Post by durallymax on Source code changes since last download ^{CODESYS Forge talk (Post)}
What do the details show? Is it requesting an online change or download? If the compile file is missing, it will request a download. Several things can trigger an online change, if you haven't changed the code, likely libraries. The details should provide some guidance.
Last updated: 2025-12-01

Post by reinier-geers on SYSDIR 3.5.17.0 ^{CODESYS Forge talk (Post)}
I had a funcioning Directory read wit SYSDIR. Now ive got a new controller with Linux. and now i get only ordners Names. NO file Names !! WHY ? It workt already on a other with linux. But that was i think version 14
Last updated: 2026-01-06

Post by reinier-geers on SYSDIR 3.5.17.0 ^{CODESYS Forge talk (Post)}
I had a funcioning Directory read wit SYSDIR. Now ive got a new controller with Linux. and now i get only ordners Names. NO file Names !! WHY ? It workt already on a other with linux. But that was i think version 14
Last updated: 2026-01-06

Post by netprim on Could not save the project: Could not find part of the path ^{CODESYS Forge talk (Post)}
Hi , do you know how to solve the issue?! I am getting " Project could not be saved: The file exists."
Last updated: 2026-06-10

Post by risele on CODESYS and Github Copilot ^{CODESYS Forge talk (Post)}
You actually can use copilot by PLCOpen XML file exporting/importing. It's fine to work with it directly (at least, the Codex do it quite well).
Last updated: 2026-02-13

