Rosemount Smart Wireless Gateway Specifications download pdf (Page 78)

Reference Manual

00809-0200-4420, Rev HB

Appendix D: Redundancy

January 2015

Figure D-3. Redundancy Setup Connections

Once the Gateways have finished the pairing process, Gateway A will appear as the current

active Gateway on the left hand side and Gateway B will be the standby Gateway on the right

(note that left/right hand appearance can be changed on the Redundancy System Settings

page). If significant configuration changes need to be downloaded to the standby Gateway, it

may temporarily go offline shortly after the pair process is complete. This is expected behavior

and does not represent instability in the system.

D.4 Mounting and connections

Redundant Gateways follow similar mounting and connection practices as a standalone

Gateway. Please refer to Section 3: Mounting and Connection for more information. In addition

to the standard practices, the following considerations should be taken when installing

redundant Gateways.

Mounting

The redundant Gateways should be mounted in a location that allows convenient access to the

process control network as well and provides good coverage for the wireless field network.

The redundant Gateway antennas should be mounted at the same height and be spaced

between 3 ft to 9 ft (1m to 3m) horizontally. This is to ensure that they provide identical

coverage for the wireless field network and to help eliminate coverage gap in the event of a

switch over.

Ethernet

An Ethernet connection to the host system will support Modbus TCP, OPC, AMS

Wireless

Configurator, and HART IP protocols. When using this architecture, connect the secondary

A. Gateway A

B. Gateway B

C. PC / Laptop

E. Primary Ethernet

F. Secondary Ethernet

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Rosemount Smart Wireless Gateway Specifications Page 78