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Post by vahasa on CAN TPDO / RPDO ^{CODESYS Forge} ^talk ^(Post)
Hi I'm automation engineering student and I'm not yet quite familiar with CAN-bus. What I am trying to achieve, to send two byte message via CAN from Epec display to Scott Drive inverter. I'm using code template made with Epec Multitool in Codesys 3.5 Problem i'm facing is that drive responds with same COB-ID. In multitool, you can create TPDO/RPDO. And depending on that, display either sends or only receives. This is problem, because for parameter polling from drive, you need to send two byte request to 0x399 and drive responds with eight bytes. If request is longer, drive don't respond. 0x399 is currently setted as RPDO, so display doesn't send anything on startup and I made program that sends messages to 0x399 bytes 0 and 1 and bytes 3-7 are shown in display. If setted as TPDO, display send all eight bytes and therefor drive cannot respond. But, I think because they are defined as RPDO, display won't send message, although monitoring with Codesys, values are changed. Question is, how should COB-ID be configured in Codesys, so it wouldn't automatically start to send message but would send when needed?
Last updated: 2023-12-19

Post by toby on Ethernet/IP communication with Omron NX1P2 ^{CODESYS Forge} ^talk ^(Post)
Hey guys, I'm very much a noob with networking, it's my achillies heel, and this is my first networking project using Ethernet/IP. Any help offered is GREATLY appreciated. I'm trying to network a Codesys Project with an Omron NX1P2 PLC. I'm using EIP due to hardware restrains. I've added the fieldbus, EIP scanner (as the master), and made a Network Variable List. On the Sysmac Studio end, I've made the variables and set them to network inputs/outputs, registered them in EIP settings, but when I try to set the target device (the Codesys project), I suspect I need to import an EDS file for the EIP mapping. Back in the Codesys project, I'm not sure how to: - Make an EDS file to share with Sysmac Studio - How to link the target device (Omron PLC) to the EIP fieldbus - How to map the inputs from the Omron PLC. Im sorry for my very open request for help, i'm kind of lost looking through the various forums/video/tutorials as many of them dont match what im trying to do. Any help, or sample programs would be so so greatly appreciated. If you need any further clarifications, please feel free to ask. Thanks in advance, Toby
Last updated: 2024-01-24

Post by manuknecht on High Cycle Times for SoftMotion_PlanningTask when using AxisGroup ^{CODESYS Forge} ^talk ^(Post)
Hello all I am using an AxisGroup with the Gantry2 Kinematics to move a 2D-Gantry system. When creating the AxisGroup, the SoftMotion_PlanningTask is created automatically with a cycle time of 2 ms in my case. I realized that the maximum cycle time of this task can spike to very high values (up to 60 ms) at lower speeds of the motion, leading to synchronization issues and errors on the axes. The same behaviour - though not as drastic - can be observed with virtual axes too. Is this behaviour intended or to be expected? Can the cycle time or type of the SoftMotion_PlanningTask be changed to prevent these errors? Or is there another fix for this issue? I tried changing the cycle type to Freewheeling, which solved the synchronization issues, but caused an error on the AxisGroup after a while, reading SMC_CP_QUEUE_UNDERRUN. Thanks in advance and best regards Manuel
Last updated: 2024-03-07

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 joshskellig on Publish a JSON payload via MQTT Publish (using IIot Libraries) ^{CODESYS Forge} ^talk ^(Post)
I am trying to figure out how to get a JSON payload to properly publish to my MQTT Broker. I am able to generate JSON using the examples from Codesys, but when I send that payload via MQTT there are characters that are extra or not recognized by my MQTT client. Any idea what could be causing it? PROGRAM PLC_PRG VAR hostname: STRING := 'localhost'; port: UINT := 1883; topic: WSTRING(1024) := "testing/"; payload: BYTE; factory : JSON.JSONDataFactory; eDataFactoryError : FBF.ERROR; pJsonData : POINTER TO JSON.JSONData := factory.Create(eError => eDataFactoryError); fb_JBuilder : JSON.JSONBuilder; wsValue : WSTRING := "Value1"; diRootIndex, diObject1Index : DINT; iValue : INT := 1234; jsonArrayWriter : JSON.JSONByteArrayWriter; wsJsonData : WSTRING(1000); xFirst : BOOL := TRUE; mqttClient: MQTT.MQTTClient; mqttPublish: MQTT.MQTTPublish; mqttPublishProperties: MQTT.MQTTPublishProperties := (bPayloadFormatIndicator := 1, wsContentType := "application/json"); END_VAR // Json Functionality IF xFirst THEN fb_JBuilder(pJsonData := pJsonData, diRootObj => diRootIndex); fb_JBuilder.SetKeyWithValue("Key1", wsValue, diParentIndex := diRootIndex); diObject1Index := fb_JBuilder.SetKeyWithObject("Key2", diParentIndex := diRootIndex); fb_JBuilder.SetKeyWithValue("Key3", iValue, diParentIndex := diObject1Index); xFirst := FALSE; END_IF jsonArrayWriter(pwData := ADR(wsJsonData), udiSize := SIZEOF(wsJsonData), jsonData := pJsonData^, xAsyncMode := FALSE); MSU.StrTrimW(pString:= ADR(wsJsonData)); // MQTT Functionality mqttClient( sHostname:=hostname, uiPort:=port, eMQTTVersion:=MQTT.MQTT_VERSION.V5 ); mqttPublish( mqttClient:=mqttClient, pbPayload:=ADR(wsJsonData), udiPayloadSize:=SIZEOF(wsJsonData), wsTopicName:=topic, mQTTPublishProperties:=mqttPublishProperties );
Last updated: 2024-04-10

