Momentum Modbus Plus 170 PNT Series Guide de l'utilisateur Page 103

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Vue de la page 102
Using the Modbus Ports
870 USE 101 00 V.2.2
91
Four-Wire Cabling Schemes for Modbus RS485 Networks,
Continued
Single Master/
Slave Option 2
The following diagram 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
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