Need to know about the possibility of sending reset signal to codesys over Ethernet ^{CODESYS Forge talk (Thread)}
Need to know about the possibility of sending reset signal to codesys over Ethernet
Last updated: 2020-06-29

it is possible to add a function template to a program from scripting ... ^{CODESYS Forge talk (Thread)}
it is possible to add a function template to a program from scripting ...
Last updated: 2018-05-25

Is there any material for us to guide to build a device xml file and library. ^{CODESYS Forge talk (Thread)}
Is there any material for us to guide to build a device xml file and library.
Last updated: 2017-05-28

Licence lost due to broken SD Card. How to reactivate it on same Rapsperry device ^{CODESYS Forge talk (Thread)}
Licence lost due to broken SD Card. How to reactivate it on same Rapsperry device
Last updated: 2019-10-07

how to execute a pointer to a function or a function block? ^{CODESYS Forge talk (Thread)}
how to execute a pointer to a function or a function block?
Last updated: 2017-04-04

How to set Codesys to use defaut keyboard of a smartphone? ^{CODESYS Forge talk (Thread)}
How to set Codesys to use defaut keyboard of a smartphone?
Last updated: 2023-02-13

3.5: How to get online to CPU with USB/CAN Kvaser ^{CODESYS Forge talk (Thread)}
3.5: How to get online to CPU with USB/CAN Kvaser
Last updated: 2020-12-22

'The object GUID 'xxxx' is not valid' message when trying to commit a project to SVN ^{CODESYS Forge talk (Thread)}
'The object GUID 'xxxx' is not valid' message when trying to commit a project to SVN
Last updated: 2022-09-14

Is it possible to convert a string of 32-bit of binary to a float32? ^{CODESYS Forge talk (Thread)}
Is it possible to convert a string of 32-bit of binary to a float32?
Last updated: 2023-03-23

Convert from string containing HEX values to the corresponding chars (E.G. '414141' to 'AAA') ^{CODESYS Forge talk (Thread)}
Convert from string containing HEX values to the corresponding chars (E.G. '414141' to 'AAA')
Last updated: 2023-07-19

Need to know about the possibility of sending reset signal to codesys over Ethernet ^{CODESYS Forge talk (Thread)}
Need to know about the possibility of sending reset signal to codesys over Ethernet
Last updated: 2020-06-29

How to initialize arrays of function blocks that need FB_Init to work ^{CODESYS Forge talk (Thread)}
How to initialize arrays of function blocks that need FB_Init to work
Last updated: 2020-08-21

Impossible to enter en FB from a CFC to debug it: "nProjectHandle: 'xxx' is invalid." error ^{CODESYS Forge talk (Thread)}
Impossible to enter en FB from a CFC to debug it: "nProjectHandle: 'xxx' is invalid." error
Last updated: 2023-02-23

How to create an alias or other parallel definition to a structure ^{CODESYS Forge talk (Thread)}
How to create an alias or other parallel definition to a structure
Last updated: 2022-10-27

How to use __VARINFO within a function block to obtain the origin variable name? ^{CODESYS Forge talk (Thread)}
How to use __VARINFO within a function block to obtain the origin variable name?
Last updated: 2022-03-15

How to Map Arrary of Bool to fixed IEC Address? ^{CODESYS Forge talk (Thread)}
How to Map Arrary of Bool to fixed IEC Address?
Last updated: 2023-06-30

How to modify the time zone information to set with Adelaide, AU in DTutil library? ^{CODESYS Forge talk (Thread)}
How to modify the time zone information to set with Adelaide, AU in DTutil library?
Last updated: 2017-11-04

Post by ph0010421 on How to transfer data from DINT to Union(16 Bools) which I need to use in Few FBs ^{CODESYS Forge talk (Post)}
In the Struct, change the 'BOOL' to 'BIT'
Last updated: 2023-12-14

Open dialog from ST , how to set parameters (vars) to dialog ^{CODESYS Forge talk (Thread)}
Open dialog from ST , how to set parameters (vars) to dialog
Last updated: 2024-06-05

Any ways to prevent Infinite scroll when moving an object to the left or top edge? ^{CODESYS Forge talk (Thread)}
Any ways to prevent Infinite scroll when moving an object to the left or top edge?
Last updated: 2025-10-24

Which Lib to use, connect to a socket with URL instead of IP address ^{CODESYS Forge talk (Thread)}
Which Lib to use, connect to a socket with URL instead of IP address
Last updated: 2025-11-12

how to convert library from CodeSys 2.3 to CodeSys 3.x ? ^{CODESYS Forge talk (Thread)}
how to convert library from CodeSys 2.3 to CodeSys 3.x ?
Last updated: 5 days ago