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 hanoues on setting date and time on CPX-E ^{CODESYS Forge} ^talk ^(Post)
Hello, Can anybody here tell me how to modify the time and date on my CPX-E? I used the code I found on CODESYS online help, but it doesn't work. What am I missing? FUNCTION current_date_time : STRING VAR stUTC_Timestamp : SysTime; //utc time // ULINT#1528280694913 stLocal_TimeStamp : SysTime; //local time but is in general equal // ULINT#1528280694913 stdNow : SysTimeDate; //local time in an object to access each number (day, month...) dtNow : DATE_AND_TIME;//DT#2018-6-6-10:24:54 todNow : TIME_OF_DAY; // TOD#10:24:54.913 datNow : DATE; // D#2018-6-6 END_VAR SysTimeRtcHighResGet(stUTC_Timestamp); // ULINT#1528273494913 SysTimeRtcConvertHighResToLocal(stUTC_Timestamp, stdNow); //convert UTC ULINT to Local SysTime // stdNow.wYear = UINT#2018 // stdNow.wMonth = UINT#6 // stdNowy.wDay = UINT#6 // stdNow.wHour = UINT#10 // stdNow.wMinute = UINT#24 // stdNow.wSecond = UINT#54 // stdNow.wMilliseconds = UINT#913 // stdNow.wDayOfWeek = UINT#3 // stdNow.wYday = UINT#157 SysTimeRtcConvertDateToHighRes(stdNow, stLocal_TimeStamp); // ULINT#1528280694913 dtNow := TO_DT(stLocal_TimeStamp / 1000 ( ms )); // DT#2018-6-6-10:24:54 todNow := TO_TOD(stLocal_TimeStamp MOD TO_ULINT(T#1D)); // TOD#10:24:54.913 datNow := TO_DATE(dtNow); // D#2018-6-6 (convert to appropriate string) current_date_time := concat('$N[', TO_STRING(dtNow)); current_date_time:= concat(current_date_time,'.'); current_date_time:= concat(current_date_time, TO_STRING(stdNow.wMilliseconds)); current_date_time:= concat(current_date_time,'] - '); RETURN;
Last updated: 2024-05-21

Post by caprez95 on Trace Restart Visuelement ^{CODESYS Forge} ^talk ^(Post)
Hello everyone. I've been struggling with the problem for a long time that I can't reset (restart) a trend (visual element). With the example I have now managed to control the trace recording via the CmpTraceMgr library. But how do I get this trace recording into a visual element? The code looks like this: // Configure trace IF xInit THEN // Create a trace packet PacketConfig.pszName := ADR('IECTraceConfiguration.Trace1'); // Name of trace PacketConfig.pszApplicationName := ADR('IECTraceConfiguration'); // Name of the application PacketConfig.pszIecTaskName := ADR('Task'); // Name of the task PacketConfig.pszComment := ADR('Demo packet'); PacketConfig.ulEveryNCycles := 1; PacketConfig.ulBufferEntries := 1000; PacketConfig.ulFlags := TRACE_PACKET_FLAGS.TRACE_PACKET_FLAGS_TIMESTAMP_MS AND TRACE_PACKET_FLAGS.TRACE_PACKET_FLAGS_AUTOSTART; IF (NOT fbTraceManager.CreatePacket(PacketConfig := PacketConfig, hPacket=>hPacket1)) THEN xError := TRUE; END_IF // Create a trace record RecordConfig.pszVariable := ADR('iSignal'); // This is the name of variable to record RecordConfig.tcClass := INT_TO_UDINT(TypeClass.TYPE_INT); // Type of the recording variable RecordConfig.ulSize := SIZEOF(iSignal); // Size of the recording variable pApp := AppFindApplicationByName('IECTraceConfiguration', 0); AppGetAreaOffsetByAddress(pApp, ADR(iSignal), ADR(RecordConfig.tvaAddress.taAddress.Area.usArea), ADR(RecordConfig.tvaAddress.taAddress.Area.ulOffset)); // Get and set area offsets RecordConfig.tvaAddress.ulAddressFlags := TRACE_VAR_ADDRESS_FLAGS_IEC OR TRACE_VAR_ADDRESS_FLAGS_AREA_OFFSET; RecordConfig.ulGraphColor := 16#FF00FF00; // green RecordConfig.ulGraphType := 1; // Line with points IF (NOT fbTraceManager.AddRecord(RecordConfig := RecordConfig, hPacket := hPacket1, hRecord => hRecord1)) THEN xError := TRUE; END_IF xInit := FALSE; END_IF // Starts the recording IF xStart THEN IF (NOT fbTraceManager.StartPacket(hPacket := hPacket1)) THEN xError := TRUE; END_IF xStart := FALSE; END_IF // Stop the recording IF xStop THEN IF (NOT fbTraceManager.StopPacket(hPacket := hPacket1)) THEN xError := TRUE; END_IF xStop := FALSE; END_IF // Reset the recording IF xReset THEN IF (NOT fbTraceManager.ResetPacket(hPacket := hPacket1)) THEN xError := TRUE; END_IF xReset := FALSE; END_IF
Last updated: 2024-06-04

