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

 
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Set color CODESYS Forge talk (Thread)
Set color
Last updated: 2008-03-14

Property - Set private CODESYS Forge talk (Thread)
Property - Set private
Last updated: 2015-08-05

Set date time linux CODESYS Forge talk (Thread)
Set date time linux
Last updated: 2023-12-29

Post by dasch on eCockpit - unable to start simulation CODESYS Forge talk (Post)
This is a known bug in e!Cockpit. See Release notes of V 1.11: 1 e!Cockpit Release Version 1.11 (2022-07) ATTENTION: If a library that uses asynchronous tasks (e.g. WagoAppConfigTool, WagoAppCloud or function modules such as Dali-Master) is dragged into the project, the simulation cannot be started. It is already sufficient to add the library to the project (an FB does not even have to be instantiated). I guess you are using one of these libraries/modules in your project. We e.G. often use PWM modules, these are also affected.
Last updated: 2023-09-05

Post by talhaali on Create an alarm list without use of Alarm config CODESYS Forge talk (Post)
Hi, I am trying to access active alarms in code(As alarm count variable updates only when we go to to alarm table frame in visualization). I wrote following code but it is not working: VAR iCountActiveAlarms : INT; parritfActiveAlarms : POINTER TO ARRAY[0..0] OF IAlarm; itfAlarmManagerClientAll : IAlarmManagerClient; END_VAR AlarmManager.g_AlarmHandler.GetActiveAlarms( itfAlarmManagerClient :=itfAlarmManagerClientAll, iCountActiveAlarms => iCountActiveAlarms, parritfActiveAlarms => parritfActiveAlarms); The Value is always 0. Please help.
Last updated: 2024-06-06

Post by talhaali on Create an alarm list without use of Alarm config CODESYS Forge talk (Post)
Hi, I am trying to access active alarms in code(As alarm count variable updates only when we go to to alarm table frame in visualization). I wrote following code but it is not working: VAR iCountActiveAlarms : INT; parritfActiveAlarms : POINTER TO ARRAY[0..0] OF IAlarm; itfAlarmManagerClientAll : IAlarmManagerClient; END_VAR AlarmManager.g_AlarmHandler.GetActiveAlarms( itfAlarmManagerClient :=itfAlarmManagerClientAll, iCountActiveAlarms => iCountActiveAlarms, parritfActiveAlarms => parritfActiveAlarms); The Value is always 0. Please help.
Last updated: 2024-06-06

Post by liai on an not create Symbol Configuration in Codesys V3.5 SP20 Patch 4 CODESYS Forge talk (Post)
Thanks a lot, help me understood more of the concept of sodesys software. May you Have a good day!
Last updated: 2025-03-10

Post by gseidel on AXIS_REF_SM3 Error Codes? CODESYS Forge talk (Post)
Hi SLUCodesys, dwErrorId is a drive specific error number. The drive documentation should be consulted to interpret it. (Note that you should use MC_ReadAxisError to read this error, see https://content.helpme-codesys.com/en/libs/SM3_Basic/Current/SM3_Basic/POUs/Diagnostics/MC_ReadAxisError.html. Accessing the internal variable will result in outdated values if the acis error is not mapped by PDO and is not recommended in general.) uiDriveInterfaceError holds errors of the SoftMotion driver for the drive. It is also an internal variable, not intended for direct access. It is intended for logging, the PLC log will contain the drive interface error, consisting of this number and an error text. My recommendation for handling axis errors in the CODESYS application: 1) Use MC_ReadStatus on the axis to find out whether it is in state Errorstop 2) If in Errorstop, there are two possibilities: an error reported by the drive (MC_ReadAxisError) or an error of the SoftMotion function blocks (output MC_ReadStatus.FBErrorOccured). 3) If there is no drive error, you can use SMC_ReadFBError https://content.helpme-codesys.com/en/libs/SM3_Basic/Current/SM3_Basic/POUs/Diagnostics/FBError/SMC_ReadFBError.html Best regards, Georg
Last updated: 2025-09-24

RemoteTargetVisu creates Unresolved Reference CODESYS Forge talk (Thread)
RemoteTargetVisu creates Unresolved Reference
Last updated: 2025-04-17

unresolved reference(s)? CODESYS Forge talk (Thread)
unresolved reference(s)?
Last updated: 2016-05-09

Reference auf ein Propertie CODESYS Forge talk (Thread)
Reference auf ein Propertie
Last updated: 2011-08-05

Cmpscheduler unresolved reference (twincat) CODESYS Forge talk (Thread)
Cmpscheduler unresolved reference (twincat)
Last updated: 2017-10-14

Problem mit REFERENCE Übergabe CODESYS Forge talk (Thread)
Problem mit REFERENCE Übergabe
Last updated: 2013-02-25

Unresolved Reference: 'CMPTLSCREATECONTEXT' CODESYS Forge talk (Thread)
Unresolved Reference: 'CMPTLSCREATECONTEXT'
Last updated: 2023-05-03

Unresolved Reference: "CODEMGETCONTENTBYFIRMCODE2" CODESYS Forge talk (Thread)
Unresolved Reference: "CODEMGETCONTENTBYFIRMCODE2"
Last updated: 2021-04-13

Python Reference CODESYS Forge talk (Thread)
Python Reference
Last updated: 2019-07-30

POINTER vs REFERENCE CODESYS Forge talk (Thread)
POINTER vs REFERENCE
Last updated: 2013-01-10

Cross reference list behavior CODESYS Forge talk (Thread)
Cross reference list behavior
Last updated: 2014-09-26

Unresolved reference CL2_XXXXXXXXX CODESYS Forge talk (Thread)
Unresolved reference CL2_XXXXXXXXX
Last updated: 2023-02-21

Unresolved reference CL2_XXXXXXXXX CODESYS Forge talk (Thread)
Unresolved reference CL2_XXXXXXXXX
Last updated: 2023-02-20

WAGO PFC200 Identifier Reference CODESYS Forge talk (Thread)
WAGO PFC200 Identifier Reference
Last updated: 2023-02-13

Unresolved reference CODESYS Forge talk (Thread)
Unresolved reference
Last updated: 2021-07-15

Visualisation generates "Unresolved reference" CODESYS Forge talk (Thread)
Visualisation generates "Unresolved reference"
Last updated: 2026-02-02

Post by sven01 on Documentation / Usage Help For Scripting Engine Libraries CODESYS Forge talk (Post)
Hi, I am still not able to figure out how to use the the classes and their functions. πŸ˜” Let's say I would like to use the function "importfile()" from the class "ScriptTextListObject.ScriptTextListMarker". I would be grateful for an additional example. Thanks! 😊
Last updated: 2023-08-21

Post by robert-o on Converting hex bytes to float CODESYS Forge talk (Post)
Try OSCAT_BASIC and Function DW_TO_REAL. DWORD_OF_BYTE my although help. The Lib is open and free. It is not necessary to add this Lib, you can use/copy the source code just to get an idea.
Last updated: 2024-08-05

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