Search talk: Object reference not set to an instance of an object

 
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Post by ademarvribeiro on Upload program CODESYS Forge talk (Post)
Hello. in my experience, always click "Yes to all" to prevent error when go online. in this way, do you granted the infomation about hardware are the same, and dont lose " PLC configuration" for example.
Last updated: 2024-05-01

Post by guilhermeleao on How to communicate 2 pcs that are using CODESYS CODESYS Forge talk (Post)
I need to connect 2 computers on the same network that are running codesys, so that they can receive and change variable values from each other. This connection must preferably be made using Modbus.
Last updated: 2024-05-06

Post by siscu on Raspberry Pi - Creating own I2C library and use it without device description. CODESYS Forge talk (Post)
Do you think there'd be a way to turn this into a library? How would I2C_master be passed down to POU FBs?
Last updated: 2024-05-15

Post by dkugler on RecipeManCommands.ReloadRecipes CODESYS Forge talk (Post)
Hi William, I struggled in the same way as you at the beginning with the recipe manager. This chapter helped me a lot to understand how it has to be used: https://content.helpme-codesys.com/en/CODESYS%20Recipes/_rec_start_page.html Check out the Methode LoadFromAndWriteRecipe / LoadAndWriteRecipe Good luck! Dave
Last updated: 2024-05-16

Post by dkugler on RecipeManCommands.ReloadRecipes CODESYS Forge talk (Post)
Hi William, I struggled in the same way as you at the beginning with the recipe manager. This chapter helped me a lot to understand how it has to be used: https://content.helpme-codesys.com/en/CODESYS%20Recipes/_rec_start_page.html Check out the Methode LoadFromAndWriteRecipe / LoadAndWriteRecipe Good luck! Dave
Last updated: 2024-05-16

Post by jaspergain on Non-existing identifiers CODESYS Forge talk (Post)
Hi, I'm using SP19 Patch 5, the software is also updated from SP18 Patch 5, I forgot to mention this. I will try a newer patch to see if it fixes the issue. Thanks for your help.
Last updated: 2024-05-30

Post by totorovic on IO-LINK Package - new license model CODESYS Forge talk (Post)
Thank you for your answer. Finally I don't confirm that it used to work before. It seems that the IO-link Package is needed is you want to configure the network, but you don't need it if you use generic IO-link devices.
Last updated: 2024-06-06

Post by paulg on CODESYSControl_User.cfg - link to documentation? CODESYS Forge talk (Post)
Is there somewhere in the Codesys help files that generally details what configuration options are available for this file, and what details it logs regarding the configuration file? Or is that going to differ by libraries being used? Thanks!
Last updated: 2024-06-11

Post by mariacugnier on Bug Device login CODESYS Forge talk (Post)
I'm having the same issue.I think it may be something related to the device adress that changes depending on the network i'm using, but now i don't have access to the one i used while setting my user. Did you find any solution for this?
Last updated: 2024-06-20

Post by mariacugnier on Bug Device login CODESYS Forge talk (Post)
I'm having the same issue.I think it may be something related to the device adress that changes depending on the network i'm using, but now i don't have access to the one i used while setting my user. Did you find any solution for this?
Last updated: 2024-06-20

Post by mariacugnier on Bug Device login CODESYS Forge talk (Post)
I'm having the same issue.I think it may be something related to the device adress that changes depending on the network i'm using, but now i don't have access to the one i used while setting my user. Did you find any solution for this?
Last updated: 2024-06-20

Post by eschwellinger on Cant login to Rpi4 but can see it in codesys communications settings. CODESYS Forge talk (Post)
your device in the device tree is Pi 64 online you have Pi MC (32bit) - update device in the device tree to Pi MC then it will work.
Last updated: 2024-06-23

Post by ahmed-abohelal on SysComRead Timeout Parameter CODESYS Forge talk (Post)
Hello I was facing the same problem i have to increase the timeout since the unit looks like to be in us SysComread(hCom:=hCom,pbyBuffer := ADR(readBuffer[0]),ulSize:=128,ulTimeout:=3000000,pResult:= ADR(readRes));
Last updated: 2025-10-22