Post by gatto on Backtick identifiers ^{CODESYS Forge} ^talk ^(Post)
Hello, I’m in Codesys 3.5.20.40 and I try to declare the variable ´var1´ but I get an error. here : https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_rules.html i read : Backtick identifiers By using backticks, characters can also be used in identifiers that are not normally permitted in identifiers, such as special characters. The acute accent character is used for backticks: ´ (Unicode: U+02CA) The use of backticks is recommended in order to be able to use the same identifiers in CODESYS as in other programming languages or documents, such as circuit diagrams. Any character may be used between two backticks, except line breaks and other backticks. Keywords are also allowed as identifiers between backticks. Examples: ´Variable+9´ ´INT´ The backticks are part of each identifier and therefore var1 and ´var1´ are two different identifiers. Example PROGRAM PLC_PRG VAR var1 : INT; ´var1´: INT; END_VAR var1 := var1 + 1; ´var1´ := 12; Are there any limitations or is something missing in my development environment?
Last updated: 2025-10-28

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 tjacks on Opc UA Data Source Client Browse Error in Codesys HMI ^{CODESYS Forge} ^talk ^(Post)
Codesys V3.5 SP21 Patch 3 Codesys HMI 3.5.21.30 I'm trying to connect to an OPC UA server on a Kuka robot controller using Codesys HMI's data source manager. I get through the login phase and the client browses most of the data structure on the server but errors out toward the end with a generic: Error while browsing the client, Failed with service result: BadUnexpectedError. If I complete the data source setup and try to update variables, I get the attached stack trace for the error. I've tried several different endpoint and security options. Most get me through the login but all error out while browsing. UA Expert happily connects and browses with the same configuration. I've connected this same version of Codesys to TwinCAT OPC UA servers and Siemens PLC OPC UA servers. Any ideas on what may be causing the generic BadUnexpectedError during OPC UA server browse?
Last updated: 2025-11-17

Post by nickpoon on SysProcessCreate stopped working after SP21? ^{CODESYS Forge} ^talk ^(Post)
I'm going through the process of updating the CODESYS Project a machine to 3.5 SP21 (old version was 3.5 SP20). One function that stopped working when upgrading was SysProcessCreate. I need to run a .exe file that is located in C:\Program Files\MQTTStream. Some initial searching suggested that there are new security rules that prevent the SoftPLC from reading/writing files to outside of its Device folder (located here - C:\Windows\System32\config\systemprofile\AppData\Roaming\CODESYS\CODESYSControlWinV3x64\24FD6770) Relocating files helped fix my JSON file reader/writer functions (which were failing previously), but not the case for SysProcessCreate. I've even attempted to just run window's cmd.exe and with: pszCommandLine = 'cd /d C:\Windows\System32\config\systemprofile\AppData\Roaming\CODESYS\CODESYSControlWinV3x64\24FD6770\PlcLogic\MQTTStream & sift-proxy.exe --grpc_uri="https://grpc-api.siftstack.com" --api_key="xxxxxxxxxxxxxxxxxxx" mqtt-client --broker_ip=10.0.10.101 --broker_port=1883 --config_file="mqtt_telemetry_config.json" --username Plantd --password 1234 --stream_metrics --storage_path="sift-proxy-logs"' I have not been able to find a lot of documentation on this, and I suspect the new update may have created a bug for SysProcessCreate. Any help would be greatly appreciated
Last updated: 2026-02-02

