Post by acc00 on Main Task cycle too long leading to PLC Fail ^{CODESYS Forge talk (Post)}
I have 2 Wago PFC200 PLC, running with Runtime SP19 Patch 5, with the Redundant application. The PLC communicates as Modbus Master with at this moment 15 Modbus Slaves -later there will be 28 in total- (Drives, Power management units,...). These devices are connected in 2 rings (1 ring of Drives, 1 ring of Power Management units), with 2 Managed Moxa Switches being part of the ring. Each PLC is connected to one of these switches. The issue I'm encountering is that the Cycle time of the Active PLC goes very high when I'm closing the Drive ring (simulating an issue on one Cabinet supply, resulting in that one Drive shut down, which can happen on field quite often). As a result of this long cycle, the PLC fails and goes to Exception, and the Passive PLC does not take control of the system. A normal cycle is around 30ms for the Main task, and a few ms for the Ethercat task. When I monitor with Profiler, I see that in this Maximum Cycle, the main Task is only taking 13ms, so I'm not sure where the PLC is hanging for so long. Is the remaining cycle time the Redundant management/sync or something else? Thank you in advance.
Last updated: 2024-03-08

Post by wbj0t on mobus tcp slave device. read/write holdings with 2 variables. ^{CODESYS Forge talk (Post)}
Hi there. I have an issue to read and set time for the controller. In the issue many registers described as writable by 6/16 functions, and, in this time, also(!) readable! For example: I have time registers: min, hour, day, mon, year. By specifications it is possible check time (so I need always update these varibles in loop) and set time by writing these same registers, BUT how to set, if they will immediatle updated by current time after writing? So, I need to separate one address at two variables. I have seen option mark: Overlay of the process image by the holding and input register. I understand this so: When I READ by function 3, I will get variable that connected with the same INPUT address and when I WRITE by 6/16 this will change second variable that connected with HOLDING address. BUT, this mark doesnt work, when I write 6/16 and try to get by function 3, I will get written value instead INPUT variable. So, what to do?
Last updated: 2024-03-20

Post by squiggleypuff on Can't Add New Version of Modbus TCP Master ^{CODESYS Forge talk (Post)}
I'm having a tough time trying to get Modbus working on a Festo CPX-E PLC; it throws these pre-compiler errors as soon as I add in my Modbus TCP Master 3.5.12.30 to my project: I'm confused about the C0046 error, as I have IODrvModbusTCP 4.3.0.0 Library installed. So I thought maybe I needed to use the newest Modbus TCP Master 4.3.0.0, which is in my device repository: However, whenever I go to add this underneath the Ethernet adapter (which is version 4.2.0.0), the only TCP Master version available is the old 3.5.12.30 one, even if I have Display all versions checked.: I even went so far as to delete the old version, but then there were no options to add a Modbus TCP Master under my Ethernet adapter. What needs to be done to use the newest Modbus TCP Master? Or are these pre-compiler errors unrelated and I'm missing something? Any help greatly appreciated.
Last updated: 2024-04-04

Post by tim-roelant on Problem mit control runtime V3 und profinet ^{CODESYS Forge talk (Post)}
Hallo Edwin, meinst du das der control-win nicht wie SPS verwendet werden kann? Das program ist klein, und realtime brauch ich gar nicht, Es gibt im bus einem Turck inselstation mit 16 ein und ausgange, und ein MTS linearencoder, womit wir teile messen und abschneiden. Die cycluszeit reist auch nicht aus. Processorleisung bleibt unter 20%. Es geht mir darum das der profinet master in fehler geht, und nicht mehr seine telnehmer erkannen kann. Es kan passieren nach 10 minuten, aber auch nach 5 tage. Nur ein kaltstart bringt die bus wieder am laufen. (kein reconnect mochlich, auch die bus scannen functioniert nicht mehr) Wann ich aber ein ipscan durchfure mit Angryip auf der rechner sind alle telnehmer da. Ich habe noch eine andere application mit die gleiche anwendung, aber wo ein raspberry pi die SPS rolle spielt, und das functioniert einwandfrei. Soll ich fielleicht das OS von Rechenr nach linux umrusten? Der operator ist im moment sehr unzufrieden mit die "upgrade" von maschine... :-( lg Tim
Last updated: 2024-04-11

Post by tim-roelant on Problem mit control runtime V3 und profinet ^{CODESYS Forge talk (Post)}
Hallo Edwin, meinst du das der control-win nicht wie SPS verwendet werden kann? Das program ist klein, und realtime brauch ich gar nicht, Es gibt im bus einem Turck inselstation mit 16 ein und ausgange, und ein MTS linearencoder, womit wir teile messen und abschneiden. Die cycluszeit reist auch nicht aus. Processorleisung bleibt unter 20%. Es geht mir darum das der profinet master in fehler geht, und nicht mehr seine telnehmer erkannen kann. Es kan passieren nach 10 minuten, aber auch nach 5 tage. Nur ein kaltstart bringt die bus wieder am laufen. (kein reconnect mochlich, auch die bus scannen functioniert nicht mehr) Wann ich aber ein ipscan durchfure mit Angryip auf der rechner sind alle telnehmer da. Ich habe noch eine andere application mit die gleiche anwendung, aber wo ein raspberry pi die SPS rolle spielt, und das functioniert einwandfrei. Soll ich fielleicht das OS von Rechenr nach linux umrusten? Der operator ist im moment sehr unzufrieden mit die "upgrade" von maschine... :-( lg Tim
Last updated: 2024-04-11

