Greetings,
New to the whole OPC thing so...
I have installed kepserver ex on a computer and wrote a quick test app using advanced HMI that grabs a integer tag from kepserver using OPC and displays it on screen.
If I run the test program on the same computer as the OPC server, it works.
If I run it on a different computer across the network, it says 'object not set to an instance of...' and the program doesn't work.
Also I tried matrikon OPC test and I get similar results. On OPC server machine I can see all tags. Different machine I get a connection failure.
What am I doing wrong? Thanks!
New to the whole OPC thing so...
I have installed kepserver ex on a computer and wrote a quick test app using advanced HMI that grabs a integer tag from kepserver using OPC and displays it on screen.
If I run the test program on the same computer as the OPC server, it works.
If I run it on a different computer across the network, it says 'object not set to an instance of...' and the program doesn't work.
Also I tried matrikon OPC test and I get similar results. On OPC server machine I can see all tags. Different machine I get a connection failure.
What am I doing wrong? Thanks!