The UA SDK is a set of libraries that supports you in writing portable OPC UA Servers. The UA SDK actually consists of three SDKs, a Server SDK and a Client SDK and a PubSub-Addon. This PubSub AddOn consist of a new PubSub-Stack and a SDK specific integration module.

The PubSub-Module is used to configure the PubSub-Stack. It can also be used to integrate UA data.

The PubSub-Stack contains the UA Binary encoder/decoder and the transport binding to UDP protocol.