Post by eschwellinger on Scan Network on gateway created with Control Sl ^{CODESYS Forge talk (Post)}
it seems that the device you scan, is not the same type which you have added to the project in CODESYS. Virtual Control is Arm 64 SL so please select this type in CODESYS when you generate a new Application..or right click to the device- update device - virtual Control Arm 64 SL
Last updated: 2024-10-16

Post by rafaelbrito on The element of type 'VisuFbElemImage' could not be updated. Reason: Index was outside the bounds of the array. ^{CODESYS Forge talk (Post)}
When trying to use the Visualization ToolBox, no objects appear and the following error appears. Could you tell me what this error could be? The element of type 'VisuFbElemImage' could not be updated. Reason: Index was outside the bounds of the array. Can anyone tell me what this error is?
Last updated: 2024-12-03

Post by benemenn on Type mappings in Datasource ^{CODESYS Forge talk (Post)}
Hi! I am trying to achieve the same issue. Has there been a solution? I can create the mapping, and map the local variable, but somehow the object does not update. Furthermore, i have an issue where codesys doesn't let me set ReadWrite accesses to the variables in the "Type Mapping" place. The access will simply not be set. Has anyone ran int that issue?
Last updated: 2025-04-02

Post by mucleus on How do I fix ";Internal Error (x86-64): Invalid type size" error? ^{CODESYS Forge talk (Post)}
I opened the project file of version 3.5.19.7 in 3.5.21.0. I updated all the environment of the project to the latest and compiled it. When I compile it, I get an error ";Internal Error (x86-64): Invalid type size". How can I fix this error? I will wait for your help.
Last updated: 2025-04-15

Post by zoppp on Visu Frame-configuration___text will not work ^{CODESYS Forge talk (Post)}
Yup, I've been having the exact same issue. A workaround that was working until Visu 4.8.0.0 was using TextList as the type in the frame configuration and then wrapping the text in quotes when configuring it. Im not sure if it will work with variables and I know it does not work if the type is text.
Last updated: 2025-06-17

Post by eksheep on Unit Tests and C007: Unknown Type ^{CODESYS Forge talk (Post)}
Hello, I am attempting to implement unit tests for my POUs. When building and running the unit tests I receive error C007: Unknown Type for all types defined in the library, Standard, 3.5.18.0. Which is included in the POU Library Manager. Any input would be appreciated. TIA.
Last updated: 2025-08-27

Post by gseidel on The default ramp type selection in SoftMotion V4.18.0.0 is Quadratic ^{CODESYS Forge talk (Post)}
Hi imdatatas, thanks for your feedback. This change was intentional, as the quadratic ramp type has many advantages over the trapez ramptype. Sorry to hear it causes problems in your situation. Can you please shortly explain the nature of the problems? Best regards, Georg
Last updated: 2025-09-08

Post by eschwellinger on License problem gateway ^{CODESYS Forge talk (Post)}
most important information are missing: Which CODESYS Version? Which runtime version? Which plc type (manufacturere).. Not all plc manufacturer already support application based licenses. From your pictures I see you have activated 4 axis Motion (which is an applications based license type) does only work on plc's which do support this.
Last updated: 2024-04-25

Post by phoward131 on Numpad decimal value requires leading zero ^{CODESYS Forge talk (Post)}
I have noticed on the standard numpad dialog, if a user enters a purely decimal number (ie '.6'), the numpad will not accept the value but gives no indication. One must type a leading zero (ie '0.6') in order for it to work. Is there a way to correct this so that a user can just type the decimal value?
Last updated: 2024-04-30

