Post by eschwellinger on OPC Da Server Code Meter Issues after Enabling License ^{CODESYS Forge talk (Post)}
it is mandatory to activate the OPC DA license into the 32-xxxxxx legacy container (not UFC) you need a remove ticket -> contact CODESYS store - my question to move the license
Last updated: 2024-05-03

Post by tcarlbom on Read tag values using external program ^{CODESYS Forge talk (Post)}
This is my first time posting in this forum and I am new to codesys. I am a fullstack developer and I am trying to figure out how the following. What would be the best approach to create a own/custom tag browser? Either directly in codesys ide or using a separate custom program (perhaps a winforms application). 1.a. Shall I parse the .project xml file to get a list of all tags in the project? 1b. Shall I use python scripting in codesys ide to get a list of tags? Once one have selected some tags. These tags shall be exposed to a python program which will be acting as a edge computer. It’s fine to be able to import a file. 2a. I found a library called codesys plchandler which (as I understand) acts a rest api server. Is this correct? If so, can I query the api from a custom python script, ie can query what tags exist in project and or read tag values? My research so far. From earlier projects I know that using opc ua would be perfect for this but from my opinion it’s bloating the plc since it’s resource intensive. So opc ua is not an option. Codesys automation server is neat. But I don’t want to rely on some cloud services and subscription based pricing. There seem to be several interesting codesys libraries like mqtt, tcp server and NVL sender which would help me expose plc tags. But all have a common problem. One have to manually write what tags which will be used in these function blocks. I want a similar experience like “selecting” tags in the opc ua or the codesys tracing, ie a tag browser.
Last updated: 2024-06-28

Post by mm-sceg on Runtime geht sporadisch in Störung -> RaspiPi4 reagiert nicht mehr ^{CODESYS Forge talk (Post)}
Guten Tag, ich hab seit längerem das Problem, dass mein Raspberry Pi4 durch die PLC in Störung geht. Auf dem Raspi läuft eine einfache Software mit OPC UA server, InfluxDB und ein NodeRed-Server. (Und MQTT-Server) Daten werden von der PLC über OPC-UA an NodeRed übergeben. Es kann sein, dass der Raspi 2 Wochen läuft, dann geht die PLC in Stopp. Manchmal nur 2-3 Tage. Ein Neustart über Spannung aus & wieder an schafft Abhilfe. NodeRed wirft extrem viele Fehlermeldungen in kurzer Zeit. Wenn die PLC in Störung ist, kann man sich nicht mal mehr über SSH beim Raspi einloggen. Der Raspi ist aktiv gekühlt und im Normalbetrieb nicht überlastet. Ich hab einige logfiles mit vielen Einträgen die mir nichts sagen, eventuell hat hier jemand eine Idee wie ich dem Problem Herr werden kann :) Der letzte Datenbankeintrag von der SPS war am 11.11.2023 um 5:55:50 Uhr. D.h. danach muss die SPS gestorben sein. Siehe Raspi-Log im Anhang. Das LogFile von Codesys startet leider erst um 11 Uhr, weshalb weiß ich leider nicht. Vielen Dank schonmal
Last updated: 2023-11-11

Post by joosterloh on Anbindung an bestehendes SIMIT Modell ^{CODESYS Forge talk (Post)}
Hey also ich soll mit CodeSys 3.5 ein Modell erstellen, welches ich dann später mit einem bestehenden Modell in Simit anbinden kann. In CodeSys steht das Modell mehr oder weniger und ich wollte jetzt mal ausprobieren, ob ich die beiden Modelle miteinander koppeln kann. Übern einen OPC UA Server hat das auch alles geklappt. Allerdings hängt es jetzt an den globalen Variablen. Wie gehe ich da am besten vor? Soll ich die Variablen in CodeSys anpassen oder gibt es da einen Trick? Vielen Dank schon einmal im Voraus!
Last updated: 2024-07-14

Post by ivanh on kepware minimun privilege ^{CODESYS Forge talk (Post)}
Hello everyone, I’m integrating Codesys with Kepserver using the Kepware driver for Codesys, and I need to configure a user account with the minimum necessary privileges to read and write to the tags on the PLC, without using the internal OPC UA server of Codesys. However, despite not assigning the Modify permission, Kepware still allows writing to the tags. What are the minimum required permissions to ensure that writing is only allowed when necessary, and how can I prevent other permissions from being overridden? Any guidance would be greatly appreciated.
Last updated: 2024-08-12