Post by timo on Visu: Angepasster Button mit Statusanzeige - welche Möglichkeiten gibt es? ^{CODESYS Forge talk (Post)}
Hallo, Ich gehe gerade Möglichkeiten durch, wie ich Buttons so erstellen kann, dass ich sie nachträglich möglichst einfach bearbeiten kann um z.B. die Farben des Aktiven/Inaktiven Zustandes darzustellen. Die Buttons bestehen aus einem Hintergrund als Farbverlauf, einem Text und einem Icon. Ich habe zuerst den ESC Image Button verwendet, aber auch hier müsste ich nacheinander alle Buttons bearbeiten, wenn ich z.B. die Hintergrundfarbe anpassen will. Jetzt habe ich die Buttons als einzelne Visualisierungen erstellt und in der Visu jeweils als Frames eingeblendet. Den Zustand kann ich dann durch unsichtbare Elemente in der Buttonvisu darstellen. Weil hinter jeder Buttonvisu ein Frame meines Hintergrundes liegt, kann ich die einfach anpassen. Siehe Bild- der Frame ist der graue Hintergrund, das Rechteck ist die Umrandung für den Status mit einer transparenten Füllfarbe. Gibt es da eine einfachere Möglichkeit die Elemente zu verknüpfen, sodass ich einen Button habe, den ich nachträglich möglichst einfach abändern kann? Bei den Buttons bei denen ich keine Icons einblende, kann ich direkt den Text auf den Hintergrundframe setzen. Wenn ich hier aber das farbige Randungsrechteck für den Status über das Frame liege, verdeckt es diesen natürlich. Gibt es eine Möglichkeit Elemente so einzublenden, dass dahinter liegende Elemente angeklickt werden können? Alternativ muss ich die Aktion auch noch mit dem überlagertem Element verknüfen.
Last updated: 2024-04-22

Post by phoward131 on Alarm State Icon ^{CODESYS Forge talk (Post)}
I am trying to create an icon on an overview screen that depicts if an alarm group has active alarms, active acknowledged alarms, or inactive unacknowledged alarms (waiting for confirmation). I've attempted to set up Notification Actions in the Alarm Class to set variables based on state changes but have been unable to find a clean and effective way to do this. Because an action on any alarm will trigger the variable to be set as instructed, I'm struggling to find a way to configure it for what I need (ie if two alarms activate, then one deactivates, the variable for indicating an alarm is active would be cleared after the single deactivation). I've been pointed toward the Alarm Manager example project but I'm finding it too complicated to understand how to implement it in my own project. Has anyone come up with another good way to indicate the states of alarms or a simpler usage of the Alarm Manager functions?
Last updated: 2024-04-23

Post by culius on JSON ^{CODESYS Forge talk (Post)}
Hey guys, I am trying to write a JSON. First time after login in PLC after download everthing works. But when I want to change values during runtime and try to recreate the JSON nothing happens. When forcing the xStart as an impulse i want to recreate it and see 2 as Key3 instead of 1 from the first run. Any Idea how to make this work? PROGRAM test VAR factory : JSON.JSONDataFactory; eDataFactoryError : JSON.FBF.ERROR; pJsonData : POINTER TO JSON.JSONData := factory.Create(eError => eDataFactoryError); fb_JBuilder : JSON.JSONBuilder; wsValue : WSTRING; diRootIndex, diObject1Index : DINT; iValue : INT; jsonArrayWriter : JSON.JSONByteArrayWriter; wsJsonData : WSTRING(1000); xFirst : BOOL := TRUE; END_VAR IF xFirst THEN fb_JBuilder(pJsonData := pJsonData, diRootObj => diRootIndex); wsValue := "Value1"; fb_JBuilder.SetKeyWithValue("Key1", wsValue, diParentIndex := diRootIndex); diObject1Index := fb_JBuilder.SetKeyWithObject("Key2", diParentIndex := diRootIndex); iValue := iValue + 1 ; // -----------!!! secound run should increment key3!!!!------------ fb_JBuilder.SetKeyWithValue("Key3", iValue, diParentIndex := diObject1Index); xFirst := FALSE; END_IF jsonArrayWriter(xExecute := TRUE, pwData := ADR(wsJsonData), udiSize := SIZEOF(wsJsonData), jsonData := pJsonData^, xAsyncMode := FALSE); Kind Regards
Last updated: 2024-04-30

Post by rmaas on Strange Behavior on Raspberry Pi ^{CODESYS Forge talk (Post)}
Hello, what you are seeing is not strange behavior. The problem is that everyting is happening in the same program cycle. After the variable Stepnumber is changed from 10 to 20 for example then you want the program to wait with the next EQ until the next program cycle. Else every EQ will be be true because in every line the variable Stepnumber is increased. When the program arrives (still in the same cycle) at the line with the timer, the Stepnumber has been increased to 30 in the meantime and the timer will allway be ON because even though the variable is written to 10 in this line in the next cycle it starts with 10 and will be 30 again before reaching the timer in line 8. Not very good at explaining stuff but i hope you get the problem. See screenshot below for an example of one way you could solve this...
Last updated: 2024-06-18

Post by svenkaro on Codesyscontrol.service stoppt nach 30s ^{CODESYS Forge talk (Post)}
Wie Du schon vermutet hast, es meint, die Hardware/Firmware sei nicht kompatibel ... ooops... this runtime was built for RASPBERRYPI. Hardware version or firmware version not supported! (-18, 0x00000BB8, 0xFFFFFFFB) Architecture: aarch64 Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Vendor ID: ARM Model name: Cortex-A72 Model: 3 Thread(s) per core: 1 Core(s) per cluster: 4 Socket(s): - Cluster(s): 1 Stepping: r0p3 CPU(s) scaling MHz: 40% CPU max MHz: 1500.0000 CPU min MHz: 600.0000 BogoMIPS: 108.00 Flags: fp asimd evtstrm crc32 cpuid Caches (sum of all): L1d: 128 KiB (4 instances) L1i: 192 KiB (4 instances) L2: 1 MiB (1 instance) Vulnerabilities: Gather data sampling: Not affected Itlb multihit: Not affected L1tf: Not affected Mds: Not affected Meltdown: Not affected Mmio stale data: Not affected Retbleed: Not affected Spec rstack overflow: Not affected Spec store bypass: Vulnerable Spectre v1: Mitigation; __user pointer sanitization Spectre v2: Vulnerable Srbds: Not affected Tsx async abort: Not affected Allerdings habe ich schon reichlich Firmware versionen getestet.
Last updated: 2024-06-21

