Post by chrisdeloglos on Network Variables not updating ^{CODESYS Forge talk (Post)}
Thanks for the comment. I'm using Weidmueller UC20-WL2000-AC's and changing the broadcast address to match the current subnet this worked for me as well!
Last updated: 2025-01-27

Post by ojz0r on Multiple applications on one device sharing variables. ^{CODESYS Forge talk (Post)}
One thing you could do is create an object with the variable as field with a function and procedure to get the variable (read) and set the variable (write). These are then called from your program and the vizualization.
Last updated: 2025-02-20

Post by bingo on PLC Shell commands via ST Code ^{CODESYS Forge talk (Post)}
For a permanent change, you may need to update the PLC configuration file or set the IP at startup using retained variables.
Last updated: 2025-03-02

Post by tvm on Passing properties as VAR_IN_OUT variables. ^{CODESYS Forge talk (Post)}
Use a VAR_INPUT for properties. The reason for the error is that you can't get a reference to a property. Using a VAR_INPUT will copy the property to an input variable.
Last updated: 2025-03-06

Post by nonstop-cat on Problem of assigning physical addresses to variables of type ARRAY OF ARRAY as MW and QW ^{CODESYS Forge talk (Post)}
Array writing method error,,,<arrayname>: ARRAY [<ll1>..<ul1>, <ll2>..<ul2>, <ll3>..<ul3>]</ul3></ll3></ul2></ll2></ul1></ll1> OF <basedatatype></basedatatype></arrayname>
Last updated: 2025-03-31

Post by nonstop-cat on Problem of assigning physical addresses to variables of type ARRAY OF ARRAY as MW and QW ^{CODESYS Forge talk (Post)}
Array writing method error,,,<arrayname>: ARRAY [<ll1>..<ul1>, <ll2>..<ul2>, <ll3>..<ul3>]</ul3></ll3></ul2></ll2></ul1></ll1> OF <basedatatype></basedatatype></arrayname>
Last updated: 2025-03-31

Post by stribor on Passing properties as VAR_IN_OUT variables. ^{CODESYS Forge talk (Post)}
if i only use it as input variable I won't be able to update its state within the visu object. Lets say i have real value as a property, i would like the slider object to display this value and also modify it.
Last updated: 2025-04-30

Post by fleaplc on Symbol Configuration to be Build every time! ^{CODESYS Forge talk (Post)}
I'm using Symbol configuration to share PLC variables with SCADA via 3S protocol (Symbol File). All is working fine except every time I open the project.. then I need to rebuild Symbol Configuration! Why?
Last updated: 2025-05-23

Post by davidbo on AC_Datalog DataLogChannel Save Cyclic is not working ^{CODESYS Forge talk (Post)}
"Save Cyclic" is set to 30s, but in my log I can see my variables are logged every 500ms which equals the cyclic time for my Task. Why is "Save Cyclic" ignored
Last updated: 2025-07-11

Post by pernockham on Persistence Manager: Config File not found? ^{CODESYS Forge talk (Post)}
Ok, think I understand. The reason for the error is I try to include complex variables (FB) in the persistenced data. I will try to use {attribute 'ac_persist_exclude'} to exclude those elements.
Last updated: 2025-08-22

Post by open on How to create a stopwatch? ^{CODESYS Forge talk (Post)}
Thanks everyone for your input, I am using persistent variables to retain the timer value after machine shutdown, and main task to be as low as possible for the seconds TON to be accurate.
Last updated: 2023-12-14

Post by lipton on Safety Cross-communication with network variables ^{CODESYS Forge talk (Post)}
I am currently engaged in research for a Codesys project that involves the establishment of communication between two or more Codesys safety controllers using safe communication protocols, would it be possibole ? /Best Regards
Last updated: 2023-12-29

Post by matt-s on HMI Pushbutton/Move Instruction ^{CODESYS Forge talk (Post)}
I know, that is not the issue though. The issue is the HMI_Blower_Auto_PB variable not changing to false. I do not have the IO modules plugged in yet, that is why there are NaN values for those variables. That should not affect this.
Last updated: 2024-01-25

Post by ben1 on HMI Pushbutton/Move Instruction ^{CODESYS Forge talk (Post)}
Hey mate, did you get to the bottom of this? If not, have you double checked the buttons are linked to the correct variables and/or performing the correct action? Have you tried always enabling the block to confirm false is moved to the variable if so?
Last updated: 2024-02-01

Post by macros8 on Visualization using methods and cyclic ST-calls ^{CODESYS Forge talk (Post)}
Have you found the way how to call any function in case the visu is opened? Like on event when the screen is opened to initialize some variables etc.? I can´t... :/
Last updated: 2024-03-01

Post by eschwellinger on EtherCAT drive not moving ^{CODESYS Forge talk (Post)}
you need to switch to a realtime capable plc. Do not map variables, this will be done by the SoftMotion. And check the Ds402 parameters in the generic parameterview on the Softmotion Connector.
Last updated: 2024-03-05

