Dual Network Redundancy Diagnostics

Introduction

The BMENOP0300 module supports dual network redundancy for high reliability communications. The module supports the following two level solutions for dual networks:

one module: The BMENOP0300 module supports multiple IP segments with unique physical interfaces, so you can use one module to support two IP segments. SCADA decides which IP segment to use as primary and secondary network. This solution does not require additional application programming because the two IP segments share one database and state machine.

two modules: This solution, in which the two modules are configured within two different networks, requires additional application programming to confirm that the two modules synchronize with each other. The two modules use one dedicated elementary function block to simplify the programming process. Refer to the documentation for the IEC 61850 Configuration Tool for more information.

CAUTION

RISK OF BROADCAST STORM

Do not connect more than one of the same module in a local rack to both the Ethernet backplane and an Ethernet network. Connecting more than one of the same module to both the backplane and an Ethernet network can cause a broadcast storm.
You can connect one of each of the following modules to the Ethernet backplane and an Ethernet network:
- a BME•58•0•0 CPU module that manages an EIO main ring
- a BMENOS0300 network option switch module
- a BMENOC03•1 communication module
- a BMENOP0300 IEC 61850 communication module

Failure to follow these instructions can result in injury or equipment damage.