Redundancy

Redundancy in Plant SCADA can be defined at many different levels. When building redundancy for your system, you need to consider the degree of protection necessary to meet your requirements. This will involve the following:

• Deciding how important each processes is

• Determining the overall likelihood of system downtime, and the processes and equipment that will take the longest to restore to service

• Deciding which components require redundant operation

• Considering design and maintenance requirements.

The section covers the following redundancy concepts:

• I/O Server Redundancy

• I/O Device promotion

• Redundancy and Persistence

• Data Path Redundancy

• Network Redundancy

• Reports, and Trends Server Redundancy

• Alarm Server Redundancy

  Note: Using the Setup Wizard will allow you to define the level of redundancy you require by defining the function of each computer (See Run a Project using the Setup Wizard).

See Also

Reports, and Trends Server Redundancy

File Server Redundancy

Redundancy of Standalone Systems