Post by bschraud on runtime received SIGABRT ^{CODESYS Forge} ^talk ^(Post)
Ich konnte den Fehler leider nicht wirklich finden. Hier mein bisheriger Fortschritt: Um nähere Informationen zu bekommen, habe ich einen strace erstellt: PID ermitteln: $ ps aux | grep codesyscontrol | grep -v grep --> 560 sudo strace -tt -f -p 560 -o /tmp/codesys_strace.log (Die Logdatei wird schnell einige hundert MB groß.) Mit grep -B 100 'si_signo=SIGABRT' /tmp/codesys_strace.log konnte ich die relevanten Einträge finden: (Die PID hat sich inzwischen wegen einem Reboot geändert) 1023 15:33:49.497136 writev(2, [{iov_base="Unexpected error 9 on netlink de"..., iov_len=45}], 1 <unfinished ...=""> .. 1023 15:33:49.498352 tgkill(545, 1023, SIGABRT <unfinished ...=""> 1023 15:33:49.498440 <... tgkill resumed> ) = 0 .. 1023 15:33:49.498730 --- SIGABRT {si_signo=SIGABRT, si_code=SI_TKILL, si_pid=545, si_uid=0}</unfinished></unfinished> Der Codesys Log zeigt zu diesem Zeitpunkt: Exception: HANDLED EXCPT <excpt>NonContinuable</excpt> in CH_COMM_CYCLE Mit sudo lsof -p 545 habe ich die Anzahl der geöffneten Dateien überprüft ohne Auffälligkeiten Mit sudo netstat -tunaep | grep codesys habe ich die offenen Netzwerkverbindungen der codesys Prozesse überprüft Hier sieht es so aus, dass codesyscontrol und codesysedge über die externen Netzwerkschnittstelle anstatt über den localhost kommunizieren: udp 0 0 172.19.11.127:1740 0.0.0.0: 0 17882 549/codesyscontrol. udp 0 0 172.19.11.255:1740 0.0.0.0: 0 17883 549/codesyscontrol. udp 0 0 172.19.11.255:1743 0.0.0.0: 0 16993 529/codesysedge.bin udp 0 0 172.19.11.127:1743 0.0.0.0: 0 16992 529/codesysedge.bin Leider kann ich keine Konfiguration mit einer anderen Schnittstelle einstellen.. Als nächstes habe ich die udp Kommunikation der beiden Prozesse aufgezeichnet: SPID des BlkDrvUdp Threads ermitteln: $ ps aux | grep codesyscontrol | grep -v grep --> 548 $ ps -T -p 548 | grep BlkDrvUdp --> 1200 Damit kann man den strace starten: sudo strace -p 1020 -f -tt -o /tmp/udp_control_trace.log -e trace=socket,connect,bind,sendto,recvfrom,close $ ps aux | grep codesysedge | grep -v grep --> 528 $ ps -T -p 528 | grep BlkDrvUdp --> 789 sudo strace -p 789 -f -tt -o /tmp/udp_edge_trace.log -e trace=socket,connect,bind,sendto,recvfrom,close Beim Aufzeichnen des Traces kamen wiederholte Fehlereinträge im codesyscontrol.log (diesmal ohne SIGABRT) nach folgendem Muster: tail -f /var/opt/codesys/codesyscontrol.log (mit UTC Zeit) 2025-04-17T11:23:43.147Z, 0x00000071, 1, 0, 0, Host : PAC4 2025-04-17T11:23:43.147Z, 0x00000071, 1, 0, 0, HTTP port : 8080 2025-04-17T11:23:43.147Z, 0x00000071, 1, 0, 0, HTTPS port : 443 2025-04-17T11:23:43.147Z, 0x00000071, 1, 0, 0, Connection type : HTTP 2025-04-17T11:23:43.147Z, 0x00000071, 1, 0, 0, ********** 2025-04-17T11:23:46.318Z, 0x00000061, 1, 0, 0, Create asymmetric key done! 2025-04-17T11:23:53.464Z, 0x00000071, 1, 404, 0, File $PlcLogic$/$visu$/favicon.ico not found on this server 2025-04-17T11:23:55.208Z, 0x0000100c, 1, 0, 0, Visu_PRG: Creating Client for Extern-ID: 2025487823 2025-04-17T11:23:55.216Z, 0x0000100c, 1, 0, 0, Visu_PRG: Creating Client successful for Extern-ID: 2025487823 Returned IEC-ID: 0 2025-04-17T11:40:43.471Z, 0x00000114, 4, 1, 0, ** ERROR: SysTaskCreate [CheckLicense0]: pthread_setname_np: Bad file descriptor Hier der dazu passende trace auszug von grep -B 100 '13:40:43' /tmp/udp_edge_trace.log: 798 13:40:42.592535 socket(AF_NETLINK, SOCK_RAW|SOCK_CLOEXEC, NETLINK_ROUTE) = 9 798 13:40:42.592794 bind(9, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 0 798 13:40:42.593049 sendto(9, {{len=20, type=0x12 / NLMSG_??? /, flags=NLM_F_REQUEST|0x300, seq=1744890042, pid=0}, "\x00\x00\x00\x00"}, 20, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 20 798 13:40:42.602995 sendto(9, {{len=20, type=0x16 / NLMSG_??? /, flags=NLM_F_REQUEST|0x300, seq=1744890043, pid=0}, "\x00\x00\x00\x00"}, 20, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 20 798 13:40:42.614794 close(9) = 0 798 13:40:42.615065 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 9 798 13:40:42.615331 close(9) = 0 798 13:40:42.616159 close(9) = 0 798 13:40:42.616318 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 9 798 13:40:42.616555 close(9) = 0 798 13:40:42.617209 close(9) = 0 798 13:40:42.617355 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 9 798 13:40:42.617590 close(9) = 0 798 13:40:42.618497 close(9) = 0 798 13:40:42.618712 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 9 798 13:40:42.618995 close(9) = 0 798 13:40:42.619568 close(9) = 0 798 13:40:42.620247 close(9) = 0 798 13:40:42.620441 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 9 798 13:40:42.620690 close(9) = 0 798 13:40:42.621181 close(9) = 0 798 13:40:42.621823 close(9) = 0 798 13:40:43.520036 close(9) = 0 798 13:40:43.520406 close(9) = 0 und grep -B 100 '13:40:43' /tmp/udp_control_trace.log 1035 13:40:43.389785 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 20 1035 13:40:43.390043 close(20) = 0 1035 13:40:43.390681 close(20) = 0 1035 13:40:43.393690 close(20) = 0 22586 13:40:43.450945 close(0) = 0 22586 13:40:43.451230 close(0) = -1 EBADF (Ungültiger Dateideskriptor) 22586 13:40:43.451689 close(20) = 0 22586 13:40:43.452104 close(1) = 0 22586 13:40:43.452481 close(21) = 0 22586 13:40:43.452679 close(2) = 0 22586 13:40:43.452860 close(2) = -1 EBADF (Ungültiger Dateideskriptor) 1009 13:40:43.454112 close(21) = 0 22586 13:40:43.454522 close(8) = 0 22586 13:40:43.455428 close(8) = 0 22586 13:40:43.455976 close(8) = 0 22586 13:40:43.456852 close(8) = 0 22587 13:40:43.463115 close(8) = 0 22587 13:40:43.464074 close(8) = 0 22587 13:40:43.464682 close(8) = 0 22587 13:40:43.465463 close(8) = 0 22587 13:40:43.468229 close(8) = 0 22587 13:40:43.468737 close(1 <unfinished ...=""> 1009 13:40:43.468805 close(20 <unfinished ...=""> 22587 13:40:43.468849 <... close resumed> ) = 0 1009 13:40:43.468896 <... close resumed> ) = 0 22587 13:40:43.468942 close(2) = 0 22587 13:40:43.469504 +++ exited with 0 +++ 22586 13:40:43.469670 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22587, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- 22586 13:40:43.470175 +++ exited with 0 +++ 1009 13:40:43.470265 close(20) = 0 546 13:40:43.470577 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22586, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- 1035 13:40:43.470913 close(20) = -1 EBADF (Ungültiger Dateideskriptor) 22588 13:40:43.480352 --- SIGRT_7 {si_signo=SIGRT_7, si_code=SI_TKILL, si_pid=546, si_uid=0} --- 22588 13:40:43.481675 --- SIGRT_6 {si_signo=SIGRT_6, si_code=SI_TKILL, si_pid=546, si_uid=0} --- 22588 13:40:43.482410 +++ exited with 0 +++</unfinished></unfinished> Die Zeile 2025-04-17T11:40:43.471Z, 0x00000114, 4, 1, 0, **** ERROR: SysTaskCreate [CheckLicense0]: pthread_setname_np: Bad file descriptor zeigt, dass der EBADF-Fehler beim Versuch auftritt, einen neuen Thread namens "CheckLicense0" zu erstellen. Die Funktion pthread_setname_np() erhält einen EBADF-Fehler. Ich weiß leider nicht, ob das eine heiße Spur ist. Parallel dazu habe ich die Aufrufe von Systemfunktionen über SysProcess_Implementation.SysProcessExecuteCommand2 auskommentiert ohne den Fehler damit abzustellen. An diesem Punkt habe ich wegen Termindruck den alten Stand der Runtime (4.11.0.0) mit der Codesys Version 3.5 SP20 wiederhergestellt und die geänderten Programme und Visualisierungen manuell getauscht mit dem Ergebnis, dass der Fehler in den letzten 2 Stunden nicht mehr aufgetreten ist. Wenn jemand das Problem kennt, wäre ich für einen Austausch dankbar. Frohe Ostern!
Last updated: 2025-04-17