Post by wallandreas008 on OPC-Server V3 - keine Items zu sehen... ^{CODESYS Forge talk (Post)}
Hallo ich habe ebenfalls Probleme mit dem Verbindungsaufbau zu 3 ABB SPSen nach einem Windows Update. hier meine OPCServer.ini [Server] updaterate=200 publicgroups=0 logevents=1 syncinit=1 PLCs=3 PLC0=PLC1 PLC1=PLC2 PLC2=PLC3 [PLC:PLC1] interfacetype=GATEWAY motorola=1 nologin=0 timeout=10000 tries=3 buffersize=4800 project=ZE_PC01 reconnecttime=10 waittime=12 active=1 logevents=1 logfilter=0 gateway=Tcp/Ip gatewayaddress=localhost gatewayport=1210 parameters=3 device=Tcp/Ip instance=TCPIP_0_101 parameter0=Address value0=192.168.0.101 parameter1=Port value1=1201 parameter2=Motorola byteorder value2=Yes [PLC:PLC2] interfacetype=GATEWAY motorola=1 nologin=0 timeout=10000 tries=3 buffersize=4800 project=ZE_PC02 reconnecttime=15 waittime=10 active=1 logevents=1 logfilter=10 gateway=Tcp/Ip gatewayaddress=localhost gatewayport=1210 parameters=3 device=Tcp/Ip instance=TCPIP_0_102_ parameter0=Address value0=192.168.0.102 parameter1=Port value1=1201 parameter2=Motorola byteorder value2=Yes [PLC:PLC3] interfacetype=GATEWAY motorola=1 nologin=0 timeout=10000 tries=3 buffersize=4800 project=ZE_PC03 reconnecttime=15 waittime=10 active=1 logevents=1 logfilter=10 gateway=Tcp/Ip gatewayaddress=localhost gatewayport=1210 parameters=3 device=Tcp/Ip instance=TCPIP_0_103_ parameter0=Address value0=192.168.0.103 parameter1=Port value1=1201 parameter2=Motorola byteorder value2=Yes [Redundancy] NumOfGroups=0 Im Logfile habe ich immer diese Meldungen: ;********* ;<loggername>OPCServer.log</loggername> ;<logoptions> ; <maxfiles>0</maxfiles> ; <maxfilesize>1048576</maxfilesize> ;</logoptions> ;********* 2026-09-29T12:01:40.598+0200, OPC-Server V3.5.20.0 by CODESYS Development GmbH. 2026-09-29T12:01:40.598+0200, Path for ini-File: C:\ProgramData\CODESYSOPC\OPCServer.ini 2026-09-29T12:01:40.598+0200, Path for AE-Config: C:\Program Files (x86)\CODESYS 3.5.20.0\CODESYS OPC Server 3\OPCServerA.ini 2026-09-29T12:01:40.598+0200, AE-Configuration unused. 2026-09-29T12:01:40.598+0200, 3 PLCs configured 2026-09-29T12:01:40.598+0200, [PLC1]: Try to open connection... 2026-09-29T12:01:40.599+0200, [PLC2]: Try to open connection... 2026-09-29T12:01:40.599+0200, [PLC3]: Try to open connection... 2026-09-29T12:01:40.599+0200, [PLC1]: Open communication successful 2026-09-29T12:01:40.600+0200, [__CommState] : Initially added implicit variable. 2026-09-29T12:01:40.601+0200, [__CommStateOK] : Initially added implicit variable. 2026-09-29T12:01:40.601+0200, [PLC1]: ---------- Configuration ---------- 2026-09-29T12:01:40.601+0200, [PLC2]: Open communication successful 2026-09-29T12:01:40.601+0200, [__CommState] : Initially added implicit variable. 2026-09-29T12:01:40.601+0200, [PLC1]: PLCHandler Version: 3.5.20.0 2026-09-29T12:01:40.601+0200, [PLC1]: m_pPlcConfig->ulId = 0, m_pPlcConfig->pszName = PLC1 2026-09-29T12:01:40.601+0200, [PLC1]: m_pPlcConfig->it = IT_GATEWAY, m_pPlcConfig->bActive = 1 2026-09-29T12:01:40.601+0200, [PLC1]: m_pPlcConfig->bLogToFile = 1, m_pPlcConfig->ulLogFilter = 0xF 2026-09-29T12:01:40.601+0200, [PLC1]: m_pPlcConfig->bMotorola = 1, m_pPlcConfig->bLogin = 1 2026-09-29T12:01:40.601+0200, [PLC1]: m_pPlcConfig->ulBufferSize = 4800, m_pPlcConfig->bPreCheckIdentity = 0 2026-09-29T12:01:40.601+0200, [PLC1]: m_pPlcConfig->ulHwVersion = 0 2026-09-29T12:01:40.601+0200, [PLC1]: m_pPlcConfig->ulTimeout = 10000, m_pPlcConfig->ulNumTries = 3 2026-09-29T12:01:40.601+0200, [PLC1]: m_pPlcConfig->ulWaitTime = 12000, m_pPlcConfig->ulReconnectTime = 10000 2026-09-29T12:01:40.601+0200, [PLC1]: m_pPlcConfig->pszProjectName = ZE_PC01 2026-09-29T12:01:40.601+0200, [PLC1]: m_pPlcConfig->gwc->pszDeviceName = Tcp/Ip 2026-09-29T12:01:40.601+0200, [PLC1]: m_pPlcConfig->gwc->pszAddress = localhost, m_pPlcConfig->gwc->ulPort = 1210 2026-09-29T12:01:40.601+0200, [__CommStateOK] : Initially added implicit variable. 2026-09-29T12:01:40.601+0200, [PLC2]: ---------- Configuration ---------- 2026-09-29T12:01:40.601+0200, [PLC3]: Open communication successful 2026-09-29T12:01:40.601+0200, [PLC2]: PLCHandler Version: 3.5.20.0 2026-09-29T12:01:40.601+0200, [PLC2]: m_pPlcConfig->ulId = 1, m_pPlcConfig->pszName = PLC2 2026-09-29T12:01:40.601+0200, [PLC2]: m_pPlcConfig->it = IT_GATEWAY, m_pPlcConfig->bActive = 1 2026-09-29T12:01:40.601+0200, [PLC2]: m_pPlcConfig->bLogToFile = 1, m_pPlcConfig->ulLogFilter = 0xF 2026-09-29T12:01:40.601+0200, [PLC2]: m_pPlcConfig->bMotorola = 1, m_pPlcConfig->bLogin = 1 2026-09-29T12:01:40.601+0200, [PLC2]: m_pPlcConfig->ulBufferSize = 4800, m_pPlcConfig->bPreCheckIdentity = 0 2026-09-29T12:01:40.601+0200, [PLC2]: m_pPlcConfig->ulHwVersion = 0 2026-09-29T12:01:40.601+0200, [PLC2]: m_pPlcConfig->ulTimeout = 10000, m_pPlcConfig->ulNumTries = 3 2026-09-29T12:01:40.601+0200, [PLC2]: m_pPlcConfig->ulWaitTime = 10000, m_pPlcConfig->ulReconnectTime = 15000 2026-09-29T12:01:40.601+0200, [PLC2]: m_pPlcConfig->pszProjectName = ZE_PC02 2026-09-29T12:01:40.601+0200, [PLC2]: m_pPlcConfig->gwc->pszDeviceName = Tcp/Ip 2026-09-29T12:01:40.601+0200, [PLC2]: m_pPlcConfig->gwc->pszAddress = localhost, m_pPlcConfig->gwc->ulPort = 1210 2026-09-29T12:01:40.601+0200, [PLC2]: m_pDeviceDesc->pszName = Tcp/Ip 2026-09-29T12:01:40.601+0200, [__CommState] : Initially added implicit variable. 2026-09-29T12:01:40.601+0200, [PLC2]: m_pDeviceDesc->pszInstance = TCPIP_0_102_ 2026-09-29T12:01:40.601+0200, [PLC2]: m_pDeviceDesc->ulNumParams = 5 2026-09-29T12:01:40.601+0200, [PLC2]: parameter0 = Address, value0 = 192.168.0.102 2026-09-29T12:01:40.601+0200, [PLC2]: parameter1 = Port, value1 = 1201 2026-09-29T12:01:40.601+0200, [PLC2]: parameter2 = Motorola byteorder, value2 = Yes 2026-09-29T12:01:40.601+0200, [PLC2]: parameter3 = SymbolFilePath, value3 = C:\Windows\system32\ 2026-09-29T12:01:40.601+0200, [PLC2]: parameter4 = WriteThroughReadCache, value4 = 1 2026-09-29T12:01:40.601+0200, [PLC2]: ----------------------------------- 2026-09-29T12:01:40.601+0200, [PLC2]: CPLCHandler: Interface: IT_GATEWAY used 2026-09-29T12:01:40.602+0200, [PLC1]: m_pDeviceDesc->pszName = Tcp/Ip 2026-09-29T12:01:40.602+0200, [PLC1]: m_pDeviceDesc->pszInstance = TCPIP_0_101 2026-09-29T12:01:40.602+0200, [__CommStateOK] : Initially added implicit variable. 