Post by tvm on Cannot pass array of constant size to a function as a reference ^{CODESYS Forge talk (Post)}
maybe this would be a better approach, then you don't have to pass the constant at all. FUNCTION fun : INT VAR_IN_OUT arr: ARRAY[*] OF INT; END_VAR VAR lower: DINT; upper: DINT; END_VAR lower:= LOWER_BOUND(arr, 1); upper:= UPPER_BOUND(arr, 1); see here as well https://help.codesys.com/api-content/2/codesys/3.5.12.0/en/_cds_datatype_array/
Last updated: 2024-01-08

Post by timvh on Limiting Memory Access of an Array to Within its Bounds ^{CODESYS Forge talk (Post)}
Add the object "POU for Implicit Checks" to your application, then select "Bounds check". This will create a function which is automatically called each time an array is write accessed. In the function you can handle "out of bounds" situations. By default it will be limited to its lower or upper bound.
Last updated: 2024-03-06

Post by bjarne-pagaard on Multiple WebVisu ^{CODESYS Forge talk (Post)}
You can use the switch frame variable, but there should be a variable for each active visu user. You can put the switch frame variable in an array, and use CURRENTCLIENTID as index into the array to get what you want. The CURRENTCLIENTID is assigned to new users automagically by the Visu Management.
Last updated: 2024-03-14

Post by timvh on Configuring a 2's compliment ^{CODESYS Forge talk (Post)}
You could create a DUT of the Type Union and add an array of 2 bytes + an Int. Then write the byte values in the array of the Union and read the Int. Or VAR iInt : INT; byHigh : BYTE := 2#1111_1111; byLow : BYTE := 2#1111_1111; END_VAR iInt := TO_INT(byHigh*16#100 + byLow);
Last updated: 2024-09-28

Post by mxj262 on FB having single input but initialized with Array ^{CODESYS Forge talk (Post)}
I am adding elements of an ARRAY using pointer to access each element inside a FOR loop and the FOR loop does not stop! What is the right way to use pointers in such case?? I have another loop that is not using pointer and it stops but the loop using pointer keep on adding. METHOD FB_Init: BOOL VAR_INPUT bInitRetains: BOOL; // TRUE: the retain variables are initialized (reset warm / reset cold) bInCopyCode: BOOL; // TRUE: the instance will be copied to the copy code afterward (online change) END_VAR VAR_IN_OUT // basically REFERENCE TO window_buffer: ARRAY [*] OF INT; // array of any size END_VAR THIS^.windowPtr := ADR(window_buffer[0]); THIS^.windowSize := UPPER_BOUND(window_buffer, 1) - LOWER_BOUND(window_buffer, 1) + 1; FUNCTION_BLOCK FB500 VAR_INPUT END_VAR VAR_OUTPUT END_VAR VAR windowPtr: POINTER TO INT; windowSize: DINT; currentIndex: UINT; element1:INT; element2:INT; i:INT; j:INT; sum:DINT:=0; END_VAR element1:=windowPtr[0]; // read the first element of the Array dynamic memorry element2:=windowPtr[1]; FOR i:=0 TO (TO_INT(windowSize-1)) BY 1 DO // this loop does not stop Sum:=sum + windowPtr[i]; END_FOR FOR j:=0 TO 5 BY 1 DO // this loop stops j:=j+1; END_FOR https://ibb.co/k3DhkZT
Last updated: 2024-05-06

Post by peterned on Array to String ^{CODESYS Forge talk (Post)}
max. string length in Codesys is 255 chars. It's not possible to cram 20,000 things in a string. If you need to send the data to another device, send the whole data[] array (as byte array, without doing anything to it) and extract the information on the other end. As each struct member has a fixed size (81 bytes, as per you declaration), this will be easy. To save some resources, consider declaring string lengths - e.g. if the max possible length for key is 10 chars, declare it key: STRING(10); and it will occupy 11 bytes instead of 81
Last updated: 2024-07-20

Post by simover on TCP/IP client ^{CODESYS Forge talk (Post)}
I want to send a string to a tics TCP/IP server. I got i working with the Net Base lib. for communication good with this tcis i need to by array of byte I want to include a string in the third position of the array TCIS_Send[1] :=254; //this valus is fix for evry communication TCIS_Send[2] :=80; //this valus is fix for evry communication TCIS_Send[3] := ; here I put my and my string is lik this 5806509-DRAP10#AB#3452302073 TCIS_Send[4] :=252; //this valus is fix for evry communication
Last updated: 2023-12-18