Post by joachimk on Profinet Controller IP-Adresse ändern ^{CODESYS Forge talk (Post)}
Die IP-Adresse des Profinet-Controllers soll zur Laufzeit geändert werden. Dabei handelt es sich um eine Anwendung auf einem PC mit einer Standard-Ethernetschittstelle (ControlWinV3+WinPcap). Die Datei "CODESYSControl.cfg" wurde dazu angepasst: .... Adapter.0.Name="Ethernet 4" Adapter.0.EnableSetIpAndMask=1 Die konfigurierte IP-Adresse wird zur Laufzeit an die tatsächliche IP-Adresse der Netzwerkschnittstelle mit dem folgenden Befehl angepasst (die Änderung von 192.168.2.33 auf 192.168.2.34 funktioniert auch): Ethernet.UpdateConfiguredIPSettings(IpAddress:=Ethernet.IPAddress, subnetmask:=Ethernet.Subnetmask, gateway:=Ethernet.GatewayAddress); Der Profinet-Controller geht danach auf Störung und gibt die folgende Fehlermeldung aus: "Controller-Status: currently active IP does not match the controller's configuration" Unter "Ethernet diagnostic information" kann man die geänderte IP-Adresse von 192.168.2.34. Ethernet läuft auch ohne Fehler. Unter "PROFINET IO Driver diagnostic information" -> "IPParameter" sieht man noch die alte (konfigurierte) IP-Adresse 192.168.2.33. Wie kann man die Störung beseitigen? Leider habe ich keine Methode zum Ändern der IP-Adresse auf dem Profinet-Controller gefunden? Reconfiguration des Profinet-Controllers?
Last updated: 2024-06-27

Post by jonasz on Deploy LicenseServer for Linux SL ^{CODESYS Forge talk (Post)}
So here's how: I manually installed the following packages: codemeter-lite_8.30.6885.501_amd64.deb codesyslicenseserver_licenseserver_4.18.0.0_all.deb codesyswbmbase_wbmbase_4.18.0.0_all.deb codesyswbmlicensing_wbmlicensing_4.18.0.0_all.deb Of course, the license server appeared immediately. Trying to install it again using Install in the Deploy tab, the same error appears. Of course, the information that such a server is already installed is also there. Configuring PLC, S_PLC, EDGE, and SAFE_TIMER_PROVIDER went smoothly, and basically everything works. I wrote a simple program for S_PLC. I'm loading the programs into PLC and S_PLC. When loading the program into S_PLC, a message appears stating that there is no connection to the S_PLC controller. Timeout error. Restart the controller, attempt to load, and see the above. After changing the cycle time for S_PLC to 50ms, the problem no longer occurs. My question, besides the difficulty of installation for a new user, is what causes the cycle time for S_PLC to be so long, and how can I fix it?
Last updated: 2025-11-14

Post by bertus on Can't get SMC_SmoothPath to work ^{CODESYS Forge talk (Post)}
Hi Georg, thanks for your time. What is the value of D_ANGLE_TOL? It is set to 0.01. Do you need the assignment bAbort := NOT bDecoder? Does it help to leave it out? This seems to make no difference. Any errors (e.g. SMC_SmoothPath.Error/ErrorID) or PLC log messages? No errors or log messages. What if you comment out SMC_SmoothMerge and SMC_LimtiDynamics, is corner smoothing still not working? Indeed. Is bDecode written from a different task (e.g. visu)? Then I would recommend to assign to a local variable (bDecodeLocal := bDecode) and use that for all FBs. Otherwise, FBs might see different values of bDecode in a single cycle, which will cause problems. It is a local variable, written from a state machine inside this program. But there is new information: During some trial and error, I tried skipping "stage 2: merge short linear segments" (SMC_SmoothMerge). And suddenly it rounds the corners, see attached image. Looking a bit closer, I noticed that (with the original program) after a download (cold start?), it in fact did round the corners, but only once. Ever next cycle in which the NC program was executed, the corners where not rounded. Not sure if there is any relation, but SMC_SmoothMerge is also the only FB which has no bAbort input. Perhaps I need to reset it (or any buffers) by other means?
Last updated: 2025-12-18

Post by bmatlove on Re-create CoE online window in Visu ^{CODESYS Forge talk (Post)}
Hello, I am trying to re-create the CoE online window within a Visu for purposes of checking and interacting with device parameters occasionally for maintenance purposes. To minimize reliance on using the IDE for misc interactions. Ideally, I would like to exactly mimic the CoE online window within the IDE. I assume that it uses a few tricks to minimize overhead, such as only polling registers which are within the visual scope, for example. I'm afraid it might be too much to ask for a pre-built drop-in Visu module to exist for this task. Do I have any options aside from manually re-creating all the logic to do this, relying heavily on SdoInfo function blocks? Is there a way for me to reference the device ESI file to shortcut the process of determining how many registers there are and getting the address for each?
Last updated: 2025-12-27