2026-09-29T12:01:40.602+0200, [PLC3]: ---------- Configuration ---------- 2026-09-29T12:01:40.602+0200, [PLC3]: PLCHandler Version: 3.5.20.0 2026-09-29T12:01:40.602+0200, [PLC3]: m_pPlcConfig->ulId = 2, m_pPlcConfig->pszName = PLC3 2026-09-29T12:01:40.602+0200, [PLC3]: m_pPlcConfig->it = IT_GATEWAY, m_pPlcConfig->bActive = 1 2026-09-29T12:01:40.602+0200, [PLC3]: m_pPlcConfig->bLogToFile = 1, m_pPlcConfig->ulLogFilter = 0xF 2026-09-29T12:01:40.602+0200, [PLC3]: m_pPlcConfig->bMotorola = 1, m_pPlcConfig->bLogin = 1 2026-09-29T12:01:40.602+0200, [PLC3]: m_pPlcConfig->ulBufferSize = 4800, m_pPlcConfig->bPreCheckIdentity = 0 2026-09-29T12:01:40.602+0200, [PLC3]: m_pPlcConfig->ulHwVersion = 0 2026-09-29T12:01:40.602+0200, [PLC3]: m_pPlcConfig->ulTimeout = 10000, m_pPlcConfig->ulNumTries = 3 2026-09-29T12:01:40.602+0200, [PLC3]: m_pPlcConfig->ulWaitTime = 10000, m_pPlcConfig->ulReconnectTime = 15000 2026-09-29T12:01:40.602+0200, [PLC3]: m_pPlcConfig->pszProjectName = ZE_PC03 2026-09-29T12:01:40.602+0200, [PLC3]: m_pPlcConfig->gwc->pszDeviceName = Tcp/Ip 2026-09-29T12:01:40.602+0200, [PLC3]: m_pPlcConfig->gwc->pszAddress = localhost, m_pPlcConfig->gwc->ulPort = 1210 2026-09-29T12:01:40.602+0200, [PLC3]: m_pDeviceDesc->pszName = Tcp/Ip 2026-09-29T12:01:40.602+0200, [PLC3]: m_pDeviceDesc->pszInstance = TCPIP_0_103_ 2026-09-29T12:01:40.602+0200, [PLC3]: m_pDeviceDesc->ulNumParams = 5 2026-09-29T12:01:40.602+0200, [PLC3]: parameter0 = Address, value0 = 192.168.0.103 2026-09-29T12:01:40.602+0200, [PLC3]: parameter1 = Port, value1 = 1201 2026-09-29T12:01:40.602+0200, [PLC3]: parameter2 = Motorola byteorder, value2 = Yes 2026-09-29T12:01:40.602+0200, [PLC3]: parameter3 = SymbolFilePath, value3 = C:\Windows\system32\ 2026-09-29T12:01:40.602+0200, [PLC3]: parameter4 = WriteThroughReadCache, value4 = 1 2026-09-29T12:01:40.602+0200, [PLC3]: ----------------------------------- 2026-09-29T12:01:40.602+0200, [PLC3]: CPLCHandler: Interface: IT_GATEWAY used 2026-09-29T12:01:40.603+0200, [PLC1]: m_pDeviceDesc->ulNumParams = 5 2026-09-29T12:01:40.603+0200, [PLC1]: parameter0 = Address, value0 = 192.168.0.101 2026-09-29T12:01:40.603+0200, [PLC1]: parameter1 = Port, value1 = 1201 2026-09-29T12:01:40.603+0200, [PLC1]: parameter2 = Motorola byteorder, value2 = Yes 2026-09-29T12:01:40.603+0200, [PLC1]: parameter3 = SymbolFilePath, value3 = C:\Windows\system32\ 2026-09-29T12:01:40.603+0200, [PLC1]: parameter4 = WriteThroughReadCache, value4 = 1 2026-09-29T12:01:40.603+0200, [PLC1]: ----------------------------------- 2026-09-29T12:01:40.603+0200, [PLC1]: CPLCHandler: Interface: IT_GATEWAY used 2026-09-29T12:01:40.623+0200, [PLC2]: CPLCHandler: Reconnect[1]: Reconnect cycle begin... 2026-09-29T12:01:40.623+0200, [PLC3]: CPLCHandler: Reconnect[1]: Reconnect cycle begin... 2026-09-29T12:01:40.623+0200, [PLC1]: CPLCHandler: Reconnect[1]: Reconnect cycle begin... 2026-09-29T12:01:40.623+0200, [PLC1]: CPLCHandler: Reconnect[1]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:01:40.623+0200, [PLC3]: CPLCHandler: Reconnect[1]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:01:40.625+0200, [PLC2]: CPLCHandler: Reconnect[1]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:01:40.850+0200, * ERROR: [PLC2]: CPLCHandler: Reconnect[1]: FAILED! Symbols were loaded offline 2026-09-29T12:01:40.850+0200, ERROR: [PLC3]: CPLCHandler: Reconnect[1]: FAILED! Symbols were loaded offline 2026-09-29T12:01:40.851+0200, [PLC2]: Open communication successful 2026-09-29T12:01:40.851+0200, [PLC2]: Starting adding new symbols 746... 2026-09-29T12:01:40.852+0200, [PLC3]: Open communication successful 2026-09-29T12:01:40.852+0200, [PLC3]: Starting adding new symbols 1168... 2026-09-29T12:01:40.875+0200, [PLC2]: Adding symbols finished 2026-09-29T12:01:40.875+0200, [PLC2]: CPLCHandler: Reconnect[1]: Reconnect cycle end 2026-09-29T12:01:40.881+0200, [PLC3]: Adding symbols finished 2026-09-29T12:01:40.881+0200, [PLC3]: CPLCHandler: Reconnect[1]: Reconnect cycle end 2026-09-29T12:01:45.928+0200, ERROR: [PLC1]: CPLCHandler: Reconnect[1]: FAILED! Symbols were loaded offline 2026-09-29T12:01:45.928+0200, [PLC1]: Open communication successful 2026-09-29T12:01:45.929+0200, [PLC1]: Starting adding new symbols 499... 2026-09-29T12:01:45.933+0200, [PLC1]: Adding symbols finished 2026-09-29T12:01:45.933+0200, [PLC1]: CPLCHandler: Reconnect[1]: Reconnect cycle end 2026-09-29T12:01:46.110+0200, OPC-Server started successful. 2026-09-29T12:01:50.625+0200, [PLC1]: CPLCHandler: Reconnect[2]: Reconnect cycle begin... 2026-09-29T12:01:50.625+0200, [PLC1]: CPLCHandler: Reconnect[2]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:01:55.625+0200, [PLC3]: CPLCHandler: Reconnect[2]: Reconnect cycle begin... 2026-09-29T12:01:55.625+0200, [PLC2]: CPLCHandler: Reconnect[2]: Reconnect cycle begin... 2026-09-29T12:01:55.625+0200, [PLC2]: CPLCHandler: Reconnect[2]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:01:55.625+0200, [PLC3]: CPLCHandler: Reconnect[2]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:01:55.625+0200, ERROR: [PLC3]: CPLCHandler: Reconnect[2]: FAILED! 2026-09-29T12:01:55.625+0200, [PLC3]: CPLCHandler: Reconnect[2]: Reconnect cycle end 2026-09-29T12:01:55.699+0200, ERROR: [PLC1]: CPLCHandler: Reconnect[2]: FAILED! 2026-09-29T12:01:55.699+0200, [PLC1]: CPLCHandler: Reconnect[2]: Reconnect cycle end 2026-09-29T12:01:59.341+0200, ERROR: [PLC2]: CPLCHandler: Reconnect[2]: FAILED! 2026-09-29T12:01:59.341+0200, [PLC2]: CPLCHandler: Reconnect[2]: Reconnect cycle end 2026-09-29T12:02:00.626+0200, [PLC1]: CPLCHandler: Reconnect[3]: Reconnect cycle begin... 2026-09-29T12:02:00.626+0200, [PLC1]: CPLCHandler: Reconnect[3]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:05.700+0200, ERROR: [PLC1]: CPLCHandler: Reconnect[3]: FAILED! 2026-09-29T12:02:05.700+0200, [PLC1]: CPLCHandler: Reconnect[3]: Reconnect cycle end 2026-09-29T12:02:10.626+0200, [PLC3]: CPLCHandler: Reconnect[3]: Reconnect cycle begin... 2026-09-29T12:02:10.626+0200, [PLC2]: CPLCHandler: Reconnect[3]: Reconnect cycle begin... 2026-09-29T12:02:10.626+0200, [PLC3]: CPLCHandler: Reconnect[3]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:10.626+0200, [PLC2]: CPLCHandler: Reconnect[3]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:10.626+0200, ERROR: [PLC2]: CPLCHandler: Reconnect[3]: FAILED! 2026-09-29T12:02:10.626+0200, [PLC2]: CPLCHandler: Reconnect[3]: Reconnect cycle end 2026-09-29T12:02:10.627+0200, [PLC1]: CPLCHandler: Reconnect[4]: Reconnect cycle begin... 2026-09-29T12:02:10.627+0200, [PLC1]: CPLCHandler: Reconnect[4]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:10.627+0200, ERROR: [PLC1]: CPLCHandler: Reconnect[4]: FAILED! 2026-09-29T12:02:10.627+0200, [PLC1]: CPLCHandler: Reconnect[4]: Reconnect cycle end 2026-09-29T12:02:15.693+0200, ERROR: [PLC3]: CPLCHandler: Reconnect[3]: FAILED! 2026-09-29T12:02:15.693+0200, [PLC3]: CPLCHandler: Reconnect[3]: Reconnect cycle end 2026-09-29T12:02:20.627+0200, [PLC1]: CPLCHandler: Reconnect[5]: Reconnect cycle begin... 2026-09-29T12:02:20.627+0200, [PLC1]: CPLCHandler: Reconnect[5]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:25.626+0200, [PLC3]: CPLCHandler: Reconnect[4]: Reconnect cycle begin... 2026-09-29T12:02:25.626+0200, [PLC2]: CPLCHandler: Reconnect[4]: Reconnect cycle begin... 2026-09-29T12:02:25.626+0200, [PLC2]: CPLCHandler: Reconnect[4]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:25.626+0200, [PLC3]: CPLCHandler: Reconnect[4]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:25.626+0200, ERROR: [PLC3]: CPLCHandler: Reconnect[4]: FAILED! 