Schneider Electric Processor Adapter User Manual
Page 125
Using the Modbus Ports
870 USE 101 10 V.2
125
Four-Wire Cabling Schemes for Modbus RS485 Networks, Continued
Single Master/
Slave Option 2
The following illustration shows components used in a four-wire single master/slave
cabling scheme. In this view, the master is at one end of the network and is
connected by a single master cable (#3). Terminating resistors (#1) are used at
both ends of the network.
Each Momentum module must include a Processor Adapter or Option Adapter with
a Modbus RS485 port.
Label
Description
Part Number
1
Terminating resistor plug
170 XTS 021 00
2
Modbus RS485 connector “T” (DB9 base)
170 XTS 040 00
3
Modbus RS485 Master Communication Cable
170 MCI 041 10
4
Modbus Plus / Modbus RS485 Short Interconnect Cable 170 MCI 020 10
5
Modbus RS485 connector “T” (RJ45 base)
170 XTS 041 00