Post by fredashbolt on Dynamically Update JSON Payload ^{CODESYS Forge talk (Post)}
I am trying to generate a JSON payload populated with a value that updates for use with a telemetry system, the payload is to be published by MQTT. I have established the MQTT client and can publish a working JSON payload but I can't get the payload to update as the value (iValue) changes. I am using a timer to trigger the .SetValue function periodically, but the JSON will only give the value as it is when it is first initialized using xFirst IF statement. Any suggestions? Thanks VAR pJsonData : POINTER TO JSON.JSONData := factory.Create(); fb_JBuilder : JSON.JSONBuilder; diRootIndex, diObject1Index : DINT; iValue : INT := 10 ; jsonArrayWriter : JSON.JSONByteArrayWriter; wsJsonData : WSTRING(1000); xFirst : BOOL := TRUE; utf8JsonData : STRING(2000); diTempVal : DINT ; PublishTimer : TON ; END_VAR IF xFirst = TRUE THEN fb_JBuilder ( pJsonData := pJsonData , diRootObj => diRootIndex ) ; diObject1Index := fb_Jbuilder.SetKeyWithObject ( "Device" , diParentIndex := diRootIndex ) ; diTempVal := fb_Jbuilder.SetKeyWithValue ( "Temp" , iValue , diParentIndex := diObject1Index ) ; xFirst := FALSE ; END_IF PublishTimer ( IN := PublishTimer.Q = 0 , PT := T#5S ) ; IF PublishTimer.Q THEN fb_JBuilder.SetValue ( iValue , diTempVal ) ; END_IF jsonArrayWriter( xExecute := PublishTimer.Q , pwData := ADR(wsJsonData), udiSize := SIZEOF(wsJsonData), jsonData := pJsonData^, xAsyncMode := FALSE ) ; JSON.Stu.ConvertUTF16toUTF8( ADR ( wsJsonData ) , ADR ( utf8JsonData ) , SIZEOF ( utf8JsonData ) , bStrictConversion := TRUE ) ;
Last updated: 2026-03-10

Post by konstantin on CAM Motion Recover after STO ^{CODESYS Forge talk (Post)}
Hello Mr. Seidel, both the master and the slave axis are modulo. Basically the situation is as follows: One master cycle is 100 units. Slave's modulo length is 2000 units. In the CAM table I defined 10 master cycles on X axis - 1000 units and on the Y axis is the slave - 2000 units. Then depending on the master position 0 to 1000 units the slave's position is plotted on the Y axis - 0 to 2000 units. For example, while the master is executing the 3rd cycle i.e. above 200 units, I trigger the STO function of the slave and it stops. The master executed his cycle but the slave was stopped during the execution. How can I set the slave to continue the CAM sequence from the point where it stopped i.e. third cycle of the master? When I reset the slave error and sync again, everyrhing starts from master's 0 position. Best Regards Konstantin Kolev
Last updated: 2026-02-13

Post by ilya-vah on Table element issues ^{CODESYS Forge talk (Post)}
Hello, First post here. I would like to clarify whether the following behavior is known or if it is a bugs. Issue 1 — First row not displayed when using Maximum array index with 1-based arrays Description: When displaying data from an array that is indexed starting from 1 (e.g., ARRAY[1..N]), and the number of displayed rows is limited using the Maximum array index property, the first row of the array is not shown in the visualization. Steps to reproduce: Create an array indexed from 1 (e.g., ARRAY[1..N]). Bind the array to a Table element. Limit the number of displayed rows using the Maximum array index property. Run the visualization. Actual result: The first array element (index 1) is not displayed in the table. Issue 2 — Tooltip string placeholder cannot be bound to string variable from array Description: It is not possible to use a string placeholder in the tooltip that is bound to a string variable from the array. Steps to reproduce: Use a table bound to an array containing string variables. Configure a tooltip using a string placeholder referencing a string field from the array. Run the visualization. Actual result: Tooltip doesn't show any text. A test project demonstrating both issues is attached. Thank you for your time and support.
Last updated: 2026-02-16

Post by risele on Modbus connection via Qronox PCD3 M6893 ^{CODESYS Forge talk (Post)}
First, if you don't need to change conversion rules in runtime, take a look at "Unit conversion" module (Application -> add object -> UnitConversion). You can specify there biderectional conversion with different units, limits and so on. Second, since MODBUS don't have "real" types but only general 16-bit registers and Real is 32-bit, generally you need a byte-was conversion Real <> two Words. Note, that depending on the devices on both sides, there are two options: Real-> Word1, Word2 or Real-> Word2, Word1, where Word1 is minor register in Modbus register pair and Word2 is major. You can use simple union: TYPE u_Real : UNION rVal:REAL; wVal:ARRAY[0..1] OF WORD; dwVAL:DWORD; //same as previous, may be easier to specify the MB register END_UNION END_TYPE and convert it as following: VAR myUnion:u_Real; rValue_TO_SEND:REAL; rValue_TO_GET:REAL; END_VAR myUnion.rVal:=rValue_TO_SEND; rValue_TO_GET:=myUnion.rVal; Note, that WORD-order should be properly set in MODBUS registers, otherwise you will get strange values. This tool is helpful: https://www.scadacore.com/tools/programming-calculators/online-hex-converter/ Alternative, you can use functions as REAL_TO_DW and DW_TO_REAL from OSCAT_BASIC, for example.
Last updated: 2026-02-19