Post by veneto on OPC UA Client ^{CODESYS Forge talk (Post)}
Ciao damian177, provo a chiederti un'informazione. Sul mio progetto Codesys(ver.3.5 SP17) non è visibile l'oggetto "Data Source Manager". Il PC con il progetto Codesys(client) è collegato via rete TCP ad un PLC Siemens1200(server). Sul PC con Codesys ho installato UAexpert(client) e riesco a vedere le variabili del PLC1200. Riesci ad aiutarmi a capire come mai non è visibile l'oggetto "Data Source Manager"? Molte grazie
Last updated: 2024-09-06

Use MC_Home without enabling the drive for homing method 35 ^{CODESYS Forge talk (Thread)}
Use MC_Home without enabling the drive for homing method 35
Last updated: 2025-09-08

access visualization elements (2.3 method not working) ^{CODESYS Forge talk (Thread)}
access visualization elements (2.3 method not working)
Last updated: 2011-12-15

method GetCurrentVisu and keypad's Max and Min values ^{CODESYS Forge talk (Thread)}
method GetCurrentVisu and keypad's Max and Min values
Last updated: 2010-07-27

How to call a method in ladder ^{CODESYS Forge talk (Thread)}
How to call a method in ladder
Last updated: 2016-06-28

Proper method to configure and open Controller's serial port ^{CODESYS Forge talk (Thread)}
Proper method to configure and open Controller's serial port
Last updated: 2021-07-17

"Database Error in method SetState: Error code = 30402, Action = 1030" ^{CODESYS Forge talk (Thread)}
"Database Error in method SetState: Error code = 30402, Action = 1030"
Last updated: 2023-03-07

Please tell me about the continuous control method ^{CODESYS Forge talk (Thread)}
Please tell me about the continuous control method
Last updated: 2019-04-11

Reference: Fehler in der Hilfe? ("Method Invocation") ^{CODESYS Forge talk (Thread)}
Reference: Fehler in der Hilfe? ("Method Invocation")
Last updated: 2011-09-07

How to Hide Action or Method of FB ^{CODESYS Forge talk (Thread)}
How to Hide Action or Method of FB
Last updated: 2020-02-04

How can I use the "IoDrvEtherCAT.GetStatistics" method ^{CODESYS Forge talk (Thread)}
How can I use the "IoDrvEtherCAT.GetStatistics" method
Last updated: 2021-12-20

How to stay in a method until something is finished. ^{CODESYS Forge talk (Thread)}
How to stay in a method until something is finished.
Last updated: 2025-11-04

C0138: No matching 'FB_Init' method found for instantiation of VisuClientObjectMgr ^{CODESYS Forge talk (Thread)}
C0138: No matching 'FB_Init' method found for instantiation of VisuClientObjectMgr
Last updated: 2025-12-18

Post by astrum on OPC UA Information Model Error "Dimensions must be empty" ^{CODESYS Forge talk (Post)}
Hello everyone, does anyone know what this error means: Internal Error in code generation for http://opcfoundation.org/UA/DI/: Dimensions must be empty. I use the standard information models from Codesys and haven't even called the Information Model, but my program can't compile. the only thing I did was to insert the Communication Manage.
Last updated: 2025-08-11

Post by davidbo on All the things needed for anonymous login to OPC UA ^{CODESYS Forge talk (Post)}
When you have a deep object structure where not all values are not exposed to OPC UA, the top object will not have a V check mark but be filled fully out. In that case CODESYS do not always registrate changes to inner object. Solution set a V in the checkbox of the top object, build, download. Now you can browse, but all values in the top object will be selected, then you can deselect the ones you don't want, build, download and it works
Last updated: 2025-09-10

Library download server and library update ^{CODESYS Forge talk (Thread)}
Library download server and library update
Last updated: 2021-09-14

RPI is license server down ^{CODESYS Forge talk (Thread)}
RPI is license server down
Last updated: 2023-10-30

Change modbus server parameters from program ^{CODESYS Forge talk (Thread)}
Change modbus server parameters from program
Last updated: 2024-07-16

Change modbus server parameters from program ^{CODESYS Forge talk (Thread)}
Change modbus server parameters from program
Last updated: 2024-07-17

Modbus Server TCP -error code ^{CODESYS Forge talk (Thread)}
Modbus Server TCP -error code
Last updated: 2024-10-21

Sort by relevance or date