Post by clesio on CAA.File.Write – Unexpected characters when writing a CSV file ^{CODESYS Forge talk (Post)}
Hello everyone, I am trying to create a routine in CODESYS to export a report to a CSV file using the CAA.File library. The file is created successfully, but I am getting some unexpected/unknown characters in the generated CSV. The problem seems to be related to the SIZEOF() function. I am using it for the szSize parameter of File.Write, as recommended in the CODESYS documentation. However, when I use SIZEOF(), the CSV contains extra characters and parts of previous strings. I also tried using LEN(), but in my application the file is created empty, even though the string and the calculated length appear to be correct. Here is the relevant part of my code: PROGRAM Relatorio VAR // Bool b_Executa_fb_Cria_Arquivo : BOOL; b_Executa_fb_Fecha_Arquivo : BOOL; b_Escreve_dados : BOOL; b_Erro_fb_Escreve : BOOL; //STR s_Nome_Arquivo : STRING; s_Palavra : STRING; s_Palavra_Anterior : STRING; s_Data_Atualizada_Formatada : STRING; s_Dia : STRING; s_Mes : STRING; s_Ano : STRING; s_Hora_Atualizada_Formatada : STRING; s_Hora : STRING; s_Minu : STRING; s_Segu : STRING; //INT i_modo_fb_Cria_Arquivo : INT; i_ErroID_fb_Escreve : INT; //UINT i_Tamanho_Palavra : UINT; // Blocos de Funcao fb_Cria_Arquivo : FILE.Open; fb_Fecha_Arquivo : FILE.Close; fb_Escreve : FILE.Write; // DATA E HORA sc_DataTime : SysTimeRtc.RTS_SYSTIMEDATE; // STRUCT = sc uidResultRtcGet : UDINT; //stGetDate : SysTimeRtc.RTS_SYSTIMEDATE; uidResultConvertToDate : UDINT; uidResult : RTS_IEC_RESULT; END_VAR VAR_INPUT //BOOL b_SET_Executa_fb_Cria_Arquivo : BOOL; b_RES_Executa_fb_Cria_Arquivo : BOOL; b_Executa_fb_Escrita : BOOL; // INT i_Linhas_Cabecalho : INT; i_Linhas_Cabecalho_Anterior : INT; END_VAR // Para Testes s_Nome_Arquivo := 'relatorio/Teste1M.CSV'; i_modo_fb_Cria_Arquivo := 0; // TRATAMENTO DE DATOS DATA e HORA uidResultRtcGet := SysTimeRtcGet(uidResult); uidResultConvertToDate := SysTimeRtcConvertUtcToDate(dwTimestampUtc := uidResultRtcGet, pDate := sc_DataTime); // FORMATA DATA EM UMA STRING s_Dia := UINT_TO_STRING(sc_DataTime.wDay); s_Mes := UINT_TO_STRING(sc_DataTime.wMonth); s_Ano := UINT_TO_STRING(sc_DataTime.wYear); s_Data_Atualizada_Formatada := CONCAT(s_Dia, CONCAT('/', CONCAT(s_Mes, CONCAT('/', s_Ano)))); // FORMATA HORA EM UMA STRING s_Hora := UINT_TO_STRING(sc_DataTime.wHour); s_Minu := UINT_TO_STRING(sc_DataTime.wMinute); s_Segu := UINT_TO_STRING(sc_DataTime.wSecond); s_Hora_Atualizada_Formatada := CONCAT(s_Hora, CONCAT(':', CONCAT(s_Minu, CONCAT(':', s_Segu)))); // ABRE e CRIA ARQUIVO IF (b_SET_Executa_fb_Cria_Arquivo OR b_Executa_fb_Cria_Arquivo) AND NOT(b_RES_Executa_fb_Cria_Arquivo) THEN b_Executa_fb_Cria_Arquivo := TRUE; ELSE b_Executa_fb_Cria_Arquivo := FALSE; END_IF fb_Cria_Arquivo( xExecute := b_Executa_fb_Cria_Arquivo, sFileName := s_Nome_Arquivo, eFileMode := i_modo_fb_Cria_Arquivo, xExclusive := FALSE, ); //i_Tamanho_Palavra := SizeOf(s_Palavra); // ESCREVE NO ARQUIVO fb_Escreve( xExecute := b_Executa_fb_Escrita, hFile := fb_Cria_arquivo.hFile, szSize := SIZEOF(s_Palavra), pBuffer := ADR(s_palavra) ); // FECHA ARQUIVO fb_Fecha_Arquivo( xExecute := b_Executa_fb_Fecha_Arquivo, hFile := fb_Cria_arquivo.hFile ); IF Criacao_Edicao_Arquivos.b_Escreve_Cabecalho THEN CASE i_Linhas_Cabecalho OF 1 : s_palavra := 'ESTERILIZADOR'; 2: s_palavra := 'MAQ4; $R$L'; 3: s_palavra := CONCAT(CONCAT('CLIENTE: ',GVL.sReceitaAtual), '$R$L'); 4: s_palavra := CONCAT(CONCAT('NUMERO LOTE: ',DINT_TO_STRING(GVL.Lote)), '$R$L'); 5: s_palavra := CONCAT(CONCAT('OPERADOR: ', DINT_TO_STRING(GVL.Operador)), '$R$L'); 6: s_palavra := CONCAT(CONCAT('DATA: ', s_Data_Atualizada_Formatada), '$R$L'); 7: s_palavra := CONCAT(CONCAT('HORA: ', s_Hora_Atualizada_Formatada), '$R$L'); 8: s_palavra := '$R$L'; 9: s_palavra := 'PARAMETROS AJUSTADOS $R$L'; 10: s_palavra := CONCAT('TEMPO PRE COND.: ', CONCAT(INT_TO_STRING(GVL.rc_T_PreCondicionamento), ' min $R$L')); 11: s_palavra := CONCAT('PULSOS INERTIZACAO 1: ', CONCAT(INT_TO_STRING(GVL.rc_PulsosInertizacao_1), ' PULSOS $R$L')); 12: s_palavra := CONCAT('PULSOS INERTIZACAO 2: ', CONCAT(INT_TO_STRING(GVL.rc_PulsosInertizacao_2), ' PULSOS $R$L')); 13: s_palavra := CONCAT('PULSOS AERACAO: ', CONCAT(INT_TO_STRING(GVL.rc_PulsosAeracao_2), ' PULSOS $R$L')); 14: s_palavra := CONCAT('PRESSAO DE VACUO 1: ', CONCAT(REAL_TO_STRING(GVL.rc_PV1_max), ' bar $R$L')); 15: s_palavra := CONCAT('PRESSAO DE VACUO 2: ', CONCAT(REAL_TO_STRING(GVL.rc_PV2), ' bar $R$L')); 16: s_palavra := CONCAT('PRESSAO INERTIZACAO 1: ', CONCAT(REAL_TO_STRING(GVL.rc_PN1), ' bar $R$L')); 17: s_palavra := CONCAT('PRESSAO INERTIZACAO 2: ', CONCAT(REAL_TO_STRING(GVL.rc_PN2), ' bar $R$L')); 18: s_palavra := CONCAT('PRESSAO AERACAO: ', CONCAT(REAL_TO_STRING(GVL.rc_PAR), ' bar $R$L')); 19: s_palavra := CONCAT('PRESSAO ETO: ', CONCAT(REAL_TO_STRING(GVL.rc_PressaoETO), ' bar $R$L')); 20: s_palavra := CONCAT('PRESSAO Compl.: ', CONCAT(REAL_TO_STRING(GVL.rc_PressaoETO_2), ' bar $R$L')); 21: s_palavra := CONCAT('MASSA ETO: ', CONCAT(REAL_TO_STRING(GVL.rc_QuantidadeETO), ' Kg $R$L')); 22: s_palavra := CONCAT('TEMPO PRE COND. Vacuo/Vapor: ', CONCAT(INT_TO_STRING(GVL.rc_T_Vapor_1), ' min $R$L')); 23: s_palavra := CONCAT('SET-POINT: ', CONCAT(REAL_TO_STRING(GVL.ihm_SPTemperatura), ' °C $R$L')); 24: s_palavra := CONCAT('TEMPO ESTERILIZACAO: ', CONCAT(INT_TO_STRING(GVL.rc_TempoEsterilizacao), ' min $R$L')); 25: s_palavra := CONCAT('TEMPO PARADA: ', CONCAT(INT_TO_STRING(GVL.rc_T_PressaoParada), ' min $R$L')); 26: s_palavra := CONCAT('UMIDADE: ', CONCAT(REAL_TO_STRING(GVL.rc_UmidadeRelativa), ' % $R$L')); 27: s_palavra := '$R$L'; END_CASE END_IF Note: The code I am attaching does not include the execution/sequence management of the function blocks. I have omitted this part to keep the example focused on the CSV writing routine. The function blocks are triggered and managed by a separate state machine. I am not sure what the correct approach is in this case, especially since the official documentation recommends using SIZEOF() for szSize. I will attach my code and a screenshot of the generated CSV showing the issue. Has anyone experienced something similar or could suggest the correct way to write a changing STRING to a CSV file using CAA.File.Write?
Last updated: 2026-09-08

