or string NodeId for each instance? And on a related topic, is there a way to export the OPC server nodeId's with variable name so that it can be imported in a OPC Client? The .xml files in the project folder does not seem to contain the NodeId.
Last updated: 2024-09-20

Post by gediminas on Datasource OPC UA client system failure ^{CODESYS Forge talk (Post)}
I am using CODESYS v3.5 SP20 Patch 3 / Control for BeagleboneBlack SL v4.13 and after some time the OPC UA Server crashes. However, Runtime still works without any issues. The events leading up to the OPC server crash are the most suspicious: 1) Mutex deadlock detected - owner thread died, and 2) Runtime received SIGABRT. And it seems very similar with this topic except used versions - issues should be fixed with previous SP's. I can't seem to find any information about these events. Need some pointers in the right direction on how I can fix this problem.
Last updated: 2024-10-25

Post by joerg-schneider on SVN: "Include externals" Fehlermeldung ^{CODESYS Forge talk (Post)}
Ich habe eine Bibliothek unter Subversion verwaltet und verwende Teile davon in anderen Subversion Projekten mit "Include externals". Wenn man die Bibliothek mit "Copy (Branch/Tag)" kopiert, lässt sich die Kopie nicht mehr mit "Include externals" in anderen Projekten einbinden. Es kommt eine Fehlermeldung, dass ein Pfad nicht gefunden wurde (siehe Anhang). Auch wenn man das Bibliotheksprojekt direkt auf dem SVN Server kopiert (mit Tortoise SVN), kommt die gleiche Fehlermeldung beim Versuch die Kopie mit "Include externals" in anderen Projekten einzubinden. Ich nutze Codesys 3.5.20.60 mit Codesys SVN 4.6.2.0. Wie kann man Projekte auf dem SVN Server so kopieren/verschieben, dass sie später mit "Include externals" in anderen Projekten verwendet werden können?
Last updated: 2025-07-21

Post by pernockham on Gateway in China - "Gateway not connected" ^{CODESYS Forge talk (Post)}
Trying to communicate (from Europe) with/to a unit located in china, the communication seems blocked/stopped. The edge gateway is installed in a linux environment and was possible to link to my Automation server account using the "Automation service tool". However it seems the unit cannot communicate with the Automation server (a Network scan will give the message "Gateway not connected"). (I have tested the eq. setup with units locally which works.) Anyone having experience situation similar to this and if its possible to make this work? Will a VPN be needed possibly? Other tips?
Last updated: 2025-09-04

Post by alexgooi on Licensing info not available. ^{CODESYS Forge talk (Post)}
Dear Forum I have the following config: Codesys_IDE 3.5.20 Codesys_Virtual_Control 4.13 Codesys_License_Server 4.13 I know these are not the newest versions, but in my mind these should work. I have the same problem here. I have the license server installed on the host, and in the docker container(Codesys virtual control) I'm able to ping the license server. In the /conf/codesyscontrol/CODESYSControl_User.cfg I have added the following config: [CmpCodeMeter] EnableNetLicenses=1 LicenseServer.1="ip address of the host" I have tried it via the wbm web-page. I can create new license containers over there, but still no luck. I also have tried to run the docker container with the -s "server_IP" command. I have searched for some tutorial's but I couldn't find it. If anyone has some clue or can give me a push in the right direction it would be very very welcome!
Last updated: 2025-09-29

Post by alexgooi on Licensing info not available. ^{CODESYS Forge talk (Post)}
Thank you for the response, The empty softcontainer does not become visible unfortunately, but I think I can get that back to working. I think I'm misunderstanding something. You are pointing to the Softcontainer number and the ticket code, I thought that I needed to fill in the virtual control containers serial code is this a misunderstanding? And if this is indeed the case, how is the link between the server (softcontainer) and the Codesys control docker container made? If I have multiple Codesys docker containers running on the same docker server, how is the correct license distributed to the correct Codesys runtime container?
Last updated: 2025-10-02

Post by superjojo2002 on Licensing info not available. ^{CODESYS Forge talk (Post)}
If support for a containerized CODESYS runtime with a license isn't feasible, then I've considered an alternative approach: I've purchased and activated a "CODESYS Control Basic S" license on my Windows notebook, where I already have the Codemeter Control Center installed. Upon activation, I can see the CODESYS license as active on my notebook. Subsequently, I followed the instructions provided in this link (https://faq.codesys.com/display/CDSFAQ/How+to%3A+Setup+a+Wibu+Network+Server+Access+for+Licenses) to configure the Wibu runtime in the CODESYS container to access my external license server hosted on my notebook by editing the CODESYSControl_User.cfg file accordingly. However, it's worth noting that I'm still receiving a response from the Licensing Manager indicating that the runtime is persistently searching for a dongle instead of recognizing the soft container. So how can I get my runtime licensed now? Any ideas?
Last updated: 2024-03-20

Post by kronlundo on Licensing info not available (WAGO PFC200 + Codesys V3) ^{CODESYS Forge talk (Post)}
Hi! We're using a WAGO PFC200 for several projects towards the energy sector, and recently upgraded to CODESYS V3. We have the "IEC 60870-5-104 Server" package in a test program, and it works well with the package in DEMO mode. However, when we acquired a license for the "IEC 60870-5-104 Server" package and tried to add the license on the PFC200 through the license manager, we get an error (see attached file). It seems like there is no CmContainer on the device, does anyone have an idea on how to fix this? We've also contacted WAGO on this issue a while back with no feedback yet.
Last updated: 2024-06-10