2026-09-29T12:02:25.626+0200, [PLC3]: CPLCHandler: Reconnect[4]: Reconnect cycle end 2026-09-29T12:02:25.699+0200, ERROR: [PLC1]: CPLCHandler: Reconnect[5]: FAILED! 2026-09-29T12:02:25.699+0200, [PLC1]: CPLCHandler: Reconnect[5]: Reconnect cycle end 2026-09-29T12:02:30.629+0200, [PLC1]: CPLCHandler: Reconnect[6]: Reconnect cycle begin... 2026-09-29T12:02:30.629+0200, [PLC1]: CPLCHandler: Reconnect[6]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:30.675+0200, ERROR: [PLC2]: CPLCHandler: Reconnect[4]: FAILED! 2026-09-29T12:02:30.675+0200, [PLC2]: CPLCHandler: Reconnect[4]: Reconnect cycle end 2026-09-29T12:02:34.710+0200, ERROR: [PLC1]: CPLCHandler: Reconnect[6]: FAILED! 2026-09-29T12:02:34.710+0200, [PLC1]: CPLCHandler: Reconnect[6]: Reconnect cycle end 2026-09-29T12:02:40.627+0200, [PLC2]: CPLCHandler: Reconnect[5]: Reconnect cycle begin... 2026-09-29T12:02:40.627+0200, [PLC2]: CPLCHandler: Reconnect[5]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:40.628+0200, [PLC3]: CPLCHandler: Reconnect[5]: Reconnect cycle begin... 2026-09-29T12:02:40.628+0200, [PLC3]: CPLCHandler: Reconnect[5]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:40.628+0200, ERROR: [PLC3]: CPLCHandler: Reconnect[5]: FAILED! 2026-09-29T12:02:40.628+0200, [PLC3]: CPLCHandler: Reconnect[5]: Reconnect cycle end 2026-09-29T12:02:40.630+0200, [PLC1]: CPLCHandler: Reconnect[7]: Reconnect cycle begin... 2026-09-29T12:02:40.630+0200, [PLC1]: CPLCHandler: Reconnect[7]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:40.630+0200, ERROR: [PLC1]: CPLCHandler: Reconnect[7]: FAILED! 2026-09-29T12:02:40.630+0200, [PLC1]: CPLCHandler: Reconnect[7]: Reconnect cycle end 2026-09-29T12:02:44.711+0200, ERROR: [PLC2]: CPLCHandler: Reconnect[5]: FAILED! 2026-09-29T12:02:44.711+0200, [PLC2]: CPLCHandler: Reconnect[5]: Reconnect cycle end 2026-09-29T12:02:50.631+0200, [PLC1]: CPLCHandler: Reconnect[8]: Reconnect cycle begin... 2026-09-29T12:02:50.631+0200, [PLC1]: CPLCHandler: Reconnect[8]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:55.628+0200, [PLC2]: CPLCHandler: Reconnect[6]: Reconnect cycle begin... 2026-09-29T12:02:55.628+0200, [PLC2]: CPLCHandler: Reconnect[6]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:55.629+0200, [PLC3]: CPLCHandler: Reconnect[6]: Reconnect cycle begin... 2026-09-29T12:02:55.629+0200, [PLC3]: CPLCHandler: Reconnect[6]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:02:55.629+0200, ERROR: [PLC3]: CPLCHandler: Reconnect[6]: FAILED! 2026-09-29T12:02:55.629+0200, [PLC3]: CPLCHandler: Reconnect[6]: Reconnect cycle end 2026-09-29T12:02:55.690+0200, ERROR: [PLC1]: CPLCHandler: Reconnect[8]: FAILED! 2026-09-29T12:02:55.690+0200, [PLC1]: CPLCHandler: Reconnect[8]: Reconnect cycle end 2026-09-29T12:02:59.692+0200, ERROR: [PLC2]: CPLCHandler: Reconnect[6]: FAILED! 2026-09-29T12:02:59.692+0200, [PLC2]: CPLCHandler: Reconnect[6]: Reconnect cycle end 2026-09-29T12:03:00.632+0200, [PLC1]: CPLCHandler: Reconnect[9]: Reconnect cycle begin... 2026-09-29T12:03:00.632+0200, [PLC1]: CPLCHandler: Reconnect[9]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:03:04.716+0200, ERROR: [PLC1]: CPLCHandler: Reconnect[9]: FAILED! 2026-09-29T12:03:04.716+0200, [PLC1]: CPLCHandler: Reconnect[9]: Reconnect cycle end 2026-09-29T12:03:10.628+0200, [PLC2]: CPLCHandler: Reconnect[7]: Reconnect cycle begin... 2026-09-29T12:03:10.628+0200, [PLC2]: CPLCHandler: Reconnect[7]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:03:10.629+0200, [PLC3]: CPLCHandler: Reconnect[7]: Reconnect cycle begin... 2026-09-29T12:03:10.629+0200, [PLC3]: CPLCHandler: Reconnect[7]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:03:10.629+0200, ERROR: [PLC3]: CPLCHandler: Reconnect[7]: FAILED! 2026-09-29T12:03:10.629+0200, [PLC3]: CPLCHandler: Reconnect[7]: Reconnect cycle end 2026-09-29T12:03:10.632+0200, [PLC1]: CPLCHandler: Reconnect[10]: Reconnect cycle begin... 2026-09-29T12:03:10.632+0200, [PLC1]: CPLCHandler: Reconnect[10]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:03:10.632+0200, ERROR: [PLC1]: CPLCHandler: Reconnect[10]: FAILED! 2026-09-29T12:03:10.633+0200, [PLC1]: CPLCHandler: Reconnect[10]: Reconnect cycle end 2026-09-29T12:03:14.762+0200, ERROR: [PLC2]: CPLCHandler: Reconnect[7]: FAILED! 2026-09-29T12:03:14.762+0200, [PLC2]: CPLCHandler: Reconnect[7]: Reconnect cycle end 2026-09-29T12:03:20.634+0200, [PLC1]: CPLCHandler: Reconnect[11]: Reconnect cycle begin... 2026-09-29T12:03:20.634+0200, [PLC1]: CPLCHandler: Reconnect[11]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:03:24.730+0200, ERROR: [PLC1]: CPLCHandler: Reconnect[11]: FAILED! 2026-09-29T12:03:24.730+0200, [PLC1]: CPLCHandler: Reconnect[11]: Reconnect cycle end 2026-09-29T12:03:25.630+0200, [PLC2]: CPLCHandler: Reconnect[8]: Reconnect cycle begin... 2026-09-29T12:03:25.630+0200, [PLC2]: CPLCHandler: Reconnect[8]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:03:25.631+0200, [PLC3]: CPLCHandler: Reconnect[8]: Reconnect cycle begin... 2026-09-29T12:03:25.631+0200, [PLC3]: CPLCHandler: Reconnect[8]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:03:25.631+0200, ERROR: [PLC3]: CPLCHandler: Reconnect[8]: FAILED! 2026-09-29T12:03:25.631+0200, [PLC3]: CPLCHandler: Reconnect[8]: Reconnect cycle end 2026-09-29T12:03:29.742+0200, ERROR: [PLC2]: CPLCHandler: Reconnect[8]: FAILED! 2026-09-29T12:03:29.742+0200, [PLC2]: CPLCHandler: Reconnect[8]: Reconnect cycle end 2026-09-29T12:03:30.635+0200, [PLC1]: CPLCHandler: Reconnect[12]: Reconnect cycle begin... 2026-09-29T12:03:30.635+0200, [PLC1]: CPLCHandler: Reconnect[12]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:03:34.717+0200, ERROR: [PLC1]: CPLCHandler: Reconnect[12]: FAILED! 2026-09-29T12:03:34.718+0200, [PLC1]: CPLCHandler: Reconnect[12]: Reconnect cycle end 2026-09-29T12:03:40.630+0200, [PLC2]: CPLCHandler: Reconnect[9]: Reconnect cycle begin... 2026-09-29T12:03:40.630+0200, [PLC2]: CPLCHandler: Reconnect[9]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:03:40.631+0200, [PLC3]: CPLCHandler: Reconnect[9]: Reconnect cycle begin... 2026-09-29T12:03:40.632+0200, [PLC3]: CPLCHandler: Reconnect[9]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:03:40.632+0200, ERROR: [PLC3]: CPLCHandler: Reconnect[9]: FAILED! 2026-09-29T12:03:40.632+0200, [PLC3]: CPLCHandler: Reconnect[9]: Reconnect cycle end 2026-09-29T12:03:40.637+0200, [PLC1]: CPLCHandler: Reconnect[13]: Reconnect cycle begin... 2026-09-29T12:03:40.637+0200, [PLC1]: CPLCHandler: Reconnect[13]: STATE_PLC_NOT_CONNECTED: tries to open channel... 2026-09-29T12:03:40.637+0200, * ERROR: [PLC1]: CPLCHandler: Reconnect[13]: FAILED! 2026-09-29T12:03:40.637+0200, [PLC1]: CPLCHandler: Reconnect[13]: Reconnect cycle end Ich kenne mich nicht so gut aus mit dem Thema OPC. Aber bis vor dem Windows Update hat es funktioniert.. Bin mit meiner Fehlersuche langsam am Ende...!
Last updated: 2026-09-29