Post by mogam on Internal error:System.NullReferenceException: The object reference was not set to an object instance. ^{CODESYS Forge talk (Post)}
Hi everyone, I have a my App that reads values from a shared memory than 2 variables x,y were calculated. here as you can see in my code: PROGRAM PLC_PRG VAR szName : STRING := '/SM'; ( Name of the shared memory.) uxiSize : __UXINT := 646 * 2 * SIZEOF(REAL); ( Size of the shared memory. ) hShm : RTS_IEC_HANDLE; ( Handle to the shared memory ) pStart : POINTER TO REAL; ( Pointer to the first element in the memory ) pData : POINTER TO REAL; ( Pointer, which is incremented until the last sign in the memory is reached. ) shared_data :ARRAY[0..645, 0..1] OF REAL; velocity : ARRAY[0..2] OF REAL; ( Velocity array ) position : ARRAY[0..2] OF REAL; ( Position array ) angleDepth : ARRAY[0..645, 0..1] OF REAL; ( Angle and depth array ) xEndOfMemory : BOOL; x : ARRAY[0..645] OF REAL := 1.0; y : ARRAY[0..645] OF REAL := 1.0; (* Result of actions at the memory. *) OpenResult : RTS_IEC_RESULT; ReadResult : RTS_IEC_RESULT; PointerResult : RTS_IEC_RESULT; DeleteResult : RTS_IEC_RESULT; CloseResult : RTS_IEC_RESULT; i : INT; END_VAR ( Open the shared memory ) hShm := SysSharedMemoryOpen2(szName, 0, ADR(uxiSize), ADR(OpenResult)); IF hShm <> RTS_INVALID_HANDLE THEN (* Read the entire shared memory table *) SysSharedMemoryRead(hShm:= hShm, ulOffset:= 0, pbyData:= ADR(shared_data), ulSize:= uxiSize, pResult:= ADR(ReadResult)); (* Fetch the pointer from the shared memory. The pointer is pointing to the first element address *) //pStart := SysSharedMemoryGetPointer(hShm, ADR(PointerResult)); (* Close the shared memory *) //CloseResult := SysSharedMemoryClose(hShm := hShm); (* Read velocity and position data from the shared memory *) FOR i := 0 TO 2 DO velocity[i] := shared_data[i, 0]; position[i] := shared_data[i, 1]; END_FOR; (* Read angle and depth data from the shared memory *) FOR i := 0 TO 645 DO angleDepth[i, 0] := shared_data[(i + 6), 0]; angleDepth[i, 1] := shared_data[(i + 6), 1]; END_FOR; FOR i := 0 TO 645 DO x[i] := angleDepth[i, 1]*COS(angleDepth[i, 0]); y[i] := angleDepth[i, 1]*SIN(angleDepth[i, 0]); END_FOR; END_IF For these values an XY-CHART needs to be done and when i create a visualisation and set the x data and y data when i try to compile, i recieve this error: ------ Übersetzungslauf gestartet: Applikation: Device.Read_App ------- Code typisieren ... [FEHLER] Internal error:System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt. bei _3S.CoDeSys.LanguageModelManager.LDateType.Accept(ITypeVisitor typvis) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..
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(_IUserdefType ) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei _3S.CoDeSys.Compiler35140.Compiler.
(_ICompileContext , _IPreCompileContext , _ICompileContext , IProgressCallback ) bei _3S.CoDeSys.Compiler35140.Compiler.
(_ICompileContext , Boolean , Boolean , _IPreCompileContext , _IPreCompileContext , _ICompileContext , Boolean , Boolean& , IProgressCallback ) bei _3S.CoDeSys.Compiler35140.Compiler.
(Guid , Boolean , Boolean , Boolean , Boolean& , _ICompileContext& , _ICompileContext& , IProgressCallback , Boolean , Boolean ) Kompilierung abgeschlossen -- 1 Fehler, 0 Warnungen Übersetzung abgeschlossen -- 1 Fehler, 0 Warnungen : Kein Download möglich!
Last updated: 2024-05-24