Post by dantheman on Connecting to SoftPLC Only Works By Turning Off Modbus Ethernet Port ^{CODESYS Forge talk (Post)}
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 davidbo on Modbus: Is there a way to get the channel index from the channel name? ^{CODESYS Forge talk (Post)}
When I use the FUNCTION_BLOCK ModbusChannel I have to sepcify the integer iChannelIndex It can easily go wrong if one has many channels. It would be better if one could use the name. Is that possible? Attached a snippet of the channel name and the channel index to the left.
Last updated: 2024-10-21

Post by lsislsis on SIGABRT Error ^{CODESYS Forge talk (Post)}
After many tests i see that problem comes when serial communication established for modbus rtu. If the slave device not connected we don't see the exception. If the slave device connected at serial port then we have exception about 1 hour after startup and every 10 or 15 minutes. Any suggestion?
Last updated: 2024-11-08

Post by jmauer on Codesys 3.5 SP16 Modbus change port settings. ^{CODESYS Forge talk (Post)}
Hello, I'm coming to you today because I'm trying to make the baudrate and the slave number dynamic. I've tried the "updateComPortSettings" method on the slave device but it doesn't work and gives the "Modbus_COM_Port" an error. Can you tell me how you got this method to work? Thanks in advance for your help jérémy
Last updated: 2024-02-20

Post by thewizard8 on Raspberry PI4 Serial Port ^{CODESYS Forge talk (Post)}
Hi All, I finally figured out how to solve it. The only away that I got it to work was to define parity to None on modbus configuration, and now works like a charm. Just for the record I'm using the GPIO port pins (8,10) and a RS485 to ttl shield that you can find online. Thanks all for the support! Regards Ricardo
Last updated: 2024-03-19

Post by cihangur on Application has invalid license metrics. ^{CODESYS Forge talk (Post)}
Hi, I have a "CODESYS Control Standard L" license and I use Ethercat and Profinet in my project. The project works seamlessly with two fieldbuses. However, when I add modbus_Com (Serial) or 1 OPC Tag to the project, the program throws an exception (Application app=Application has invalid license metrics!). My license should support 10*Modbus and 512 OPC Tags. Why might this problem occur?
Last updated: 2024-03-25

Post by vformanek on Datasource OPC UA Client error ID:7012 ^{CODESYS Forge talk (Post)}
Hey, I am facing the same problem. Basically UA Expert and other programs work fine with the login credentials. But codesys can not use them properly. I can see the server login to it manually but when I download the program and run the datasource never runs... Currently I am facing the same Error ID: 7012 and cant get it running properly.
Last updated: 2023-11-21

Post by stiller on OPC UA RPI 4.8.0.0 Status Code / "out of range" ^{CODESYS Forge talk (Post)}
Hello, I have an OPC-UA server with an information model. For many values, there is a defined range (e.g., 0 to 100). If a client enters a value outside this range (e.g., 120), the StatusCode should change to Bad. How can I accomplish this? Any help is appreciated! Thank you in advance. Best regards, Christian Stiller
Last updated: 2024-07-10

Post by damian177 on OPC UA Client ^{CODESYS Forge talk (Post)}
Hi, Today I ran OPC UA Client Example in 1.1.0.0 version. I opened example visualisation and I tried connected to my OPC UA Server. In first steps looks good but connection was terminate with error OpcUa_BadLicenseLimitsExceeded. I can't test OPC UA Client witohut CODESYS OPC UA Client SL license ? Regards
Last updated: 2024-08-30

Post by dengsberg on Check Connection Status of the OPC-UA Server for Data Source Manager with OPC-UA Client ^{CODESYS Forge talk (Post)}
I am using the Data Source Manager with OPC-UA Client to get data from another CodeSys application in the same Project. How can I check in the PLC_PRG structured text if the connection is ok or not?
Last updated: 2024-09-07

Post by damian177 on Problem with downloading OPC UA tags by Data Source Manager ^{CODESYS Forge talk (Post)}
Unfortunately , Data Source Manager from Codesys has any problem with OPC UA Server delivered with ifix SCADA. Someone can help me add manually any tag from UaExpert to codesys ? How should be was a structure for an example of one tag ? I try like in attachement, but question is , if it a good idea ?
Last updated: 2024-09-08

Post by domebruce on Which database to use? ^{CODESYS Forge talk (Post)}
We have developed a similar application few years ago with .Net and MS Sql Server. The database has about 30 tables, the more bigger tables have 2 or 3 thousands records. We can have multiple threads accessing at the same time to the DB. To garantie the data integrity we need to manage data locks and transactions. Thanks
Last updated: 2025-03-04

Post by chocojun on CODESYS WebSocket Client (IIOT Library) ^{CODESYS Forge talk (Post)}
Has anyone used a library related to websocket client? I will be in charge of websocket client in CODESYS, and websocket server in python. In CODESYS, I will use WebSocketClient(FB) WebSocketRead(FB) WebSocketWrite(FB) to configure the client, Does anyone know an example of how to use it? Please help me.
Last updated: 2025-03-31

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