Post by drbuzz on Communication Error (#0) for IFM controller ^{CODESYS Forge talk (Post)}
Hi Folks, Every time I use an IFM controller I always seem to run into a problem connecting to it. I get the Communications Error (#0). So I thought I would share some tips and tricks. Once the CANfox Cable (EC2112) cable driver is installed, you can use the yellow app in the sys tray to blink the lights on the cable. Confirm the cable works in the IFM maintenance software by connecting to the controller and reading the information on it. Make sure to download an OS into the controller (the light will go from a fast blink to solid green). In Codesys V2.3, the communication settings for the CR0401 is 250kBaud by default and Node ID 127. What got me, was I needed to reboot the computer after the cable driver install. Also if your application has canbus settings in it which are changed from default, after the controller is power cycled, the new Node ID and Baud will be in effect. I made a handy guide because too much time has been wasted on this. Programming IFM CR0401 Serial/Can Programming Cable • Connect IFM EC2112 CanFox programming cable with connector adapter. • Make sure cable is linked to VM (if using VM). • Install drivers for cable if not installed. o Download from IFM EC2112 site. https://www.ifm.com/ca/en/product/EC2112 • Once Installed, reboot computer. • In system tray, there should be a yellow icon that you can open and check on programming cable. Select the cable in the list and flash the lights to confirm it is working. Maintenance Software • Install IFM Maintenance Tool Software. o Download from IFM Site. https://www.ifm.com/ca/en/download/eco100_MaintenanceTool • Open IFM Maintenance software • Select Basic System • Select CAN cable • It will tell you if you don’t have a cable connected. • Use Wizard if needed. • Read Channel Parameter on the Settings page, or get Identity in the System Information > Identity. • Default Node is 127 on a new unit. Baud is 250kBaud (bits/sec) • Controller information should populate. • Controller green light should be blinking at 5hz (meaning OK but no OS, just bootloader). • Click Software > Load. • Open the OS file. Should match Codesys version selection (for CR0401 this is version 3). o Download OS file from IFM Website. https://www.ifm.com/ca/en/product/CR0401 o It is located at the top of the download under “software for CR0401”. o Select the file and load it… this will take a minute. • Once completed the unit should now have a solid green light o Solid green means the controller has an OS but no application is running. Codesys V2.3 Application • Codesys needs to be downloaded and installed from the IFM website as it has the IFM libraries and license to use the software. o Download from the IFM CR0401 page. o https://www.ifm.com/ca/en/product/CR0401 • Create new application with the correct IFM controller or Open Codesys application. • Keep in mind that the PLC Configuration on the Resources tab can be changed for the CAN communication interface… so changes to node and baud will take effect after the first download and reboot of the controller. • Go to “Online” in the top menu and change “Communication Parameters” o The Local dropdown shows the last configuration used. All other interfaces will show below it and need to be updated when changed or used. o Confirm Node ID is 127 for the first download.  The NodeID will change to whatever the program has after (in my case 125).  Node Send Offset should be default at 1536  Node Recv Offset should be default at 1408  Can bus Baudrate should be 250 kbaud.  Yes to Motorola Byte Order  Block Transfer should be false and note used (60 is default setting).  Can Card Driver should match the systray item which is Sie_USB. • If the system populated the other one, just update and relay the communication parameters. The software will usually bring up the available cable and driver. • Go to “Online” and Login to download. o Press Yes to Download Application. I hope this helps!
Last updated: 2025-03-21