Post by mgabryel on Problems with CAN 2.0 comunication on Wago PLC (Codesys 3.5) ^{CODESYS Forge talk (Post)}
Hello, I am trying to program CAN Bus comunication on WAGO PLC (more precisely on WAGO Touch Monitor model TP600). I am using for this purpose library "WagoAppCanLayer2" from Wago company. My IDE for programming this device is CODESYS V3.5 SP19 Patch 2 + (64-bit). My program is written in Structured text using function blocks from previously mentioned library. Here is code of this program: 1) Variables declarations: PROGRAM PLC_PRG VAR oOpenInterface : WagoAppCanLayer2.FbCanL2Open :=( udiBaudrate := 125000 ); xInterfaceIsOpen : BOOL; sInterfaceInfo : STRING; oReceive : WagoAppCanLayer2.FbCanRx29BitFrame :=( xBufferMode := FALSE, wCanId := 16#181 ); xRecv : BOOL; sReceiveInfo : STRING; oSend : WagoAppCanLayer2.FbCanTx29BitFrame :=( dwCanId := 16#100, //was 16#201 xRtrFrame := FALSE ); xSend : BOOL; sSendInfo : STRING; oCanDiag : WagoAppCanLayer2.FbCanErrorInfo; xRst : BOOL; aSendData : ARRAY [1..8] OF BYTE; bSendLen : BYTE; TON_0 : TON; TON_1 : TON; END_VAR 2) Program body: oOpenInterface( xEnable := NOT xInterfaceIsOpen, I_Port := IoConfig_Globals.WAGO_CAN_LAYER2_DEVICE ); sInterfaceInfo := oOpenInterface.oStatus.GetDescription(); xInterfaceIsOpen S= oOpenInterface.xValid AND NOT oOpenInterface.xError; oReceive( xEnable := xInterfaceIsOpen, I_Port := IoConfig_Globals.WAGO_CAN_LAYER2_DEVICE, xRxTrigger := xRecv ); sReceiveInfo := oReceive.oStatus.GetDescription(); IF NOT xRecv THEN IF oReceive.bRxNBytes > 0 THEN oReceive.aRxBuffer[1]; oReceive.aRxBuffer[2]; oReceive.aRxBuffer[3]; oReceive.aRxBuffer[4]; oReceive.aRxBuffer[5]; oReceive.aRxBuffer[6]; oReceive.aRxBuffer[7]; oReceive.aRxBuffer[8]; END_IF xRecv := TRUE; END_IF aSendData[1] := 224; aSendData[2] := 13; aSendData[3] := 14; aSendData[4] := 15; aSendData[5] := 222; aSendData[6] := 13; aSendData[7] := 14; aSendData[8] := 15; bSendLen := 8; TON_0(IN:= NOT TON_1.Q, PT:= T#2S , Q=>xSend, ET=> ); TON_1(IN:= TON_0.Q, PT:= T#2S , Q=>, ET=> ); oSend( xEnable := xInterfaceIsOpen, I_Port := IoConfig_Globals.WAGO_CAN_LAYER2_DEVICE, aTxBuffer := aSendData, bTxNBytes := bSendLen, xTxTrigger := xSend ); sSendInfo := oSend.oStatus.GetDescription(); oCanDiag( xEnable := TRUE, I_Port := IoConfig_Globals.WAGO_CAN_LAYER2_DEVICE, xTriggerResetCounter := xRst, xValid=> , xError=> , oStatus=> , wBusState=> , wBusDiag=> , uiRxOverflowsL2=> , uiTxOverflowsL2=> , uiRxOverflows=> , uiMsgTimeouts=> , uiBusOffs=> , uiBusWarnings=> ); Program first opens comunication on CAN 2 device and then periodically try send one CAN data frame. After starting program CAN 2 interface is properly open. The xSend variable is toggling with period 2s. When program sends data an "Tx overflow" error appears. When I am watching CAN_H line on DSub 9 socket i am not able to see proper CAN frames - see screenshot attached to this message. Could somebody help me determine what is wrong with this program. Best regards
Last updated: 2024-08-02

Post by timvh on Sorting array of any-sized structure ^{CODESYS Forge talk (Post)}
Look all the way at the end of the link below. This provides a way to use arrays with various lengths: https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_datatype_array.html
Last updated: 2023-08-18