Post by clesio on CAA.File.Write – Unexpected characters when writing a CSV file ^{CODESYS Forge talk (Post)}
Hello everyone, I am trying to create a routine in CODESYS to export a report to a CSV file using the CAA.File library. The file is created successfully, but I am getting some unexpected/unknown characters in the generated CSV. The problem seems to be related to the SIZEOF() function. I am using it for the szSize parameter of File.Write, as recommended in the CODESYS documentation. However, when I use SIZEOF(), the CSV contains extra characters and parts of previous strings. I also tried using LEN(), but in my application the file is created empty, even though the string and the calculated length appear to be correct. Here is the relevant part of my code: PROGRAM Relatorio VAR // Bool b_Executa_fb_Cria_Arquivo : BOOL; b_Executa_fb_Fecha_Arquivo : BOOL; b_Escreve_dados : BOOL; b_Erro_fb_Escreve : BOOL; //STR s_Nome_Arquivo : STRING; s_Palavra : STRING; s_Palavra_Anterior : STRING; s_Data_Atualizada_Formatada : STRING; s_Dia : STRING; s_Mes : STRING; s_Ano : STRING; s_Hora_Atualizada_Formatada : STRING; s_Hora : STRING; s_Minu : STRING; s_Segu : STRING; //INT i_modo_fb_Cria_Arquivo : INT; i_ErroID_fb_Escreve : INT; //UINT i_Tamanho_Palavra : UINT; // Blocos de Funcao fb_Cria_Arquivo : FILE.Open; fb_Fecha_Arquivo : FILE.Close; fb_Escreve : FILE.Write; // DATA E HORA sc_DataTime : SysTimeRtc.RTS_SYSTIMEDATE; // STRUCT = sc uidResultRtcGet : UDINT; //stGetDate : SysTimeRtc.RTS_SYSTIMEDATE; uidResultConvertToDate : UDINT; uidResult : RTS_IEC_RESULT; END_VAR VAR_INPUT //BOOL b_SET_Executa_fb_Cria_Arquivo : BOOL; b_RES_Executa_fb_Cria_Arquivo : BOOL; b_Executa_fb_Escrita : BOOL; // INT i_Linhas_Cabecalho : INT; i_Linhas_Cabecalho_Anterior : INT; END_VAR // Para Testes s_Nome_Arquivo := 'relatorio/Teste1M.CSV'; i_modo_fb_Cria_Arquivo := 0; // TRATAMENTO DE DATOS DATA e HORA uidResultRtcGet := SysTimeRtcGet(uidResult); uidResultConvertToDate := SysTimeRtcConvertUtcToDate(dwTimestampUtc := uidResultRtcGet, pDate := sc_DataTime); // FORMATA DATA EM UMA STRING s_Dia := UINT_TO_STRING(sc_DataTime.wDay); s_Mes := UINT_TO_STRING(sc_DataTime.wMonth); s_Ano := UINT_TO_STRING(sc_DataTime.wYear); s_Data_Atualizada_Formatada := CONCAT(s_Dia, CONCAT('/', CONCAT(s_Mes, CONCAT('/', s_Ano)))); // FORMATA HORA EM UMA STRING s_Hora := UINT_TO_STRING(sc_DataTime.wHour); s_Minu := UINT_TO_STRING(sc_DataTime.wMinute); s_Segu := UINT_TO_STRING(sc_DataTime.wSecond); s_Hora_Atualizada_Formatada := CONCAT(s_Hora, CONCAT(':', CONCAT(s_Minu, CONCAT(':', s_Segu)))); // ABRE e CRIA ARQUIVO IF (b_SET_Executa_fb_Cria_Arquivo OR b_Executa_fb_Cria_Arquivo) AND NOT(b_RES_Executa_fb_Cria_Arquivo) THEN b_Executa_fb_Cria_Arquivo := TRUE; ELSE b_Executa_fb_Cria_Arquivo := FALSE; END_IF fb_Cria_Arquivo( xExecute := b_Executa_fb_Cria_Arquivo, sFileName := s_Nome_Arquivo, eFileMode := i_modo_fb_Cria_Arquivo, xExclusive := FALSE, ); //i_Tamanho_Palavra := SizeOf(s_Palavra); // ESCREVE NO ARQUIVO fb_Escreve( xExecute := b_Executa_fb_Escrita, hFile := fb_Cria_arquivo.hFile, szSize := SIZEOF(s_Palavra), pBuffer := ADR(s_palavra) ); // FECHA ARQUIVO