Using the Modbus Ports

Four-Wire Cabling Schemes for Modbus RS485 Networks, Continued

Single Master/ The following illustration shows components used in a four-wire single master/slave

Slave Option 2 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

 

 

 

 

 

 

 

 

 

870 USE 101 10 V.2

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Schneider Electric Processor Adapter manual 125