Post by mogam on Internal error:System.NullReferenceException: The object reference was not set to an object instance. ^{CODESYS Forge talk (Post)}
Hi everyone, I have a my App that reads values from a shared memory than 2 variables x,y were calculated. here as you can see in my code: PROGRAM PLC_PRG VAR szName : STRING := '/SM'; ( Name of the shared memory.) uxiSize : __UXINT := 646 * 2 * SIZEOF(REAL); ( Size of the shared memory. ) hShm : RTS_IEC_HANDLE; ( Handle to the shared memory ) pStart : POINTER TO REAL; ( Pointer to the first element in the memory ) pData : POINTER TO REAL; ( Pointer, which is incremented until the last sign in the memory is reached. ) shared_data :ARRAY[0..645, 0..1] OF REAL; velocity : ARRAY[0..2] OF REAL; ( Velocity array ) position : ARRAY[0..2] OF REAL; ( Position array ) angleDepth : ARRAY[0..645, 0..1] OF REAL; ( Angle and depth array ) xEndOfMemory : BOOL; x : ARRAY[0..645] OF REAL := 1.0; y : ARRAY[0..645] OF REAL := 1.0; (* Result of actions at the memory. *) OpenResult : RTS_IEC_RESULT; ReadResult : RTS_IEC_RESULT; PointerResult : RTS_IEC_RESULT; DeleteResult : RTS_IEC_RESULT; CloseResult : RTS_IEC_RESULT; i : INT; END_VAR ( Open the shared memory ) hShm := SysSharedMemoryOpen2(szName, 0, ADR(uxiSize), ADR(OpenResult)); IF hShm <> RTS_INVALID_HANDLE THEN (* Read the entire shared memory table *) SysSharedMemoryRead(hShm:= hShm, ulOffset:= 0, pbyData:= ADR(shared_data), ulSize:= uxiSize, pResult:= ADR(ReadResult)); (* Fetch the pointer from the shared memory. The pointer is pointing to the first element address *) //pStart := SysSharedMemoryGetPointer(hShm, ADR(PointerResult)); (* Close the shared memory *) //CloseResult := SysSharedMemoryClose(hShm := hShm); (* Read velocity and position data from the shared memory *) FOR i := 0 TO 2 DO velocity[i] := shared_data[i, 0]; position[i] := shared_data[i, 1]; END_FOR; (* Read angle and depth data from the shared memory *) FOR i := 0 TO 645 DO angleDepth[i, 0] := shared_data[(i + 6), 0]; angleDepth[i, 1] := shared_data[(i + 6), 1]; END_FOR; FOR i := 0 TO 645 DO x[i] := angleDepth[i, 1]*COS(angleDepth[i, 0]); y[i] := angleDepth[i, 1]*SIN(angleDepth[i, 0]); END_FOR; END_IF For these values an XY-CHART needs to be done and when i create a visualisation and set the x data and y data when i try to compile, i recieve this error: ------ Übersetzungslauf gestartet: Applikation: Device.Read_App ------- Code typisieren ... [FEHLER] Internal error:System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt. bei _3S.CoDeSys.LanguageModelManager.LDateType.Accept(ITypeVisitor typvis) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei ..
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(String , IVariable[]& , ISignature[]& ) bei ..
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(_IUserdefType ) bei ..(_IVariable , IScope5 , _ICompileContext , _ISignature ) bei ..(_ISignature , IScope5 , _ICompileContext ) bei _3S.CoDeSys.Compiler35140.Compiler.
(_ICompileContext , _IPreCompileContext , _ICompileContext , IProgressCallback ) bei _3S.CoDeSys.Compiler35140.Compiler.
(_ICompileContext , Boolean , Boolean , _IPreCompileContext , _IPreCompileContext , _ICompileContext , Boolean , Boolean& , IProgressCallback ) bei _3S.CoDeSys.Compiler35140.Compiler.
(Guid , Boolean , Boolean , Boolean , Boolean& , _ICompileContext& , _ICompileContext& , IProgressCallback , Boolean , Boolean ) Kompilierung abgeschlossen -- 1 Fehler, 0 Warnungen Übersetzung abgeschlossen -- 1 Fehler, 0 Warnungen : Kein Download möglich!
Last updated: 2024-05-24

Post by abinvest579 on TCP Client ^{CODESYS Forge talk (Post)}
Hi All, I am using codesys based plc to read and control magna power DC supply over LXI protocol using SCPI command. To connect device required socket programming for that i am using Net base service library function block TCP_Client to establish connection over TCP/IP , TCP_Write to write SCPI commands and TCP_Read to read data from Magna power DC supply. I have attached screenshot for logic developed. I am able to connect and write commands to device but i not receiving any information from device. For writing Commands i also tried various end of line character like \n,<nl>, A, D, 10, 13, 0x0A, 0x0D but not received any status from device. For testing purpose i am using simple command '*IDN?' to read data. Also if tried to check on hercules software what data actually plc read, first it read correct data after that is read wrong data as see in screen shot. 'Hello World' was correct read and after that Codesys in replaced with 'Codesysorld' that is not correct way. Same issue also appeared for send data. Any one have face same issue how i can read data directly from device correctly and send data please suggest solution on this.</nl>
Last updated: 2024-07-01

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