Mapping the Backplane Extension

Overview

Two backplanes must be configured with identical hardware, software, and firmware, and the modules must be positioned identically in the backplanes. Either PLC may function as a primary or a standby PLC.

NOTE: Refer to the Premium and Atrium using EcoStruxure™ Control Expert, Processors, racks and power supply modules, Implementation Manual and Electrical installation guide for more information.

Multiple I/O with Scanning ETY

The following graphic shows an architecture example with 2 ETYs configured of I/O scanning.

Ethernet switch

Ethernet TCP/IP

CPU sync link

Ethernet I/O scanner #1

Ethernet I/O scanner #2

NOTE: Ethernet I/O scanner # 1 is a monitored ETY with an ETY sync link connection.