fb_Fecha_Arquivo( xExecute := b_Executa_fb_Fecha_Arquivo, hFile := fb_Cria_arquivo.hFile ); IF Criacao_Edicao_Arquivos.b_Escreve_Cabecalho THEN CASE i_Linhas_Cabecalho OF 1 : s_palavra := 'ESTERILIZADOR'; 2: s_palavra := 'MAQ4; $R$L'; 3: s_palavra := CONCAT(CONCAT('CLIENTE: ',GVL.sReceitaAtual), '$R$L'); 4: s_palavra := CONCAT(CONCAT('NUMERO LOTE: ',DINT_TO_STRING(GVL.Lote)), '$R$L'); 5: s_palavra := CONCAT(CONCAT('OPERADOR: ', DINT_TO_STRING(GVL.Operador)), '$R$L'); 6: s_palavra := CONCAT(CONCAT('DATA: ', s_Data_Atualizada_Formatada), '$R$L'); 7: s_palavra := CONCAT(CONCAT('HORA: ', s_Hora_Atualizada_Formatada), '$R$L'); 8: s_palavra := '$R$L'; 9: s_palavra := 'PARAMETROS AJUSTADOS $R$L'; 10: s_palavra := CONCAT('TEMPO PRE COND.: ', CONCAT(INT_TO_STRING(GVL.rc_T_PreCondicionamento), ' min $R$L')); 11: s_palavra := CONCAT('PULSOS INERTIZACAO 1: ', CONCAT(INT_TO_STRING(GVL.rc_PulsosInertizacao_1), ' PULSOS $R$L')); 12: s_palavra := CONCAT('PULSOS INERTIZACAO 2: ', CONCAT(INT_TO_STRING(GVL.rc_PulsosInertizacao_2), ' PULSOS $R$L')); 13: s_palavra := CONCAT('PULSOS AERACAO: ', CONCAT(INT_TO_STRING(GVL.rc_PulsosAeracao_2), ' PULSOS $R$L')); 14: s_palavra := CONCAT('PRESSAO DE VACUO 1: ', CONCAT(REAL_TO_STRING(GVL.rc_PV1_max), ' bar $R$L')); 15: s_palavra := CONCAT('PRESSAO DE VACUO 2: ', CONCAT(REAL_TO_STRING(GVL.rc_PV2), ' bar $R$L')); 16: s_palavra := CONCAT('PRESSAO INERTIZACAO 1: ', CONCAT(REAL_TO_STRING(GVL.rc_PN1), ' bar $R$L')); 17: s_palavra := CONCAT('PRESSAO INERTIZACAO 2: ', CONCAT(REAL_TO_STRING(GVL.rc_PN2), ' bar $R$L')); 18: s_palavra := CONCAT('PRESSAO AERACAO: ', CONCAT(REAL_TO_STRING(GVL.rc_PAR), ' bar $R$L')); 19: s_palavra := CONCAT('PRESSAO ETO: ', CONCAT(REAL_TO_STRING(GVL.rc_PressaoETO), ' bar $R$L')); 20: s_palavra := CONCAT('PRESSAO Compl.: ', CONCAT(REAL_TO_STRING(GVL.rc_PressaoETO_2), ' bar $R$L')); 21: s_palavra := CONCAT('MASSA ETO: ', CONCAT(REAL_TO_STRING(GVL.rc_QuantidadeETO), ' Kg $R$L')); 22: s_palavra := CONCAT('TEMPO PRE COND. Vacuo/Vapor: ', CONCAT(INT_TO_STRING(GVL.rc_T_Vapor_1), ' min $R$L')); 23: s_palavra := CONCAT('SET-POINT: ', CONCAT(REAL_TO_STRING(GVL.ihm_SPTemperatura), ' °C $R$L')); 24: s_palavra := CONCAT('TEMPO ESTERILIZACAO: ', CONCAT(INT_TO_STRING(GVL.rc_TempoEsterilizacao), ' min $R$L')); 25: s_palavra := CONCAT('TEMPO PARADA: ', CONCAT(INT_TO_STRING(GVL.rc_T_PressaoParada), ' min $R$L')); 26: s_palavra := CONCAT('UMIDADE: ', CONCAT(REAL_TO_STRING(GVL.rc_UmidadeRelativa), ' % $R$L')); 27: s_palavra := '$R$L'; END_CASE END_IF Note: The code I am attaching does not include the execution/sequence management of the function blocks. I have omitted this part to keep the example focused on the CSV writing routine. The function blocks are triggered and managed by a separate state machine. I am not sure what the correct approach is in this case, especially since the official documentation recommends using SIZEOF() for szSize. I will attach my code and a screenshot of the generated CSV showing the issue. Has anyone experienced something similar or could suggest the correct way to write a changing STRING to a CSV file using CAA.File.Write?
Last updated: 2026-09-08