Post by sumit on Not able to see input data coming from eip adapter on codesys ^{CODESYS Forge talk (Post)}
Yes, green icon is there, this time I tried by enabling the device to always update variables but results are the same. I have attached the screenshot and eds file I am using.
Last updated: 2024-03-06

Post by trycyclepower on Only single ehternet ip drive is communicating ^{CODESYS Forge talk (Post)}
Hi all, I have two ethernet IP drives not communicating together. If I disable one, then other one starts working. ENIPScnannerIOTak cycle is setup as 20ms. Also, PLC updating variables setting is on.
Last updated: 2024-03-08

Post by nano on Functional block ^{CODESYS Forge talk (Post)}
u can use internal variables by passing it thru setter/getter. thats the way to go. for that add it by rightclick on fb and create propertie
Last updated: 2024-04-17

Post by gseidel on Warning C0564 when compiling CNC project with variables program ^{CODESYS Forge talk (Post)}
Hi Fless, thanks for your report! We created an issue in our bug tracker (SM-5109) and will have a look at this issue. Best regards, Georg
Last updated: 2024-04-30

Post by tvm on Timer On Vijeo ^{CODESYS Forge talk (Post)}
Vijeo doesn't support TIME variables, so the easiest thing to do is convert to a STRING in your program, and use that variable. You could use TimeAsString:= TIME_TO_STRING(TimeVar) to get a string that looks like this: T#5h10m45s200ms
Last updated: 2024-05-07

Post by gseidel on MC_Phasing state explenation ^{CODESYS Forge talk (Post)}
Hi kenth1973, no, we do not have this kind of information on internal variables. iPhasingState has been removed and is no longer present in current versions of SoftMotion. Best regards, Georg
Last updated: 2025-12-17

Post by hannibal on Codesys Trend - setting Y axis minimum and maximum as variables - error ^{CODESYS Forge talk (Post)}
Hi, It was my fault. I was using a REAL variable instead of INTEGER. Sorry for posting this.
Last updated: 2026-03-22

Post by andrea199403 on Assigning Modbus addresses to a structure in a dynamic way ^{CODESYS Forge talk (Post)}
Hello everyone, I am new to this forum and I am also new to Codesys programming. My problem is this: I have a STRUCT of 64 bool and 30 real, this STRUCT is assigned in the programme 9 times. Now I need to communicate with an HMI via Modbus and I have defined the slave device and created the holding registers for communication. I would like to declare the first call of the STRUCT on the Modbus registers %QX2000.0 to %QX2007.7 for the booleans and on the registers %QW1004 to %QW1034 for the real registers. That said, I would like to change an index and set an offset of 100 bytes for the calls of the other 8 assignments, so that the result is: %QX2100.0 to %QX2107.7 for the booleans and on the %QW1104 to %QW1134 registers for the Real registers, etc. Is there a way to declare this? Thank you very much.
Last updated: 2025-10-21

Post by george32 on CSV file and string manipulation. ^{CODESYS Forge talk (Post)}
Dear folks, I think I have a rather simple question but I could not find the right answer to my question: I have made with Excel a CSV file where I would like to have some general data regarding my program variables. I have made an program what let me read the file. The string I am currently get is at follows: 'IP_Adres;192.168.45.12$R$NPort_number;2000$R$NCycle_time;43$R$NStart_Standard_IO;20$R$N' Now I want to split the string in multiple part, which I later would connect to the right variable. By Google and experimenting I have reached to the following code for the first part of the splitting proces: // Splitting the BOM of the string: Received_string := FileReadString; IF LEFT(STR:=New_string,3)= '' THEN Received_string_without_BOM :=RIGHT(STR:= Received_string,SIZE:= (LEN(STR:= Received_string))-3); END_IF //Splitting the remaining string in part for later declaration. WHILE index = 0 DO index_split_part := FIND(STR1:= Received_string_without_BOM,STR2:= '$R$N'); Part_of_String[index]:=LEFT(STR:=Received_string_without_BOM, SIZE:= index_split_part); index := index + 1; END_WHILE However in the splitting proces I could not understand what is really happening. I understand that the Find() function returns the first value the $R$N in the Received_string_without_BOM. This would mean that the index_split_part := 23 I|P| _ |A |d|r|e|s|;|1_|9 |2 |. |1 |6 |8 |. |4 |5 |. |1 |2 |$ |R |$ |N |P | 1|2| 3 |4 |5|6|7|0|9|10|11|12|13|14|15|16|17|18|19|20|21|22|23|24|25|26|27| So the next part is to read the first 23 characters of the Received_string_without_BOM with the LEFT() function. I expected that the outcome the following was: 'IP_Adres;192.168.45.12$'. However the outcome is: 'IP_Adres;192.168.45.12$R'. I do not understand where the R after the $ sign comes from, because its place is 24 so it would not be added to the part_of the_string[index]. If I hard coded value 24 for the size it gives me the following return: 'IP_Adres;192.168.45.12$R$N'. I would expect everything till the R but the code adds the $N also to the string. I hope someone could explain to my what I am seeing wrong in my point of view? With kind regards, George
Last updated: 2024-09-27

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