Compact Builder 6.1 + Firewall
I had a problem with AC800M OPC Server with Compact Builder 6.1 and firewall.
The AC800M OPC Server is installed on server machine (xxx-srv01) and the setup wizard is illustrated in 'Setup Wizard OPC.PNG' .
The Compact Builder 6.1 is installed on client machine and the setup wizard is illustrated in 'Setup Wizard CB.PNG' .
The client machine is connected to xxx-srv01 in domain.
The firewall is on and all DCOM OPC rules are implemented. Communication between OPC Client App and AC800M OPC Server is ok under firewall.
But, when I modified and then downloaded a project, I have the following problem:
When the firewall is off the generation of *.cdoXml, *.rrsXml and *.xsXml is immediately thus OPC Client App do not lost communication with OPC Server.
When the firewall is on the generation of these files are delayed (about 10s and 30s) thus OPC Client App lost communication and then establishes.
All ports used and illustrated in manual of Compact builder are in firewall rules...
Could you help me why theses files are delayed to generate ?
Thank a lof
look like your firewall (*) does some "deep packet inspections" and tries to analyse OPC data
Almost any AV solutions has some kind of this feature and some (most ?) security firewall appliances too.
Please use the simpler windows firewall