Post by fefefede on Get the numer of day ^{CODESYS Forge} ^talk ^(Post)
Hello i tro to create a program to turn on or off the air condition in relationship temperature and numer of day. I can't get the number of day. I try this after installing SysTime library but this not work and have this error on debug ------ Build started: Application: Device.Sim.Device.Application ------- Typify code... Generate code... [ERROR] giorno_accensione_aria: PLC_PRG Device: PLC Logic: Application: C0032: Cannot convert type 'Unknown type: 'SysTimeCore(TRUE)'' to type 'TIME' [ERROR] giorno_accensione_aria: PLC_PRG Device: PLC Logic: Application: C0035: Program name, function or function block instance expected instead of 'SysTimeCore' [ERROR] giorno_accensione_aria: PLC_PRG Device: PLC Logic: Application: C0032: Cannot convert type 'Unknown type: 'DayOfWeek(CurrentTime)'' to type 'INT' [ERROR] giorno_accensione_aria: PLC_PRG Device: PLC Logic: Application: C0035: Program name, function or function block instance expected instead of 'DayOfWeek' [INFORMATION] giorno_accensione_aria: PLC_PRG Device: PLC Logic: Application: C0181: Related position Build complete -- 4 errors, 0 warnings : No download possible PROGRAM PLC_PRG VAR Temperatura: UDINT; AriaCondizionata: BOOL := FALSE; CurrentDayOfWeek: INT; //Variabile Giorno CurrentTime: TIME; GiornoDellaSettimana: INT; DayOfWeek: INT; END_VAR CurrentTime := SysTimeCore(TRUE); // Ottieni l'ora corrente CurrentDayOfWeek := DayOfWeek(CurrentTime); CASE GiornoDellaSettimana OF 1: // Azioni per Lunedì 2: // Martedì se più 10° accend altrimenti spegni IF Temperatura >= 10 THEN AriaCondizionata := TRUE; ELSE AriaCondizionata := FALSE; END_IF 3: // Mercoledì se più di 50° accendi altrimenti spegni IF Temperatura >=50 THEN AriaCondizionata := TRUE; ELSE AriaCondizionata := FALSE; END_IF 4: // Giovedì se più di 40° accendi altrimenti spegni IF Temperatura >=40 THEN AriaCondizionata := TRUE; ELSE AriaCondizionata := FALSE; END_IF 5: // Venerdì se più di 50° accendi altrimenti spegni IF Temperatura >=50 THEN AriaCondizionata := TRUE; ELSE AriaCondizionata := FALSE; END_IF 6: // Sabato se più di 25° accendi altrimenti spegni IF Temperatura >=25 THEN AriaCondizionata := TRUE; ELSE AriaCondizionata := FALSE; END_IF 7: // Domenica sempre spenta AriaCondizionata := FALSE; END_CASE
Last updated: 2023-09-14