Post by ton on String nach erlaubten/unerlaubten Zeichen durchsuchen ^{CODESYS Forge talk (Post)}
Hi Timo, FUNCTION Sonderzeichen_Check : bool VAR_INPUT sInputString : STRING; // Zu prüfender String END_VAR VAR i: INT; iAsc: INT; END_VAR Sonderzeichen_Check:= TRUE; FOR i:= 0 TO len(sInputString) - 1 DO iAscii:= sInputString[i]; //Get ASCII value //Check value between 48('0') and 65('9') or between 65('A') and 90('Z') or between 97('a') and 122('z') or IF iAscii >= 48 AND iAscii <= 57 OR iAscii >= 65 AND iAscii <= 90 OR iAscii >= 97 AND iAscii <= 122 THEN //iAscii valit ELSE Sonderzeichen_Check:= FALSE; END_IF END_FOR Diese FUNCTION anrufen: VAR xTest1: BOOL; xTest2: BOOL; sCheck: STRING; END_VAR xTest1:= Sonderzeichen_Check(sInputString:= 'abcuharoahse89347KEWDL'); //=TRUE xTest2:= Sonderzeichen_Check(sInputString:= 'abcuharoahse89347KEWDL?'); //=FALSE IF Sonderzeichen_Check(sInputString:= 'CheckThisSting,') THEN sCheck:= 'OK'; ELSE sCheck:= 'NOT OK'; END_IF
Last updated: 2025-01-20

