I am developing an OPC client and need a free OPC server that can both simulate values and set values static. Is there such a server freely available?
I use Matrikon OPC explorer
you can download it for free, just need to register, it can simulate server and client on the same machine and also access servers remotely, i tested it on several OS along with several OPC servers.
I am developing OPC client->server->device Emulator (C++)