Post by fpawlak on How to register own component - CMAddComponent() or CMAddComponent2() ^{CODESYS Forge talk (Post)}
Hi All, I wonder which way is correct or better? I would like to register my own component in order to use it in CMPLog. I can use CMAddComponent() or CMAddComponent2() to do it. The main difference is whether I provide udiCmpId myself or it will be generated by runtime. But I don't know which way is correct. Please look at those two examples below. I don't know if CMAddComponent2() is newer and then should be used? CMAddComponent() + providing my own udiCmpId //16#FFFF0000 for unknown myVendorId := 16#FFFF0000; myLibId := 1; myComponentId := myVendorId OR CMPID_IecCode OR myLibId; componentHandle := CMAddComponent(pszComponent:= 'myComponent', udiCmpId:= myComponentId, udiVersion:= 1, pResult:= ADR(result)); IF componentHandle <> RTS_INVALID_HANDLE AND result = CmpErrors.Errors.ERR_OK THEN LogAdd2( hLogger:= STD_LOGGER, udiCmpID:= myComponentId, udiClassID:= CmpLog.LogClass.LOG_ERROR, udiErrorID:= 0, udiInfoID:= 0, pszInfo:= 'myComponent regidtered succsefull.' ); ELSE LogAdd2( hLogger:= STD_LOGGER, udiCmpID:= CMPID_CmpMgr, udiClassID:= CmpLog.LogClass.LOG_ERROR, udiErrorID:= 0, udiInfoID:= 0, pszInfo:= 'Error while regidtering myComponent.'); END_IF CMAddComponent2() + udiCmpId generated by runtime componentHandle := CMAddComponent2(pszComponent:= 'myComponent2', udiVersion:= 1, udiCmpId:= ADR(myComponentId), pResult:= ADR(result)); IF componentHandle <> RTS_INVALID_HANDLE AND result = CmpErrors.Errors.ERR_OK THEN LogAdd2( hLogger:= STD_LOGGER, udiCmpID:= myComponentId, udiClassID:= CmpLog.LogClass.LOG_ERROR, udiErrorID:= 0, udiInfoID:= 0, pszInfo:= 'myComponent2 regidtered succsefull.' ); ELSE LogAdd2( hLogger:= STD_LOGGER, udiCmpID:= CMPID_CmpMgr, udiClassID:= CmpLog.LogClass.LOG_ERROR, udiErrorID:= 0, udiInfoID:= 0, pszInfo:= 'Error while regidtering myComponent2.'); END_IF
Last updated: 2026-02-27

Post by egr99 on Modbus TCP Server connection is ESTABLISHED but all holding registers are value 0? ^{CODESYS Forge talk (Post)}
Hi there, Read the above description and experienced the same: Reading coil/discrete input/input register/holding register doesn't fill the mapped I/O variable. Any suggestions? Defined (see attachment): - Ethernet (with parameters according to the used Ethernet adapter of my Windows 11 laptop) - -Modbus TCP Client - - -LOGO231 as Modbus TCP Server - - -WS242 as Modbus TCP Server (WaveShare Modbus TCP <-> RTU converter) - - - -WS242_01 as Modbus Server, COM port (slave-id 1 RTU) - - - -WS242_03 idem (slave-id 3 RTU) - - - -WS242_11 idem (slave-id 11 RTU) Writing coil/holding register works from a mapped I/O variable works fine. Verification of Modbus traffic with WireShark: QUERY to and the RESPONSE of all slave-ids are correct Status of all defined is CONNECTED, RESPONSE_SUCCESS, RUNNING etc. Request counters increase with expected frequency. Error counter = 0. (To have all counters works fine I had to change Modbus TCP Client's parameter OptimizationON to FALSE). LOGO231 works fine: values in mapped I/O conform expectation WS242 without Modbus Server, COM port and with defined channels (for only 1 slave-id possible) works fine. PLC Settings: Update I/O while in stop: I see xBusy changing from FALSE to TRUE and vice versa. Always update variables: Enabled 1
Last updated: 10 hours ago

Post by mubeta on Strange problem with the ‘MC_SetPosition’ function ^{CODESYS Forge talk (Post)}
How are the servo drives controlled? EtherCAT, step/dir pulses, other? CANOpen, 1 Mb/s, bus load 35%, cycle time 2ms. Another thought is that - if it's step/dir pulse based control - the pulses from the PLC to the drive are getting missed/lost at high frequencies? If that's the case then there would be multiple troubleshooting steps/corrections that could be investigated. Here, it seems to me that we are getting completely off track with the observed problem. You could try to create a simplified program I had already written this elsewhere. The program before being brought into machines was exhaustively tested in SW emulation and the problem did not occur. However, in emulation I was interested in checking other aspects of the process, not this specific one which is for real a correction made necessary after the fact. The part of the program that does this correction with the function mentioned in the topic, came up from its origins, but I didn't know or didn't think it was really useful. A scruple that later turned out to be necessary. However, for now I do not think I will spend any more time on this verification, already lacking any to do my normal. I remain amazed, however, that a function intended to correct the axis position with the motor in motion and that it should not interfere with this, in fact instead changes behavior as the motor speed changes. Mah! When you manually control the motor directly from the servo drive software at the speeds you are calling for, does it move precisely to the target position? The drive and motor have been working fine for about 10 years. In replacing the machine control system, I opted for CoDeSys where before there was something else. But this is not the subject of the problem. What I need to resolve is the fact that a clutch specially placed at a certain point can slip and, therefore, I have the undeniable need to phase the 'prime mover' to the mechanical position of the machine, detected by a cam for each turn, in order to properly stop at its optimum point. Which for now I have ruled out doing. In fact, if I really have to say, since we have now gone brutally OT, I originally thought that this clutch should only come into action in cases of extreme necessity, as happens in most trials. But this one, the way it is made, slips more easily than I could estimate and the servo-controlled 'prime mover,' and the machine, get out of phase, maybe by a little, but frequently, and when the machine work at it's high speed, (in fact all of the time), I can't adjust properly the 'prime mover' position at fly.
Last updated: 2025-01-18