Post by bingo on PLC Shell commands via ST Code ^{CODESYS Forge talk (Post)}
Suppose you need to switch PLC IP dynamically between 192.168.1.10\192.168.2.10, First, set PLC IP to 192.16.1.10. Create a PGVL with a flag ‘xUseSecondry’ xUseSecondry : bool ; create a function that use socket to update IP: FUNCTION fSwitchIP : bool VAR_INPUT useMainIP:bool; END_VAR --------------------------------CODE------ if useMainIP then SysSockSetIPAddress(‘0’, ‘192.168.1.10’); PGVL.xUseSecondry := 0; else SysSockSetIPAddress(‘0’, ‘192.168.2.10’); PGVL.xUseSecondry := 1; end_if Now, if during execution, you need to switch IP, call the function ‘fSwitchIP()’, Set input to 1 for main IP, 0 for secondary IP. In order to set secondary IP at startup, you can do the following: in your PLC_PRG add a flag: xInit : bool := 1 ; and the code: if xInit then if PGVL.xUseSecondry then fSwitchIP(0); end_if xInit := 0 ; end_if *Alternative way is to use system events.
Last updated: 2025-03-03

Post by timvh on Get Alarm status in Codesys ^{CODESYS Forge talk (Post)}
You are right, that you can use the GetState method, but it is not that simple. You first have to get a list of (filtered) alarms from the AlarmManager. You can find an example in Forge how to do this. See https://forge.codesys.com/prj/codesys-example/alarm-manager/home/Home/ Then you can go through this list to get the state of all the (filtered) alarms. See below the code which you could use. This is all based on the example from forge. Create a program: // This example shows how to access alarms via structured text. PROGRAM PLC_PRG VAR xInit : BOOL := TRUE; udiResult : UDINT; fbAlarmFilterCriteriaAll : FB_AlarmFilterCriteriaAll; fbAlarmManagerClient : FB_AlarmManagerClient; itfAlarmManagerClient : IAlarmManagerClient := fbAlarmManagerClient; xAlarm1 : BOOL; xAlarm2 : BOOL; xWarning : BOOL; iNrOfAlarmsInAlarmList : INT; iNrOfActiveAlarmsInAlarmList : INT; paitfAlarm: POINTER TO ARRAY [0..0] OF AlarmManager.IAlarm; iAlarmIndex : INT; eAlarmState: AlarmManager.AlarmState; END_VAR IF xInit THEN xInit := FALSE; fbAlarmManagerClient.itfAlarmFilterCriteria := fbAlarmFilterCriteriaAll; // register alarm client to get updated about alarm status / changes udiResult := AlarmManager.g_AlarmHandler.RegisterClient(itfAlarmManagerClient, 0, 0); END_IF // Polling the number of alarms udiResult := AlarmManager.g_AlarmHandler.GetActiveAlarms(itfAlarmManagerClient, parritfActiveAlarms => paitfAlarm, iCountActiveAlarms => iNrOfAlarmsInAlarmList); iAlarmIndex := 0; iNrOfActiveAlarmsInAlarmList := 0; WHILE iAlarmIndex < iNrOfAlarmsInAlarmList DO eAlarmState := paitfAlarm^[iAlarmIndex].GetState(); IF eAlarmState = AlarmManager.AlarmState.Active OR eAlarmState = AlarmManager.AlarmState.ActiveAcknowledged THEN iNrOfActiveAlarmsInAlarmList := iNrOfActiveAlarmsInAlarmList + 1; END_IF iAlarmIndex := iAlarmIndex + 1; END_WHILE See below some details about the function blocks: One function block should implement the IAlarmFilterCriteria interface. This can be empty except a few methods. FUNCTION_BLOCK FB_AlarmFilterCriteriaAll IMPLEMENTS AlarmManager.IAlarmFilterCriteria Method implementation (others related to interface are empty) METHOD AreAllAlarmClassesSelected : BOOL AreAllAlarmClassesSelected := TRUE; METHOD AreAllAlarmGroupsSelected : BOOL AreAllAlarmGroupsSelected := TRUE; METHOD GetPriorityFrom : USINT GetPriorityFrom := 0; METHOD GetPriorityTo : USINT GetPriorityTo := 255; The other function block should implement IAlarmManagerClient and get a reference to the FB which implements the IAlarmFilterCriteria FUNCTION_BLOCK FB_AlarmManagerClient IMPLEMENTS AlarmManager.IAlarmManagerClient VAR_INPUT itfAlarmFilterCriteria: AlarmManager.IAlarmFilterCriteria; END_VAR Method implementation (others related to the interface are empty) METHOD GetFilterCriteria : AlarmManager.IAlarmFilterCriteria // see VAR_INPUT for filter GetFilterCriteria := itfAlarmFilterCriteria; Off course you have to add the AlarmManager to your application and add some alarms to it.
Last updated: 2025-09-02

