National Instruments BridgeVIEW What Is the BridgeVIEW System Architecture?

Chapter 1 Introduction

BridgeVIEW User Manual 1-8 © National Instruments Corporation

What Is the BridgeVIEW System Architecture?

The BridgeVIEW system contains three sets of processes: the user HMI

Application, the BridgeVIEW Engine, and industrial automation device

servers, as shown in Figure 1-1. These processes interact through a

client-server relationship.

Figure 1-1. BridgeVIEW Architecture

The BridgeVIEW Engine, with any device servers, runs as a separate

process independent of your HMI application. Your HMI application is

built as a collection of VIs developed using the G programming language.

BridgeVIEW maintains a high performance Real-Time Database in

the BridgeVIEW Engine that provides information to client applications.

The BridgeVIEW Engine also performs other functions including

the following:

• Data acquisition, engineering unit (EU) scaling, and alarm processing

• Alarm and event logging

• Historical data collection and trending

EU scaling converts the Raw Range value from the device server to the

engineering value used in the user application and vice versa.

The end user of the BridgeVIEW system sees and interacts with an

HMI. The HMI application is a collection of VIs that you build with the

G programming language in BridgeVIEW. You build VIs that interact