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

 
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Is there a way to assign NaN (i.e., Not a Number) CODESYS Forge talk (Thread)
Is there a way to assign NaN (i.e., Not a Number)
Last updated: 2019-08-15

The "Cartesian XY chart" objects do not seem to be managed independently on each connected client. CODESYS Forge talk (Thread)
The "Cartesian XY chart" objects do not seem to be managed independently on each connected client.
Last updated: 2023-04-19

Disable SIL2 warning 'Safe POU call to non safe library function is not allowed' CODESYS Forge talk (Thread)
Disable SIL2 warning 'Safe POU call to non safe library function is not allowed'
Last updated: 2019-03-28

you are currently not authorized to perform this operation on the device CODESYS Forge talk (Thread)
you are currently not authorized to perform this operation on the device
Last updated: 2023-06-07

How not to send both ‘Sync Messages’ and ‘SDO Messages’ CODESYS Forge talk (Thread)
How not to send both ‘Sync Messages’ and ‘SDO Messages’
Last updated: 2023-06-30

safeguarded description file for device [...] could not be generated due to error #21 CODESYS Forge talk (Thread)
safeguarded description file for device [...] could not be generated due to error #21
Last updated: 2023-07-18

CAN API Listen Only mode - Do not send any acknowledge to any CAN messages CODESYS Forge talk (Thread)
CAN API Listen Only mode - Do not send any acknowledge to any CAN messages
Last updated: 2022-02-14

Gigabit PCI Express is not supportedd. Can I use USB 3 to Ethernet adapter? CODESYS Forge talk (Thread)
Gigabit PCI Express is not supportedd. Can I use USB 3 to Ethernet adapter?
Last updated: 2018-02-06

Wago plc not going back to RUN Mode after Power failure CODESYS Forge talk (Thread)
Wago plc not going back to RUN Mode after Power failure
Last updated: 2023-12-15

SysFileOpen does not work after update to V3.5 SP19 Patch 5 CODESYS Forge talk (Thread)
SysFileOpen does not work after update to V3.5 SP19 Patch 5
Last updated: 2024-02-19

Not able to see input data coming from eip adapter on codesys CODESYS Forge talk (Thread)
Not able to see input data coming from eip adapter on codesys
Last updated: 2024-03-07

New Ladder Diagram conversion does not work due to missing features CODESYS Forge talk (Thread)
New Ladder Diagram conversion does not work due to missing features
Last updated: 2024-05-14

Post by wbj0t on connect IDE to plc that uses modem ppp CODESYS Forge talk (Post)
Hello everyone! I have an PLC device that uses modem ppp connection to the internet with white IP. Device PPP connection with modem operator established, so I can connect to this device via SSH also within Codesys IDE (check version, info, etc...) BUT, I cant establish connection to this device in the device gateway options for application upload and debugging. How can I do this? Im trying set my device remote IP and port 11740, but, as I understand, it is wrong decision, because the next logic in this connection: local W10 service (Codesys Gateway) listen on 1217, then (some how) this service scanning local networks for seeking any local IP which listening on port 11740, and then connects and writes there. OR IM WRONG?:) W10 tool 'Test-NetConnection' with parameters 'ip -Port 11740' succeeded with True. Need some help, please :)
Last updated: 2024-05-21

Post by alexgooi on Is it possible in the log to see previous shutdown CODESYS Forge talk (Post)
Hi DavidBo, In general Codesys is used to control equipment and an exception is the worst thing that can happen in your installation. If you cannot prevent the exception from triggering, you could implement a Try catch statement, with this solution your controller keeps on running and you are able to handle the exception. __TRY //This statement will trigger an exception Result := 4/0; __CATCH(exc) //Handle the exception HandleException(exc, strExceptionText => strExceptionText); // From the Codesys help file //Create a log file //-------------------------------------------------------- __ENDTRY What you also could do is implement implicit checks, these functions cover most of the exceptions (like dividing by zero) See picture But in general avoid a complete controller shutdown!
Last updated: 2024-02-09

Post by askic on Generate FBs from source CODESYS Forge talk (Post)
Hello, I'm coming from Siemens (TIA) world and currently learning Codesys. I'd like to know if there is an option to add external txt file with ST code for creation of a function block and then use this file as a source file from which FB will be generated? For example, in TIA, there is an option add external source file to the project structure and then use option "Generate blocks from source". This would create a FB. Does Codesys have something similar? This external source file would look like this: FUNCTION_BLOCK Scaling VAR_INPUT x, k, n : REAL; END_VAR VAR_OUTPUT y : REAL; END_VAR VAR END_VAR y := k*x+n; END_FUNCTION_BLOCK
Last updated: 2024-07-31

Post by nano on Map in Codesys CODESYS Forge talk (Post)
There are several versions, u can use an recipt, shm, perstance variables, persistsnce manager. all these ways has some pro's and con's and some of them depending on preparation of the controller byself. others depending on your functionalies and dependencies on project. for all of these ways, you can find the informations on the onlinehelp or from controller-oem
Last updated: 2024-04-04