Post by francesco86 on Script python for write in a file Project information ^{CODESYS Forge talk (Post)}
Dear all, My python script can read a Codesys project and save in file the different POU, but the problem is that I don't able to read the project info from the obj list. Following of this message there is my python script. Can you help my? Best regards Francesco # encoding:utf-8 # We enable the new python 3 print syntax from __future__ import print_function import os import shutil import time import sys from datetime import datetime print("--- Saving files in the project: ---") print("sys.argv: ", len(sys.argv), " elements:") for arg in sys.argv: print(" - ", arg) if (len(sys.argv)>1): folderExportName = sys.argv[1] print(" folderExportName: ", folderExportName) exportPath = sys.argv[2]+ sys.argv[3]+ "\\"+ sys.argv[1] print(" File path: ", exportPath) # git has_repo=False #save_folder=r'E:\Tmp\ControlPlugins\ControlPlugins\Export' save_folder = exportPath if not os.path.exists(save_folder): os.makedirs(save_folder) else: a=os.listdir(save_folder) for f in a: if not f.startswith("."): sub_path= os.path.join(save_folder,f) if os.path.isdir(sub_path): shutil.rmtree(sub_path) else: os.remove(sub_path) elif f==".git": has_repo=True info={} type_dist={ '792f2eb6-721e-4e64-ba20-bc98351056db':'pm', #property method '2db5746d-d284-4425-9f7f-2663a34b0ebc':'dut', #dut 'adb5cb65-8e1d-4a00-b70a-375ea27582f3':'lib', #lib manager 'f89f7675-27f1-46b3-8abb-b7da8e774ffd':'m', #method no ret '8ac092e5-3128-4e26-9e7e-11016c6684f2':'act', #action '6f9dac99-8de1-4efc-8465-68ac443b7d08':'pou', #pou '6654496c-404d-479a-aad2-8551054e5f1e':'itf', #interface '738bea1e-99bb-4f04-90bb-a7a567e74e3a':'', #folder 'ffbfa93a-b94d-45fc-a329-229860183b1d':'gvl', #global var '5a3b8626-d3e9-4f37-98b5-66420063d91e':'prop', #property '2bef0454-1bd3-412a-ac2c-af0f31dbc40f':'tl', #textlist '63784cbb-9ba0-45e6-9d69-babf3f040511':'gtl', #global textlist '225bfe47-7336-4dbc-9419-4105a7c831fa':'dev', #device 'ae1de277-a207-4a28-9efb-456c06bd52f3':'tc', #task configuration 'f8a58466-d7f6-439f-bbb8-d4600e41d099':'m', #method with ret '261bd6e6-249c-4232-bb6f-84c2fbeef430':'gvl', #gvl_Persistent '98a2708a-9b18-4f31-82ed-a1465b24fa2d':'task', #task '085afe48-c5d8-4ea5-ab0d-b35701fa6009':'progInfo'#project information }; def save(text,path,name,tp): if not tp: tp='' else: tp='.'+tp+'.txt' with open(os.path.join(path,name+tp),'w') as f: f.write(text.encode('utf-8')) def print_tree(treeobj, depth, path): global info #record current Path curpath=path isfolder=False t='' #text tp='' #type # get object name name = treeobj.get_name(False) id = treeobj.type.ToString() if id in type_dist: tp = type_dist[treeobj.type.ToString()] #Print all type of objects #print("--Name: ", tp) else: info[id]=name if treeobj.is_device: deviceid = treeobj.get_device_identification() t = 'type='+str(deviceid.type) +'\nid=' +str(deviceid.id) + '\nver='+ str(deviceid.version) if tp == "progInfo": print("-- There is prog info, ", tp) print("-- It has textual declaration: , ", treeobj.has_textual_declaration) print("-- It has textual implementation: , ", treeobj.has_textual_implementation) print("-- It is folder: , ", treeobj.is_folder) print("-- It is children: , ", treeobj.get_children(False)) print("-- It is children len: , ", len(treeobj.get_children(False))) print("-- It is progInfo type: , ", type(treeobj.ScriptProject)) #for child in treeobj.get_children(False): # print_tree(child, depth+1,curpath) try: if treeobj.is_folder : #system.ui.prompt('folder:'+u, PromptChoice.YesNo, PromptResult.Yes) isfolder=true pass except: pass if treeobj.has_textual_declaration : t=t+'(*#-#-#-#-#-#-#-#-#-#---Declaration---#-#-#-#-#-#-#-#-#-#-#-#-#*)\r\n' a=treeobj.textual_declaration t=t+a.text if treeobj.has_textual_implementation: t=t+'(*#-#-#-#-#-#-#-#-#-#---Implementation---#-#-#-#-#-#-#-#-#-#-#-#-#*)\r\n' a=treeobj.textual_implementation t=t+a.text if treeobj.has_textual_declaration and not treeobj.has_textual_implementation: t=t+'(*#-#-#-#-#-#-#-#-#-#---NOT Implementation visible---#-#-#-#-#-#-#-#-#-#-#-#-#*)\r\n' if treeobj.is_task : exports=[treeobj] projects.primary.export_native(exports,os.path.join(curpath,name+'.task')) if treeobj.is_libman: exports=[treeobj] projects.primary.export_native(exports,os.path.join(curpath,name+'.lib')) if treeobj.is_textlist: treeobj.export(os.path.join(curpath,name+'.tl')) children = treeobj.get_children(False) if children or isfolder: if tp: curpath=os.path.join(curpath,name+'.'+tp) else: curpath=os.path.join(curpath,name) if not os.path.exists(curpath): os.makedirs(curpath) if t: save(t,curpath,name,tp) for child in treeobj.get_children(False): print_tree(child, depth+1,curpath) for obj in projects.primary.get_children(): print_tree(obj,0,save_folder) with open(os.path.join(save_folder,'ExportInfo.txt'),'w') as f: now = datetime.now() infTimeExecution = now.strftime("%Y-%m-%d %H:%M:%S") f.write("Export date and time: "+infTimeExecution + "\r\n" + str(info)) print("--- Script finished. ---") #system.ui.info('save ok') projects.primary.close()
Last updated: 2024-04-30

