Redundancy Structures - Emerson Bettis XTE3000 Installation, Operation And Maintenance Manual

Installation, Operation and Maintenance Manual
MDE 256 Rev. 1
6.1

Redundancy Structures

The Slave redundancy specification (Order No. 2.212) foreseen two different type of redundancy
architectures: the System redundancy and the Flying redundancy.
Figure 8
In the System redundancy layout, the two interfaces may have the same address because the two
interfaces are on different channels.
A synchronization method must be active between the Master stations to take the information from
the Primary Slave.
Figure 9
In the Flying redundancy layout, the two interfaces shall have different addresses because the two
interfaces are on the same channel.
The backup address shall be PRIMARY ADDRESS+64.
Slave Redundancy (DP-V2)
System Redundancy
Backup
Master
Channel 2
Flying redundancy
Backup
Master
Section 6: Slave Redundancy (DP-V2)
Primary
Master
Channel 1
Primary
Master
March 2022
11