Post by timvh on Array to String CODESYS Forge talk (Post)
The new (UTF8) string library is faster and can handle large strings. https://content.helpme-codesys.com/en/CODESYS%20String%20Libraries/_strlib_start_page.html PS, in CODESYS, the maximum string length is not 255 characters. The String functions of the standard library are limited to strings of 255 characters. But you can use other (memory) functions to handle strings larger than 255 characters.
Last updated: 2024-07-22

Post by ofey on two different OPC clients with different privileges CODESYS Forge talk (Post)
Hi! I have usually only connected one OPC client (our system) to an OPC server created in the codesys environment on a PLC. This OPC client has a lot of write privileges. A customer also want OPC access, but I want to restrict his access to only read certain values. Do you know if this is possible inside the single codesys runtime running on a controller?
Last updated: 2024-02-01

Post by nmcc on Toggling Visualizations using HMI Physical Buttons CODESYS Forge talk (Post)
Hey thank you for the reply dkugler. I am sorry if this seems like a stupid question. I have the use current visuvariable checkbox enabled. I can see the string names of all my visualizations. I am trying to use ladder logic to be the anser to the button press using "VisuElems.CurrentVisu := 'MainScreen';. This returns an error. Any idea what I am doing wrong or could you point me in the right direction for fixing this. Thanks,
Last updated: 2024-02-13

Post by nmcc on Toggling Visualizations using HMI Physical Buttons CODESYS Forge talk (Post)
Hey thank you for the reply dkugler. I am sorry if this seems like a stupid question. I have the use current visuvariable checkbox enabled. I can see the string names of all my visualizations. I am trying to use ladder logic to be the anser to the button press using "VisuElems.CurrentVisu := 'MainScreen';. This returns an error. Any idea what I am doing wrong or could you point me in the right direction for fixing this. Thanks,
Last updated: 2024-02-13

Post by gseidel on CNC - system goes to X=0 Y=0 before CNC file execution starts, how to avoid that? CODESYS Forge talk (Post)
Hi peterned, the start position given in the CNC properties is only used if you use the compile mode OutQueue. With compile mode SMC_CNC_REF, you need to provide the start position in the IEC application. The function block SMC_NCInterpreter has an input piStartPosition. You can initialize it with the output of the forward kinematic transormation FB for your machine. In your case probably SMC_TRAFOF_Gantry2. Best regards, Georg
Last updated: 2024-04-30

Post by mrbartpawlowski on OMAC PackML library 1.0.04 CODESYS Forge talk (Post)
Hello all, Can someone point me to the OMAC PackML State Machine library documentation, I can't find any description of the block functionality ? I was looking into https://content.helpme-codesys.com/en/libs/index.html but there's no PackML there. I'm new to Codesys and don't know if I'm doing something wrong here ? In library tab in codesys whenever I want to see documentation I'm getting an error. Regards Bart
Last updated: 2024-08-15

Post by mrbartpawlowski on OMAC PackML library 1.0.04 CODESYS Forge talk (Post)
Hello all, Can someone point me to the OMAC PackML State Machine library documentation, I can't find any description of the block functionality ? I was looking into https://content.helpme-codesys.com/en/libs/index.html but there's no PackML there. I'm new to Codesys and don't know if I'm doing something wrong here ? In library tab in codesys whenever I want to see documentation I'm getting an error. Regards Bart
Last updated: 2024-08-15

Post by jeroenaero on CodeSys Raspberry pi I2C driver not found CODESYS Forge talk (Post)
Hello, We have a problem with CodeSys on a raspbery pi with an ADS1015 analog to I2C module. It can't find the I2C device on the i2c bus, it says No I2C Driver Found. When we use the RPI terminal we can find the I2C device and read it out. The i2c-1 bus is also accessible from codesys. The device address of the Analog to I2C module is 0x48. Can someone have a look what the problem is? i submitted the screenshots in the attachments. i also include the device description and library.
Last updated: 2024-11-07

Post by denkihitsuji on Content update through Data URI on Web Brower on Visualization Toolbox CODESYS Forge talk (Post)
Objective: I want to dynamically update the content with strings and JPEG images received from a TCP/IP socket. For this purpose, I am exploring the possibility of utilizing the Web Browser feature of the Visualization toolbox. Example: In a standard web browser, entering data:text/plain;charset=utf-8;base64,SGVsbG8gc3RyYW5nZXI= in the URL window will display "Hello stranger" on the webpage. Issue: When attempting to use this method in the Web Browser of the Visualization toolbox, the content does not display as expected. Instead, it shows the error:'Navigation to the webpage was canceled.'. Request: I seek guidance on how to resolve this issue so that the Web Browser in the Visualization toolbox correctly interprets and displays the data URI content. Alternative Solution Welcomed: Or, if it is possible to directly use Codesys Structured Text (ST) variables within an HTML page, this approach would also meet my requirements. Thank you for your attention.
Last updated: 2024-07-30

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