Post by francesco86 on Script python for write in a file Project information ^{CODESYS Forge talk (Post)}
Dear all, My python script can read a Codesys project and save in file the different POU, but the problem is that I don't able to read the project info from the obj list. Following of this message there is my python script. Can you help my? Best regards Francesco # encoding:utf-8 # We enable the new python 3 print syntax from __future__ import print_function import os import shutil import time import sys from datetime import datetime print("--- Saving files in the project: ---") print("sys.argv: ", len(sys.argv), " elements:") for arg in sys.argv: print(" - ", arg) if (len(sys.argv)>1): folderExportName = sys.argv[1] print(" folderExportName: ", folderExportName) exportPath = sys.argv[2]+ sys.argv[3]+ "\\"+ sys.argv[1] print(" File path: ", exportPath) # git has_repo=False #save_folder=r'E:\Tmp\ControlPlugins\ControlPlugins\Export' save_folder = exportPath if not os.path.exists(save_folder): os.makedirs(save_folder) else: a=os.listdir(save_folder) for f in a: if not f.startswith("."): sub_path= os.path.join(save_folder,f) if os.path.isdir(sub_path): shutil.rmtree(sub_path) else: os.remove(sub_path) elif f==".git": has_repo=True info={} type_dist={ '792f2eb6-721e-4e64-ba20-bc98351056db':'pm', #property method '2db5746d-d284-4425-9f7f-2663a34b0ebc':'dut', #dut 'adb5cb65-8e1d-4a00-b70a-375ea27582f3':'lib', #lib manager 'f89f7675-27f1-46b3-8abb-b7da8e774ffd':'m', #method no ret '8ac092e5-3128-4e26-9e7e-11016c6684f2':'act', #action '6f9dac99-8de1-4efc-8465-68ac443b7d08':'pou', #pou '6654496c-404d-479a-aad2-8551054e5f1e':'itf', #interface '738bea1e-99bb-4f04-90bb-a7a567e74e3a':'', #folder 'ffbfa93a-b94d-45fc-a329-229860183b1d':'gvl', #global var '5a3b8626-d3e9-4f37-98b5-66420063d91e':'prop', #property '2bef0454-1bd3-412a-ac2c-af0f31dbc40f':'tl', #textlist '63784cbb-9ba0-45e6-9d69-babf3f040511':'gtl', #global textlist '225bfe47-7336-4dbc-9419-4105a7c831fa':'dev', #device 'ae1de277-a207-4a28-9efb-456c06bd52f3':'tc', #task configuration 'f8a58466-d7f6-439f-bbb8-d4600e41d099':'m', #method with ret '261bd6e6-249c-4232-bb6f-84c2fbeef430':'gvl', #gvl_Persistent '98a2708a-9b18-4f31-82ed-a1465b24fa2d':'task', #task '085afe48-c5d8-4ea5-ab0d-b35701fa6009':'progInfo'#project information }; def save(text,path,name,tp): if not tp: tp='' else: tp='.'+tp+'.txt' with open(os.path.join(path,name+tp),'w') as f: f.write(text.encode('utf-8')) def print_tree(treeobj, depth, path): global info #record current Path curpath=path isfolder=False t='' #text tp='' #type # get object name name = treeobj.get_name(False) id = treeobj.type.ToString() if id in type_dist: tp = type_dist[treeobj.type.ToString()] #Print all type of objects #print("--Name: ", tp) else: info[id]=name if treeobj.is_device: deviceid = treeobj.get_device_identification() t = 'type='+str(deviceid.type) +'\nid=' +str(deviceid.id) + '\nver='+ str(deviceid.version) if tp == "progInfo": print("-- There is prog info, ", tp) print("-- It has textual declaration: , ", treeobj.has_textual_declaration) print("-- It has textual implementation: , ", treeobj.has_textual_implementation) print("-- It is folder: , ", treeobj.is_folder) print("-- It is children: , ", treeobj.get_children(False)) print("-- It is children len: , ", len(treeobj.get_children(False))) print("-- It is progInfo type: , ", type(treeobj.ScriptProject)) #for child in treeobj.get_children(False): # print_tree(child, depth+1,curpath) try: if treeobj.is_folder : #system.ui.prompt('folder:'+u, PromptChoice.YesNo, PromptResult.Yes) isfolder=true pass except: pass if treeobj.has_textual_declaration : t=t+'(*#-#-#-#-#-#-#-#-#-#---Declaration---#-#-#-#-#-#-#-#-#-#-#-#-#*)\r\n' a=treeobj.textual_declaration t=t+a.text if treeobj.has_textual_implementation: t=t+'(*#-#-#-#-#-#-#-#-#-#---Implementation---#-#-#-#-#-#-#-#-#-#-#-#-#*)\r\n' a=treeobj.textual_implementation t=t+a.text if treeobj.has_textual_declaration and not treeobj.has_textual_implementation: t=t+'(*#-#-#-#-#-#-#-#-#-#---NOT Implementation visible---#-#-#-#-#-#-#-#-#-#-#-#-#*)\r\n' if treeobj.is_task : exports=[treeobj] projects.primary.export_native(exports,os.path.join(curpath,name+'.task')) if treeobj.is_libman: exports=[treeobj] projects.primary.export_native(exports,os.path.join(curpath,name+'.lib')) if treeobj.is_textlist: treeobj.export(os.path.join(curpath,name+'.tl')) children = treeobj.get_children(False) if children or isfolder: if tp: curpath=os.path.join(curpath,name+'.'+tp) else: curpath=os.path.join(curpath,name) if not os.path.exists(curpath): os.makedirs(curpath) if t: save(t,curpath,name,tp) for child in treeobj.get_children(False): print_tree(child, depth+1,curpath) for obj in projects.primary.get_children(): print_tree(obj,0,save_folder) with open(os.path.join(save_folder,'ExportInfo.txt'),'w') as f: now = datetime.now() infTimeExecution = now.strftime("%Y-%m-%d %H:%M:%S") f.write("Export date and time: "+infTimeExecution + "\r\n" + str(info)) print("--- Script finished. ---") #system.ui.info('save ok') projects.primary.close()
Last updated: 2024-04-30