Post by manuknecht on Opening a Dialog on a specific Client from ST ^{CODESYS Forge} ^talk ^(Post)
I managed to find a solution that seems to work reliably. As the VU.Globals.CurrentClient-filter accesses the CURRENTCLIENTID or at least a similar, internal variable it can only be used if called from a certain client (e.g. from a button in a visualization). My solution works by implementing a new client filter that compares the client ID of all clients to the ID of the last client that was used. The variable containing the data of the last client is defined as: G_LastClient : VU.IVisualizationClient; // Copy of last client that detected click This last client is then updated every time a button is pressed using the Execute ST-Code input configuration of the button: G_LastClient := VU.PublicVariables.Clients.Current; Next, I created a function block that implements the client filter interface as so: FUNCTION_BLOCK FB_LastClientFilter IMPLEMENTS VU.IVisualizationClientFilter VAR_INPUT END_VAR VAR_OUTPUT END_VAR VAR END_VAR Then i added a method to the FB called IsAccepted which is used to filter out the client. When creating the method, it should automatically be filled with the according variable declaration, as it is defined in the interface: (* For every client can be desided, if it is accepted. ``TRUE``: Client is accepted*) METHOD IsAccepted : BOOL VAR_INPUT (* The client, to check*) itfClient : VU.IVisualizationClient; END_VAR Now the client can be compared to the last used client as such: // check if clientID corresponds to clientID of last recorderd client IF itfCLient.ClientId = G_LastClient.ClientId THEN IsAccepted := TRUE; ELSE IsAccepted := FALSE; END_IF To make use of this custom client filter, initialize a variable with the client filter: LastClient : FB_LastClientFilter; // Client filter to find last used client Then use this client filter when opening or closing a dialog from ST: fbOpenMyDialog(itfClientFilter:=LastClient,xExecute:=TRUE,sDialogName:='VIS_MyDialog_DLG');
Last updated: 2023-09-27

