Product specifications

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Reference Manual
00809-0200-4420, Rev HB
Appendix D: Redundancy
January 2015
Figure D-5. Simplex RS-485 Architecture
Note
In either a simplex or dual RS-485 architecture, the primary Ethernet ports can be connected to
an asset management network to provide connectivity to AMS Device Manager or AMS Wireless
Configurator.
Dual RS-485
A Dual RS-485 host connection support Modbus RTU protocol. When using this architecture,
connect the secondary Ethernet port on Gateway A directly to the secondary Ethernet port on
Gateway B. Then wire the RS-485 ports for both Gateways separately to dual serial cards at the
host system. See Figure D-6 Dual RS-485 Architecture.
A. Engineering Station
B. Process Control Network
C. Controller and I/O
D. Serial Card
E. RS-485 Bus
F. Secondary Ethernet
A
B
E
D
C
F