Post by thysonfury on OPTO22 Groov Epic PR2 Modbus Comms Dropping out every 2 hours and 4 Mins ^{CODESYS Forge talk (Post)}
Hi after some assistance with an error on a Groov PR2 PLC. We have a few different communications set up as shown below: One Modbus TCP Slave Connection - ( Sending / Receiving Data from a PC ) Two Modbus TCP Master Connection - ( Reading Data from a UPS Panel and Reading Data Gas Chromatograph) One Modbus RTU Slave Connection 485 - (Reading Data from a fire and gas panel) One Modbus RTU Master Connection 485 - (Sending Data to a Telemetry Unit) All Licenses have been installed as per OPTO22 suggestions of the order below: Modbus TCP Master Modbus TCP Slave Modbus RTU Master Modbus RTU Slave When I check on License manager the RTU Master license seems to disappear on installing the RTU. (What ever reason I’ve been told this is “normal”). If I use Device License Read It will successfully read all the licenses correctly. Now the issue is every 2 hours and between 4. For what ever reason the communications seems to end and lock up for about 20 seconds. During this time even if I was logged into the PLC it would kick me off and I’d have to re type the password to enter. Most of the devices can handle this however the RTU flags up a communications failure at the SCADA and is raising alarms every 2 hours and 4 mins. We’ve had multiple people go through the code to check for anything obvious. Does anyone have any ideas?
Last updated: 2024-04-15

Post by thysonfury on OPTO22 Groov Epic PR2 Modbus Comms Dropping out every 2 hours and 4 Mins ^{CODESYS Forge talk (Post)}
Hi after some assistance with an error on a Groov PR2 PLC. We have a few different communications set up as shown below: One Modbus TCP Slave Connection - ( Sending / Receiving Data from a PC ) Two Modbus TCP Master Connection - ( Reading Data from a UPS Panel and Reading Data Gas Chromatograph) One Modbus RTU Slave Connection 485 - (Reading Data from a fire and gas panel) One Modbus RTU Master Connection 485 - (Sending Data to a Telemetry Unit) All Licenses have been installed as per OPTO22 suggestions of the order below: Modbus TCP Master Modbus TCP Slave Modbus RTU Master Modbus RTU Slave When I check on License manager the RTU Master license seems to disappear on installing the RTU. (What ever reason I’ve been told this is “normal”). If I use Device License Read It will successfully read all the licenses correctly. Now the issue is every 2 hours and between 4. For what ever reason the communications seems to end and lock up for about 20 seconds. During this time even if I was logged into the PLC it would kick me off and I’d have to re type the password to enter. Most of the devices can handle this however the RTU flags up a communications failure at the SCADA and is raising alarms every 2 hours and 4 mins. We’ve had multiple people go through the code to check for anything obvious. Does anyone have any ideas?
Last updated: 2024-04-15

Post by thysonfury on OPTO22 Groov Epic PR2 Modbus Comms Dropping out every 2 hours and 4 Mins ^{CODESYS Forge talk (Post)}
Hi after some assistance with an error on a Groov PR2 PLC. We have a few different communications set up as shown below: One Modbus TCP Slave Connection - ( Sending / Receiving Data from a PC ) Two Modbus TCP Master Connection - ( Reading Data from a UPS Panel and Reading Data Gas Chromatograph) One Modbus RTU Slave Connection 485 - (Reading Data from a fire and gas panel) One Modbus RTU Master Connection 485 - (Sending Data to a Telemetry Unit) All Licenses have been installed as per OPTO22 suggestions of the order below: Modbus TCP Master Modbus TCP Slave Modbus RTU Master Modbus RTU Slave When I check on License manager the RTU Master license seems to disappear on installing the RTU. (What ever reason I’ve been told this is “normal”). If I use Device License Read It will successfully read all the licenses correctly. Now the issue is every 2 hours and between 4. For what ever reason the communications seems to end and lock up for about 20 seconds. During this time even if I was logged into the PLC it would kick me off and I’d have to re type the password to enter. Most of the devices can handle this however the RTU flags up a communications failure at the SCADA and is raising alarms every 2 hours and 4 mins. We’ve had multiple people go through the code to check for anything obvious. Does anyone have any ideas?
Last updated: 2024-04-15

