RSView Supervisory Edition Installation Guide

3Planning an applicationThis chapter describes:• understanding the process you are automating.• planning the layout of the network.• planning a redundant system.• planning communications.• designing an HMI tag database, and planning alarms.• designing graphic displays.• planning run-time language switching.• planning how to use trends.• designing a secure system.• designing a system for multiple users.• designing a system that is easy to deploy and maintain.• integrating with other applications, and customizing the system.Understanding the process you are automatingFor a complete and detailed understanding of the process you’re automating, gatherinformation from a variety of sources:• Talk to operators and other experts who are going to use the system, to find out whatinformation they need to optimize plant operations.• Talk to management and information systems staff, to find out what information theyneed to support planning decisions.• Break up each section of the process into its constituent parts.• Determine what types of data servers you’ll be using.• Determine whether parts of the process warrant some level of redundancy.• Identify the process variables you need, and their locations in the programmablecontrollers.3 • Placeholder3-1