Introduction
In this blog post we discuss the Connectivity between SAS<sup>®</sup> Event Stream Processing Studio and OPC UA Server. Keep reading to learn more about SAS<sup>®</sup> Event Stream Processing Studio and OPC UA Server Connectivity
What does SAS® Event Stream Processing do and why it is important?
SAS<sup>®</sup> Event Stream Processing analyses and understands millions of events per second, detecting patterns of interest as they occur. The results show the correct actions to take, what alerts to issue, which data to store and which events to ignore. Get value out of streaming data from sensors, devices, transmissions, operational transactions, etc. – while the data is in motion. With sub-millisecond response times, the software assesses data streams using a suite of pre-built operators, functions, routines and advanced analytics. So you can derive insight into events and take appropriate actions.
What is OPC UA Server?
Open Platform Communication Unified Architecture (OPC UA) is a machine to machine communication protocol for industrial automation developed by the OPC Foundation. Hardware devices send the data to PLC (Programmable Logic Controller) using Sensors after that PLC forwards that data to OPC UA Server and OPC UA reflects the real-time data on server.
Implementation for Connectivity between OPC UA and SAS® ESP
- opcuaendpoint – Example,
- opcuanamespaceuri – Example,
- opcuanodeids – Example, <{“0″:”value”,”itnm”:”project.process.water_flow”}>
Step 1: Drag the “Source” window from left pane of a ESP project.
Step 2: Create new Input Data (Publisher) Connector and select OPC UA Connector.
Step 3: Fill the appropriate opcuaendpoint and then click on Properties.
Figure 1: Entering the opcuaendpoint
Figure 2: Defining Property Variables
to define the schema) 
Figure 3: Defining Output Schema
Figure 4: Testing ESP Model/span>
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