Post by alimans on OPC-UA Server, Symbol Set: Raise an error: Object reference not set to an instance of an object. ^{CODESYS Forge talk (Post)}
Hi everyone, I just created a very simple library without any code and, added it to my very simple project. after adding this library, I get an error when I try to open "Symbol Set" in "OPC UA Server" in "Communication Manager". Here is the code of my POU in the library: FUNCTION_BLOCK POU VAR eCommand : (CMD_NONE:=0, CMD_RESET:=-1) INT := CMD_NONE; END_VAR Attached is the error that I get. I also noticed that by removing the enumeration variable above (eCommand), I can open the "Symbol Set" again. Anybody has any idea why this error is raised and how could I use enumeration variables without error in "OPC UA Symbol Set"?
Last updated: 2024-08-08

Post by timvh on Visuutils FbOpenDialog(Extended) not open Dialog from POUs ^{CODESYS Forge talk (Post)}
I had a similar situation recently where this didn't work, but read to the end to see the solution. The reason is that CODESYS only downloads visualisations (dialogs) if they are part of the project or linked to the project. In your case the dialog is not loaded onto the controller. But the solution is pretty simple: Double click on the Visualization Manager in your application. Select the Tab "Visualizations". Here you can see that your dialog is not "checked". Do this manually and load your project on the controller. Then your code should be able to open the dialog, because now it exists on the controller.
Last updated: 2024-09-28