Post by jegerjon on Find index based on values ^{CODESYS Forge talk (Post)}
Hi, I need to figure out witch indexes of an Array containing the highest and lowest values. Typically search for the 5 lowest values and result the indexnumbers containing the 5 lovest values. is there a library for this, or codeexample?
Last updated: 2023-08-20

Post by jegerjon on Find index based on values ^{CODESYS Forge talk (Post)}
Hi, I need to figure out witch indexes of an Array containing the highest and lowest values. Typically search for the 5 lowest values and result the indexnumbers containing the 5 lovest values. is there a library for this, or codeexample?
Last updated: 2023-08-20

Post by naidureginald on creating a visualization table ^{CODESYS Forge talk (Post)}
hi all im trying to create a visualisation table for a axis alarms list. upon entering the data array, i recieve a message as attached. any help would be much appreciated.
Last updated: 2024-01-03

Post by apurv on Cannot pass array of constant size to a function as a reference ^{CODESYS Forge talk (Post)}
Could not find the solution to this issue but I have side stepped this by creating a global variable MAX_SIZE.
Last updated: 2024-01-08

Post by gurkan on OPCUA array max length? ^{CODESYS Forge talk (Post)}
2000 works. When testing with UA Expert there is a timeout from the OPCUA Server when trying to subscribe to the variable CPU do not seems to be to affected. The memory(RAM) however is building up
Last updated: 2024-02-19

Post by rafaelbrito on Error while processing the visualization: Client id not present or no longer valid ^{CODESYS Forge talk (Post)}
I'm having the same problem after configuring array in Alarm Group (I configured only one item per line, since Alarm Group does not work with structures / arrays). Can someone help us?
Last updated: 2024-02-20

Post by rafaelbrito on Error while processing the visualization: Client id not present or no longer valid ^{CODESYS Forge talk (Post)}
I'm having the same problem after configuring array in Alarm Group (I configured only one item per line, since Alarm Group does not work with structures / arrays). Can someone help us?
Last updated: 2024-02-20

Post by rafaelbrito on Error while processing the visualization: Client id not present or no longer valid ^{CODESYS Forge talk (Post)}
I'm having the same problem after configuring array in Alarm Group (I configured only one item per line, since Alarm Group does not work with structures / arrays). Can someone help us?
Last updated: 2024-02-20

Post by rafaelbrito on Error while processing the visualization: Client id not present or no longer valid ^{CODESYS Forge talk (Post)}
I'm having the same problem after configuring array in Alarm Group (I configured only one item per line, since Alarm Group does not work with structures / arrays). Can someone help us?
Last updated: 2024-02-20

Post by dominggus on Recipe Manager - RecipeManCommands, load & write wrong values, Bug? ^{CODESYS Forge talk (Post)}
I've workaround it by not using an array but 30 instances of the struct and putting these in the recipe, and then using converter functions to save and load
Last updated: 2024-03-02

Post by kuuki on Losing focus of variable ^{CODESYS Forge talk (Post)}
Hi. Does anyone know how to fix a problem with losing focus of a variable in FBD editor. Sometimes when trying to edit variable name, array index, etc. in network, editor randomly exits "text edit mode" and variable is replaced by text you were typing.
Last updated: 2024-03-26

Post by damian177 on Raspbery Pi and Calendar ^{CODESYS Forge talk (Post)}
Hi, In my visualisation I have a "Calendar" control. I would like save day and month which will be clicket by operator on this control . forexample save in string array. How do this ?
Last updated: 2024-04-23

Post by damian177 on Visualization - table element ^{CODESYS Forge talk (Post)}
Hi, In my application I use table elemnt with filled by STRING ARRAY. I would like to implement the following functionality : When I click on second row, that this row will be cleared. Anyone can help me?
Last updated: 2024-04-25

Post by mxj262 on FB having single input but initialized with Array ^{CODESYS Forge talk (Post)}
Ok yes now the loop has stopped when I set sum to zero before the for loop. Why will it retain the sum value from the last call?
Last updated: 2024-05-06

Post by drml on Array to String ^{CODESYS Forge talk (Post)}
If a size is not specified, CODESYS allocates 80 characters by default for a string. After 7 seconds, does your Json_string contain all of your 20000 key/values? Or is the result truncated to 80 characters?
Last updated: 2024-07-19

Post by mmpl on Array to String ^{CODESYS Forge talk (Post)}
Hi Thank you for you reply. Yes I can concatenat longer string. I am using string_Util_Intern libraray for concat. The issue is abot plc performance. It takes 7 second. I am looking to improve time.
Last updated: 2024-07-23

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