Post by vtec35 on search runtime 4.9.0.0 for pi 3 CODESYS Forge talk (Post)
i have update the package 4.13 n the computer and install all update for all package, now impossible to start codesys... when i start to open any project i have a message invalid project...
Last updated: 2025-10-26

Post by davidbo on How to stay in a method until something is finished. CODESYS Forge talk (Post)
You never stay in a method. You need a block to do that. Something like: VAR button:BOOL:=FALSE; count:UINT:=0; END_VAR IF button THEN //read pressure count:=count+1; IF count>1 THEN button:=FALSE; count:=0; END_IF END_IF
Last updated: 2025-11-04

Post by gseidel on SMC_ERROR.SMC_AXIS_NOT_READY_FOR_MOTION when using Drive Virtual CODESYS Forge talk (Post)
Hi ducng, you need to make sure that MC_Power.Status is TRUE before you give a rising edge to MC_MoveRelative.Execute. (This is the same for virtual and real axes). Best regards, Georg
Last updated: 2025-11-27

Post by cnicht on Visu File Transfer with multiple files CODESYS Forge talk (Post)
I have a question for the Visu File Transfer Example. Is it possible to transfer more than one file from the plc to the webvisu with only one button click? How can i realize it?
Last updated: 2025-12-03

Post by cnicht on Visu File Transfer with multiple files CODESYS Forge talk (Post)
I have a question for the Visu File Transfer Example. Is it possible to transfer more than one file from the plc to the webvisu with only one button click? How can i realize it?
Last updated: 2025-12-03

Post by clockben on Python script to add libraries to project CODESYS Forge talk (Post)
Hello, I have the same issue β€” some libraries aren’t resolved. When I load the libraries manually and delete them, reloading with the script works fine afterward. Have you found a solution since then? Many thanks in advance
Last updated: 2025-11-11

Post by eld-t on Change Git local repository folder name CODESYS Forge talk (Post)
Hi, how do you change the Git local repository folder name? It is called "project" by default, so we would like to rename it to something more descriptive especially for the remote repo's sake. Thanks!
Last updated: 2025-12-10

Transparent wireless serial bridge for Modbus RTU – experience with LoRa/WiFi RS-485 link to CODESYS runtime CODESYS Forge talk (Thread)
Transparent wireless serial bridge for Modbus RTU – experience with LoRa/WiFi RS-485 link to CODESYS runtime
Last updated: 2026-03-18

Post by nulltrace on How change Unity-ID in TCP Modbus Slave CODESYS Forge talk (Post)
Hey Husarz. i don't forget you, the Thing is, to give you my answer, i have to wait for Answer from Codesys/E. Schwellinger. i suspect Mr. Schwellinger is on in Vacations that week. so please, be patient at moment
Last updated: 2026-04-10

Post by fleaplc on Modbus TCP Server connection is ESTABLISHED but all holding registers are value 0? CODESYS Forge talk (Post)
Did you check the communication with a sniffer ? (ex. Wireshark) to check if the holding get to zero by a wrong writing (client initialization?) o something else?
Last updated: 2026-01-27

Post by rickmotion on Opening and saving files with fileOpenSave dialog CODESYS Forge talk (Post)
I have a customer that types in machine programs in a text file for machines and lets the machine execute it. In the old situation they can open and edit these files in a winform application. Now I want to move this to codesys. What I need is a simple way to open, close, save, edit the machine file in codesys visualisation. I want to use the fileOpenSave dialog. But don't understand how it works. I have the file transfer example and some other examples. But it is hard to figure out how the part with the file dialog works so that you can select a folder or file. Does someone know how that works?
Last updated: 2025-03-26

Post by rickmotion on Opening and saving files with fileOpenSave dialog CODESYS Forge talk (Post)
I have a customer that types in machine programs in a text file for machines and lets the machine execute it. In the old situation they can open and edit these files in a winform application. Now I want to move this to codesys. What I need is a simple way to open, close, save, edit the machine file in codesys visualisation. I want to use the fileOpenSave dialog. But don't understand how it works. I have the file transfer example and some other examples. But it is hard to figure out how the part with the file dialog works so that you can select a folder or file. Does someone know how that works?
Last updated: 2025-03-26

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