Post by aeem on CODESYS Installer does't open ^{CODESYS Forge talk (Post)}
Just downloaded stand alone setup, deleted old installer and installed new. Looked up at the installation log - MSI (c) (48:E0) [19:33:49:483]: Windows Installer installed the product. Product Name: CODESYS Installer. Product Version: 2.4.0.3545. Product Language: 1033. Manufacturer: CODESYS GmbH. Installation success or error status: 0. Installer still not running EDIT: It's working. Somehow my Windows Event Log service was disabled. I restarted the service and everything is working fine right now. Click the Start Menu or (Windows key + R) Type services.msc into the search field (Enter) Open the Services app Find a service you want to disable/enable (Windows Event Log), and double click Click Start
Last updated: 2025-04-01

Post by timvh on CODESYS V3.5 SP15 Patch 2 won't open ^{CODESYS Forge talk (Post)}
This is almost always related to previously working with an additonal monitor. If you have placed CODESYS on that monitor, later start your laptop again and open CODESYS without that monitor, then Windows still places it in the previous position, but then it is not visible. So the solution by cehermanstad can be used to move it to the main screen to make it visible again. PS, another way to move it, is by pressing SHIFT and then right-click on the icon in the task bar, then select move. You can then move it with the arrow keys or your mouse.
Last updated: 2024-02-27

Post by ragarcia on Error while using Codesys SP19 Patch 4 on Windows 11 ^{CODESYS Forge talk (Post)}
Hello everyone, I just installed Codesys SP19 Patch 4 on Windows 11 and every time I open Codesys I get an error that says (Attached image): 'One or more issues ocurred with the current versio profile. Please contact the vendor to resolve these problems. The plug-in {....} (Exactly 4.15.0.0) is required by the current version profile., but has not been installed. It is highly recommended that the tools is terminated. Do you wanto to terminate now?' I cannot install any package since I get this error everytime I open or try to install any package. Can someone help me please, thanks in advanced
Last updated: 2024-03-26

Post by jroddball79 on PM556-TP-ETH — How to change IP address without overwriting the PLC program? ^{CODESYS Forge talk (Post)}
Still looking for a solution. I have gathered more information that might help: Device: ABB AC500 PM556-TP-ETH Firmware version: 2.4.2.14993 (dated 2014) Open ports confirmed: 502 (Modbus TCP), 1200 and 1201 (CODESYS runtime). SSH (22) and HTTP (80) are not reachable. No SD card in the PLC. I can connect via Automation Builder using the current IP and Online Login works, but I have no original source project available. Automation Builder requires a full PLC download to apply IP changes, which we want to avoid as it would overwrite the running program. Any guidance on how to change the IP without a full download would be greatly appreciated. I am also open to solutions using third party tools, DCP protocol, or scripts. Thank you
Last updated: 2026-05-22

