beautypg.com

Schneider Electric Processor Adapter User Manual

Page 127

background image

Using the Modbus Ports

870 USE 101 10 V.2

127

Two-Wire Cabling Schemes for Modbus RS485 Networks, Continued

Cable

All devices are connected with the same pin-for-pin cable, such as the Modbus
Plus or Modbus RS485 Short Interconnect Cable or any Cat. 5 4-Twisted Pair
Ethernet cable AWG#24. A master/slave system using 2-wire cabling does not
require the special master communication cable.

Multimaster/
Slave Cabling

The following illustration shows components used in a multimaster/slave network.
Each Momentum module must include a Processor Adapter or Option Adapter with
a Modbus RS485 port.

Continued on next page

Description

Part Number

Modbus Plus or Modbus RS485 Short Interconnect Cable.
Color code - black

170 MCI 020 10

Label

Description

Part Number

1

Terminating resistor plug.
Color code - red

170 XTS 021 00

2

Modbus RS485 connector “T” (DB9 base)

170 XTS 040 00

3

Modbus Plus / Modbus RS485 Short Interconnect Cable.
Color code - black

170 MCI 020 10

4

Modbus RS485 connector “T” (RJ45 base)

170 XTS 041 00

5

Terminating shunt plug.
Color code - blue

170 XTS 042 00