OPCUA client connection

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DmSilkin
Posts:23
Joined: Wed Jun 03, 2020 9:26 am

OPCUA client connection

Post by DmSilkin »

Hello!
I have a project with OPCUA server and 2 OPCUA clients. Sometimes the network connection between clients and its remote servers is cut:
WCCOAopcua (81), 2020.12.24 22:04:15.879, SYS, WARNING, 5/opcua, OpcUaCComm в функции read, невозможно чтение от узла i=2267 @ opc.tcp://server#2 (Код статуса: BadTimeout)
WCCOAopcua (80), 2020.12.24 22:04:17.880, SYS, WARNING, 5/opcua, OpcUaCComm в функции read, невозможно чтение от узла i=2267 @ opc.tcp://server#1 (Код статуса: BadTimeout)


And after the reconnect, clients can't establish the connection to servers:

WCCOAopcua (80), 2020.12.24 22:06:02.240, SYS, WARNING, 5/opcua, OpcUaCComm в функции read, невозможно чтение от узла i=2267 @ opc.tcp://server#1(Код статуса: BadConnectionClosed)
WCCOAopcua (80), 2020.12.24 22:06:02.240, SYS, WARNING, 5/opcua, OpcUaCComm в функции read, невозможно чтение от узла i=2259 @ opc.tcp://server#1 (Код статуса: BadConnectionClosed)
WCCOAopcua (81), 2020.12.24 22:06:02.412, SYS, WARNING, 5/opcua, OpcUaCComm в функции read, невозможно чтение от узла i=2267 @ opc.tcp://server#2 (Код статуса: BadConnectionClosed)
WCCOAopcua (81), 2020.12.24 22:06:02.412, SYS, WARNING, 5/opcua, OpcUaCComm в функции read, невозможно чтение от узла i=2259 @ opc.tcp://server#2 (Код статуса: BadConnectionClosed)


It should be mentioned that after reconnect i can connect to those servers with other OPCUA client, like UAExpert.
Managers reboot not always help. Sometimes only server reboot helps to reestablish the connection.
What can cause the problem? I'm using WinCCOA 3.15 P027
Thanks in advance!

leoknipp
Posts:2928
Joined: Tue Aug 24, 2010 7:28 pm

Re: OPCUA client connection

Post by leoknipp »

Sorry but we cannot read the russian textes.
In future please tranlate the textes before copying them to the WinCC OA Portal.

I have translated the textes and the error message is "OpcUaCComm in read function, unable to read from node i = 2267 @ opc.tcp: // server # 1 (Status code: BadConnectionClosed)".
Possibly with the debug flag "-dbg 11" you can get more information.

Best Regards
Leopold Knipp
Senior Support Specialist

2 posts • Page 1 of 1