Post by otbeka on CAA File Handling: "Read only" error ^{CODESYS Forge} ^talk ^(Post)
Hi, On CODESYS V3.5.19.50 I am using the latest 3S File Access library (CAA File & CAA Types) to save and retrieve configuration data from the User Data section of an SD card, via file called config.txt. The application reads the file to memory once upon initialisation, and then the only other operation is overwriting the file with the updated configuration whenever the user changes the settings. An issue is ocurring, seemingly randomly, where the config.txt file, and all surrounding directories, cannot be written to by the unit, returning a READ_ONLY_CAA error upon file open. This sometimes does not clear even after power-cycling the PLC several times, yet checking the file permissions with ls -l shows normal read, write, and execute access. I am wondering if this is caused by the PLC itself or by an issue in my application. I have included my CAA File handler function block (SD_Card_Bin(FB).txt) and any associated types/calls below: TYPE ConfigData : STRUCT Config : ARRAY[0..256] OF STRING(64); NumberOfStrings : UDINT; END_STRUCT END_TYPE TYPE Buffer : STRUCT Data : ARRAY[0..SIZEOF(ConfigData)] OF BYTE; DataLength : UDINT; END_STRUCT END_TYPE A case within my MAIN PRG: mode.WriteConfigDataToFile: VisuElems.CURRENTVISU := 'Screen_Write'; IF xModeHasChanged THEN iErrorCount := 0; iRoute := 0; END_IF CASE iRoute OF 0: inBuffer := ConfigData_To_Buffer(GVL.UnitData); xConfigError := FALSE; xDataConfigured := FALSE; iRoute := 1; 1 : //Read Data from Card SD_Card_Bin.strFileName :=FileName; SD_Card_Bin.iFileOperation := 2; SD_Card_Bin(xExecute :=TRUE, WriteBuffer := inBuffer, xDone =>xDataConfigured, xError=>xConfigError, strErrorCodes=>strError); IF xDataConfigured THEN SD_Card_Bin(xExecute :=FALSE); IF xConfigError THEN iRoute := 32767; ELSE iRoute :=100; END_IF END_IF 100: // The end bCurMode := mode.DisplayProcessVariables; 32767: // Config error iErrorCount := iErrorCount + 1; IF iErrorCount > 2 THEN // Repeats 3 times, if no progress abandons and returns error bCurMode := mode.WriteError; ELSE iRoute := 0; // Try again END_IF END_CASE I'd like to rule out my application as the cause of this bug - help via comments or criticism would be greatly appreciated.
Last updated: 2025-03-19

Post by mp9876 on Device logon problem following fresh install ^{CODESYS Forge} ^talk ^(Post)
All screenshots are enclosed in MS Word document. NOTE; 4 questions features at the end. Any assistance would be greatly appreciated! Hi everyone, I am still having device logon problem following a fresh install Here are the STEPS I went through following a FRESH CODESYS Win 64 3.5.19.60 install on a different computer. ‘Gateway not configured properly’ when attempting to REFRESH from the Users and Groups. Then did Gateway manage and confirmed it was ok: This message popped out as it was a fresh install: YES then: Initially went with Administrator twice (user & password) but it did not like it. No device is responding to …: Continued by setting a new user Pressed OK and obtained the following message: Stopped and Restarted PLC at that point: Obtained the following: Attempted to login a 2nd time without success. Then I scanned the network to see if matching device can be detected: Only way to get it detected was to remove the tick in the ‘Hide non-matching devices…’ Attempted a WINK but got a return like this one: REFRESH either @ Users and Groups or @ Access Rights returns: Then created user ‘mp’ at Project level ang logged in: Understandably device user mp9876 was not valid for the Project. Device information A few questions comes to my mind following these connection attempts: 1- Gateway not configured properly message pops out because of a non-compatible device ? 2- Why would the device not be compatible ? 3- Any way to make the device compatible ? 4- Any ideas on how to get this connectivity problem to the device solved ?
Last updated: 2024-03-17

