I
am trying to setup a connection between some software developed for an
asset and WinCC v6.0 SP4 by passing values using OPC. The software has
been developed using National Instruments Variable Engine. I have
verified the integrity of the tags by using Variable Manager and am able to create a system parameter, and import the
necessary tags into WinCC, but they do not return a value (quality code
of '8' and a message reading 'no connection to the PLC')
The setup is as follows:
The system is made up of 1 server and 2 clients on the same domain
The
software that has been developed is installed on one of the client
machines because this is the machine that the hardware is conneced via
a RS232 connection
The relevant permissions for DCOM have been applied for OPCEnum and NI Variable Engine on the client machine and the server
Would the server settings require changing as everything is located on the client machine?
Is there anything that I am missing, or has anyone had a similar experience?
