Manual

P/N 136689 7
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: [phone]
DX80
Reference Guide
Network Basics
The DX85 Expanded Remote I/O device and many other Modbus slave devices cannot be used on a network without a Modbus master,
so the DX80 Gateway includes Modbus master functionality. Because a Modbus network can only have one master, the network cannot
include the PLC if the Gateway must have direct control over DX85 devices (see Network 2).
The Gateway is configured with a table of external connections that allow the DX85 Expanded I/O devices, as Modbus slaves, to
communicate with the wireless Nodes.
For examples of additional Modbus RTU configurations, please refer to Banner document p/n 133601, DX80 System Layouts.
Network 2: Gateway as Modbus Master
Wireless Network
Device 1
Wireless Master
Device (Device 0)
Modbus Network
Slave ID 2
Slave ID 3
Modbus
Master
RS 485
Cable
Device 2