Post by jroddball79 on PM556-TP-ETH — How to change IP address without overwriting the PLC program? ^{CODESYS Forge talk (Post)}
We have checked open ports. SSH (22) and HTTP (80) are not reachable. The only open ports are: 502 (Modbus TCP — used for lighting control) 1200 (CODESYS runtime) 1201 (CODESYS runtime) We can connect via Automation Builder using the current IP, but we don't have the original project source — only an empty project. This is why we are afraid of doing a full download, as it would overwrite the running application. Is there any way to change the IP through the CODESYS runtime protocol on ports 1200/1201 without affecting the running program?"
Last updated: 2026-05-20

Post by jegerjon on XY Chart ^{CODESYS Forge talk (Post)}
I have a XY chart in a visualization that is working fine, all lines are presented correctly. When I present the XY chart visualization in a frame, it seemes as no values are recorded, all lines are zero. When i open the visualization containing the XY chart in e!cockpit i see the lines are presented correctly but still not in the frame. Any ideas?
Last updated: 2023-08-30

Post by kdasystems on WebVisu on mobile devices ^{CODESYS Forge talk (Post)}
Hello I have a problem with web visu. When I open it to normal screen it is with good quality, but when I use it on mobile phone or tab then it is really bad quality, almost not possible to read the information. Can somebody help me what are the exact settings in the visu manager for this
Last updated: 2023-09-13

Post by transmin01 on EtherCat Master cannot open network adaptor on Win10x64 target ^{CODESYS Forge talk (Post)}
Hi, If I utilise an EtherCat master with a Beckhoff EK1100 coupler on a Win10x64 target I get a "Network Adaptor could not be opened" error. I have tried this on both a VM and a physical PC. Has anyone experienced this issue? Regards Trevor
Last updated: 2023-09-14

Post by manuknecht on Specify Input Configuration "OnDialogClosed" Action to only react to certain Dialogs ^{CODESYS Forge talk (Post)}
Thanks for your responses. The close listener sounds like an interesting approach, will have to see what I can do with it. I actually solved it as suggested by sturmghost by setting an enum variable to a certain state as soon as I open a dialog. This way I always know which dialog was opened last.
Last updated: 2023-10-02

Post by ivanmaltar on Update Raspberry Pi error ^{CODESYS Forge talk (Post)}
Hello, from today, I got an error when I try to open 'Tools/Update Raspberry Pi' and I got this error: There is no value with the specified name associated with this subkey. This feature worked before. I did not do any changes to Codesys installation. Codesys version is SP19.1, and CODESYS Control For Raspberry Pi 4.8.0.0
Last updated: 2023-11-30

Post by timvh on CAN Open Manager - varible of SYNC ^{CODESYS Forge talk (Post)}
You can enable "Sync Producing" in the configuration of the CANopen Manager. Then this manager will send a SYNC message every interval you set. Depending on your PDO configuration, the CAN nodes can send a PDO on every Sync (cyclic-synchronous). If this is not possible, then as alternative you can send a low level CAN message with COB-ID 16#80.
Last updated: 2024-11-05

Post by hemuv on Open Numpad with VU.FbOpenDialogExtended ^{CODESYS Forge talk (Post)}
Hello Barton, I try to log the changes in Numpad (upon Ok button pressed) that an Element name/Element text variable is changed from so to so. How to get the Element name (or text fields Text Variable) from where the Numpad is called? Numpad is Invoked from Inputconfiguration->onMouseDown->Write a variable. Thanks
Last updated: 2024-11-07

Post by russmann on Bitmap image in the codesys visualization doesn't show up in web visu ^{CODESYS Forge talk (Post)}
Bitmap Image (outlined in Red in attachment) with it’s configure window open in Codesys 2.3.9.55. Image doesn’t show-up in on-line Web Visu (this project only). No problem with bitmap images in all other codesys 2.3 projects. Web visu in Internet Explorer since 2.3 Web visualizations don't work in Edge.
Last updated: 2024-11-12

Post by timvh on library is not available ^{CODESYS Forge talk (Post)}
1) In the library manager of your project select "Download missing libraries". 2) In the library manager open the "Placeholders" dialog. In here find the Placeholder which is not referenced to a specific library yet. Click in this line on the Library column and select the latest version of this library.
Last updated: 2025-03-24

Post by timvh on Execute Codesys Tests with python ^{CODESYS Forge talk (Post)}
If you want to use the Test Manager, I prefer to start all the tests through the scripts of this manager. So open from there the projects, load it and run it. If you also want to use Python scripts to access CODESYS functionality, while executing a Test Manager script, then also start them from the Test Manager commands.
Last updated: 2025-07-23

Post by mqi2r on Newly created texlists wont appear in the selection dropdown ^{CODESYS Forge talk (Post)}
For anyone with this issue, you may need to: Open the text list properties (right-click the text list once you create it). Select the Text List tab. Change the Download by option to Visualization. I was fighting this for so long. Once you do that, you should find your text list appears in the drop down when editing a visualisation.
Last updated: 2025-08-19

Sort by relevance or date