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 vstrom on Codesys v3.5.22.10 - Internal error:System.AggregateException...Value cannot be null...Parameter name: expLValue ^{CODESYS Forge} ^talk ^(Post)
Hi to all, I receive an error when I try to compile a project that in v.3.5.21.50 have no problem. The error seems to comes out when I add the Visualization part into the project. The complete error is: [ERROR] Internal error:System.AggregateException: One or more errors occurred. ---> System.Exception: Internal error in Code ---> System.ArgumentNullException: Value cannot be null. Parameter name: expLValue at _3S.CoDeSys.LanguageModelManager.LanguageModelBuilder.CreateAssignmentExpression(IExprementPosition pos, IExpression expLValue, IExpression expRValue, Operator kindof) at _3S.CoDeSys.LanguageModelManager.LanguageModelBuilder.CreateAssignmentStatement(IExprementPosition pos, IExpression expLeft, IExpression expRight) at ..(IExpression , IExpression ) at ..(_IAssignmentExpression , ) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.AssignmentStatementReplacer.ReplaceExpressionStatement(_IExpressionStatement expressionStatement, _ICompiledPOU cpou) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_IIfStatement ifst) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_IIfStatement ifst) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_IForStatement forloop) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at ..(_ICompiledPOU ) at ..(_ICompiledPOU ) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Codegeneration.(_ICompiledPOU , _ISignature ) at ..(_ICompiledPOU ) at ..(_ICompiledPOU& ) at ..() --- End of inner exception stack trace --- --- End of inner exception stack trace --- at _3S.CoDeSys.Compiler35220.CompilerPhases.CompilerPhase5_Codegenerator.(IList1 ) at _3S.CoDeSys.Compiler35220.CompilerPhases.CompilerPhase5_Codegenerator.(IScope5 , IList1 ) at _3S.CoDeSys.Compiler35220.CompilerPhases.CompilerPhase5_Codegenerator.(ICodegenerator ) at _3S.CoDeSys.Compiler35220.CompilerPhases.CompilerPhaseControllerGenerateCode.() at _3S.CoDeSys.Compiler35220.CompilerPhases.CompilerPhaseControllerGenerateCode.() ---> (Inner Exception #0) System.Exception: Internal error in Code ---> System.ArgumentNullException: Value cannot be null. Parameter name: expLValue at _3S.CoDeSys.LanguageModelManager.LanguageModelBuilder.CreateAssignmentExpression(IExprementPosition pos, IExpression expLValue, IExpression expRValue, Operator kindof) at _3S.CoDeSys.LanguageModelManager.LanguageModelBuilder.CreateAssignmentStatement(IExprementPosition pos, IExpression expLeft, IExpression expRight) at ..(IExpression , IExpression ) at ..(_IAssignmentExpression , ) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.AssignmentStatementReplacer.ReplaceExpressionStatement(_IExpressionStatement expressionStatement, _ICompiledPOU cpou) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_IIfStatement ifst) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_IIfStatement ifst) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_IForStatement forloop) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Optimization.ExpressionStatementReplacerVisitor.visit(_ISequenceStatement sequenceStatement) at ..(_ICompiledPOU ) at ..(_ICompiledPOU ) at _3S.CoDeSys.Compiler35220.Phase5_Codegeneration.Codegeneration.(_ICompiledPOU , _ISignature ) at ..(_ICompiledPOU ) at ..(_ICompiledPOU& ) at ..() --- End of inner exception stack trace ---<---
Last updated: 2026-04-22

Post by kreisfilho on Stop raspberry from executing a plc program ^{CODESYS Forge} ^talk ^(Post)
Hi guys, Can someone inform where in a raspberry pi are stored the codesys programs? I´ve been training the use of a RPI as PLC, which works pretty well, however while both the RPI and PC (running codesys) remain connected to the same network. The question is: how to run the codesys program downloaded to the RPI as a stand alone device (disconnected from the PC)? Thanks! Kreis
Last updated: 2023-08-23

Post by arnog on Two drives on one axis, Gantry Robot ^{CODESYS Forge} ^talk ^(Post)
Hi TK_Jenssen did you found a solution I am setting up the samelike gantry only with two z-axes which are mounted on fix position with an X axes between the two z-axes. The movement and position of both z-axes must be very well aligned and calibrated. Maybe also to be adjusted by programming. Can you sent an example of your solution?
Last updated: 2023-08-25

Post by fabian on v3.5 SP19 - Modbus TCP Devices - Channel Limit? ^{CODESYS Forge} ^talk ^(Post)
Hi all, Is there an update on this topic? Same problem here, I can not add more than 10 Modbus-Slave channels. Is there a workaround? Many thanks! Fabian Codesys 3.5.19 SP2, Modbus 4.3.0.0, Name: Modbus TCP Slave Hersteller: 3S - Smart Software Solutions GmbH Kategorien: Modbus TCP Slave Typ: 89 ID: 0000 0005 Version: 4.1.0.0 Bestellnummer: - Beschreibung: Ein Geraet, das als Slave für einen Modbus TCP Master konfiguriert ist. Version Konfiguration 3.5.11.0
Last updated: 2023-08-28

Post by dasch on eCockpit - unable to start simulation ^{CODESYS Forge} ^talk ^(Post)
This is a known bug in e!Cockpit. See Release notes of V 1.11: 1 e!Cockpit Release Version 1.11 (2022-07) ATTENTION: If a library that uses asynchronous tasks (e.g. WagoAppConfigTool, WagoAppCloud or function modules such as Dali-Master) is dragged into the project, the simulation cannot be started. It is already sufficient to add the library to the project (an FB does not even have to be instantiated). I guess you are using one of these libraries/modules in your project. We e.G. often use PWM modules, these are also affected.
Last updated: 2023-09-05

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