Hello I have recently beeing devolping a data collector to connect to an opc server that represents the simulation of an opc enabled control. For the first step I have to query all registered variable nodes from server for there can be user defined nodes in the address space. I have the problem that some nodes work, some would not. Even in the exsample client console and in my application. I need now to determine wheather its a client or server issue. For first step I browsed nodes with UA Expert OPC UA client and recieved the subnodes of the specific nodes after a certain timespan. Also there was on occurance that I browsed the server simoultanously with my code running in debugger and UA Expert would crash. The used client framework is 2.2.2-638. The server has been provided by the company softing who sold us your framework as a solution for OPC development with Java. To examine this issue I have copied the sample console client output window here beyond.

0
ServerState changed from Running to CommunicationFault
com.prosysopc.ua.ServiceException: Bad_SecureChannelClosed (code=0x80860000, description=”The secure channel has been closed.”) ServiceResult=Bad_SecureChannelClosed (0x80860000) “The secure channel has been closed.”
Caused by: org.opcfoundation.ua.common.ServiceResultException: Bad_SecureChannelClosed (code=0x80860000, description=”The secure channel has been closed.”)
com.prosysopc.ua.client.ServerConnectionException: Server not connected: opc.tcp://10.90.108.155:4880 [http://opcfoundation.org/UA/SecurityPolicy#None,None]
——————————————————-
– Enter node number to browse into that
– Enter a to show/hide all references
com.prosysopc.ua.client.ServerConnectionException: Server not connected: opc.tcp://10.90.108.155:4880 [http://opcfoundation.org/UA/SecurityPolicy#None,None]