Post by alessandro on SysMemCmp SysMemCpy ^{CODESYS Forge talk (Post)}
VAR Data1:ARRAY[1..10] OF SINT ; Data2:ARRAY[1..10] OF SINT ; Data3:ARRAY[1..10] OF SINT ; Data4:ARRAY[1..10] OF SINT ; ex_1 : BOOL ; ex_2 : BOOL ; enable : BOOL :=0 ; END_VAR // PROGRAM // The scope of this example is compare and copy the values of two ARRAY only if some value is different using SysMemCmp and SysMemCpy. // In this 2 example we don't use a FOR cicle for do this, and pBuffer1 and pBuffer2 is just a pointer to ARRAY. See details in Library util.SysMem of Codesys // The compare funcion util.SysMem.SysMemCmp is bidirectional if Data1 chanege respect Data2 ex_1 go to 1 and if Data2 change respect Data1 also // but the copy function util.SysMem.SysMemCpy work only from source ARRAY pSrc:=ADR(Data1) to destination ARRAY pDest:=ADR(Data2) // Example 1 Full ARRAY compare and copy // This compare 2 different equal ARRAY and if there is some difference ex_1 go to 1 and if you give enable he copy Data1 in Data2 ex_1 := TO_BOOL(util.SysMem.SysMemCmp(pBuffer1:=ADR(Data1), pBuffer2:=ADR(Data2), udiCount:=SIZEOF(Data1))); IF ex_1 AND enable THEN util.SysMem.SysMemCpy(pDest:=ADR(Data2), pSrc:=ADR(Data1), udiCount:=SIZEOF(Data1)); END_IF // Example 2 Only selected area of the ARRAY compare and copy // This compare 2 different equal ARRAY starting from position number [3] for 4 byte in this case start at position [3] and finish at position number [6] // and if there is some difference only in area [3..6] of the ARRAY ex_2 go to 1 if you give enalbe he copy Data3[3..6] in Data4[3..6] // if something change in other array position[0..2] or [7..10] are ingnored ex_2 := TO_BOOL(util.SysMem.SysMemCmp(pBuffer1:=ADR(Data3[3]), pBuffer2:=ADR(Data4[3]), udiCount:=4)); IF ex_2 AND enable THEN util.SysMem.SysMemCpy(pDest:=ADR(Data4[3]), pSrc:=ADR(Data3[3]), udiCount:=4); END_IF // Attention udiCount input is intended in <byte> in the example 1 I pass to udiCount:=SIZEOF(Data1) for compare and copy the intere ARRAY and // SIZEOF pass the size of intere ARRAY in byte to the function input, in this 2 examples I used variable type SINT each one occupie 1 byte and one position in the ARRAY // and in the example 2 I pass udiCount:=4 for compare and copy only 4 position of Data3/4[3..6] if you want to extend this example and use it for an ARRAY OF WORD // remember that each WORD will occupe 2 byte (16 bit) and you will have to pass udiCount:=SIZEOF(Data1) if you need to compare intere ARRAY example 1 // but need udiCount:=(42) for the example 2 because need to compare and copy 4 word each occupie 2 byte (16 bit). // For REAL (32 bit) need udiCount:=SIZEOF(44) for LREAL or (64 bit) need udiCount:=SIZEOF(416) // a good rule is calculate the dimension of the ARRAY in byte without empty space at the end, multiple of data type number for variable bigger then 8 bit // Example : If you want to create an ARRAY for 5 REAL (32 bit) each occupie 4 byte the correct size is ARRAY[0..19] OF REAL 54=20 position. // NOTE : In the example the position of compare function util.SysMem.SysMemCmp is first and the copy function util.SysMem.SysMemCpy inside the IF is after // in one cycle of the program the two array is compared and if there is some difference and enable are copied. // If you move util.SysMem.SysMemCmp after the IF cycle he will copare the ARRAY in the current cycle but the copy of the value will do in the next cycle.</byte>
Last updated: 2025-10-24

Post by ryandmg on Web Client (HMI) Disconnects from Webvisu (Weidmuller u-OS) ^{CODESYS Forge talk (Post)}
Hey Everyone, I'm having a bit of a struggle finding settings that will reliably maintain a connection between the webvisu and a touchscreen client. Every so often the HMI disconnects and will perpetually display the red spinning arrow with the "Error Happened, Will resume automatically" text. Power cycling the HMI to force a reconnect will re-establish comms. It seems to happen during periods of inactivity if that's a clue. From what I've gathered so far this seems to have something to do with the webvisu update rate, buffer size as well as the visu task scan rate. We first tried the default settings as follows: Webvisu Update Rate: 200 ms Webvisu Buffer Size: 50,000 Visu Task Scan Rate: 100 ms Priority 31 Other Tasks for Reference: Main Task Scan Rate: 100 ms Priority 1 Alarm Manager Scan Rate: 50 ms Priority 31 Ethercat Task: 4 ms Priority 1 This would disconnect some what regularly. We then made the following changes to try and stabilize: Webvisu Update Rate: 150 ms Webvisu Buffer Size: 75,000 Visu Task Scan Rate: 75 ms Kept other tasks the same. This seems to disconnect even more frequently. Also for reference the network is very small and only consists of the PLC, a small switch and the HMI. We're also not controlling frames from outside the visu program itself. The frame changes are all done natively. Any suggestions to get this to stop disconnecting? Oh and whatever the issue is the log does not record it. Figured I would ask here before opening a ticket. Thanks in advance for your help!
Last updated: 2023-09-06

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