Post by jzhvymetal77 on Special Chars in Visualizationfor QR code string ^{CODESYS Forge talk (Post)}
In Visualization, is there any way to make special characters in a string display properly in a Text object? I wrote a function block to create QR codes at runtime. My code uses “$DB,” which in ASCII should render as a solid block. The code works, but to display it in Visualization I had to create multiple rectangles with visibility bound to a BOOL array. That works, but since each BOOL must be exposed as a separate variable, it consumes most of the available monitoring resources. See Attached image.
Last updated: 2025-09-29

Post by jzhvymetal77 on Special Chars in Visualizationfor QR code string ^{CODESYS Forge talk (Post)}
In Visualization, is there any way to make special characters in a string display properly in a Text object? I wrote a function block to create QR codes at runtime. My code uses “$DB,” which in ASCII should render as a solid block. The code works, but to display it in Visualization I had to create multiple rectangles with visibility bound to a BOOL array. That works, but since each BOOL must be exposed as a separate variable, it consumes most of the available monitoring resources. See Attached image.
Last updated: 2025-09-29

Post by nz-dave on Bool turning on in case stament in wrong state? ^{CODESYS Forge talk (Post)}
I have a case statement running a process. during one of the steps it has started calling a bool var that is 2 steps further on in the case? i have even tried //commenting it out but it still turns on at the same point in the case. i have also run a trace but cant see anything that would trigger it. Any Ideas? Cheers
Last updated: 2023-12-15

Post by jari-koivuluoma on JSON_Utilities_SL JSONFileWriter error NULL_POINTER ^{CODESYS Forge talk (Post)}
FB jsonFileWriter gives a NULL_POINTER error, why? JSONByteArrayWriter works fine so the JSONData FB should be fine. The device is CODESYS Control Win V3 x64 in simulation mode. Codesys version is V3.5 SP16 Patch 5 JSON_Utilities_SL version is 1.3.0.0 Src: ST_TestStruct1a; TXT: WSTRING(10000); MakeJSON : BOOL := TRUE; SrcJSONData: JSON.JSONData; jsonFileWriter : JSON.JSONFileWriter; IF MakeJSON THEN MakeJSON := FALSE; // Struct data to JSONData FB F_TestStructToJSON(ADR(Src),ADR(SrcJSONData)); // Writing to file jsonFileWriter( xExecute := TRUE, sFileName := 'c:\JSONTEST\JSON.txt', eEncoding := JSON.Encoding.UTF_16, xAsyncMode := TRUE, jsonData := SrcJSONData ); // Waiting to finish WHILE jsonFileWriter.xBusy DO ; END_WHILE // To text jsonArrayWriter( xExecute := TRUE, pwData := ADR(TXT), udiSize := SIZEOF(TXT), jsonData := SrcJSONData, xAsyncMode := FALSE, ); END_IF
Last updated: 2023-09-08

Post by ewi04 on Git - User identification data is lost when codesys is closed ^{CODESYS Forge talk (Post)}
Hallo, it's not a big problem, but it is a bit annoying. The git user identification data is lost when codesys is closed. So I have to enter the information again and again. Is there a way to save the data? Environment: Codesys V3.5 SP19 Patch 4 (64Bit), Git 1.3.0.0 Thanks
Last updated: 2023-11-22

Post by fazlinda on AWS IoT core CODESYS ^{CODESYS Forge talk (Post)}
Hi, Im having a problem sending a data from my structure text code from codesys to aws. Instead of receiving {state {reported {data: 123}}} It display {state {reported {data: 123}}}\x00 \x00 \x00 \x00 \x00 \x00 \x00 Please help me solve this issues. how to remove \x00 ?
Last updated: 2023-12-06

Post by fazlinda on AWS IoT core CODESYS ^{CODESYS Forge talk (Post)}
Hi, Im having a problem sending a data from my structure text code from codesys to aws. Instead of receiving {state {reported {data: 123}}} It display {state {reported {data: 123}}}\x00 \x00 \x00 \x00 \x00 \x00 \x00 Please help me solve this issues. how to remove \x00 ?
Last updated: 2023-12-06

Post by fazlinda on AWS IoT core CODESYS ^{CODESYS Forge talk (Post)}
Hi, Im having a problem sending a data from my structure text code from codesys to aws. Instead of receiving {state {reported {data: 123}}} It display {state {reported {data: 123}}}\x00 \x00 \x00 \x00 \x00 \x00 \x00 Please help me solve this issues. how to remove \x00 ?
Last updated: 2023-12-06

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