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Hello all
A client needs to know he port number of the PcVue OPC Server.
Does anyone of you knows it ?
BR
Loick
Posted : 24/09/2013 7:37 pm
Hello Loïck,
Everything I'm writting has to be checked by Jacques.
OPC is COM-based. The port is dynamically attributed by the End Point Mapper (epmap). And that's true for every OPC servers.
EPMAP is listening the TCP port 135.
If you want to do DCOM, you need then to authorize port 135 on both server and client devices, and you also need to authorize the OPC server's applications.
If it's for local use, you don't need to do anything.
Posted : 24/09/2013 8:09 pm
Ok thanks Florent
Posted : 25/09/2013 2:17 pm
Here is the answer from Jacques
This is partially true:
- TCP and UPD ports 135 are systematically used
- an additional port is used by the process. The port number is not static, but its range can be defined in the registry.
For further details: http://support.microsoft.com/kb/467787
Posted : 26/09/2013 7:36 pm