Using the Modbus Ports
870 USE 101 10 V.2 119
Section 4.2Modbus Port 2
Overview
Purpose Five Momentum components offer this port:
l171 CCS 780 00 Processor Adapter
l171 CCC 780 10 Processor Adapter
l171 CCC 980 20 Processor Adapter
l171 CCC 980 30 Processor Adapter
l172 JNN 210 32 Serial Option Adapter
This section describes the port and provides guidelines for Modbus RS485
networks.
In This Section This section contains the following topics:
Topics P age
Modbus Port 2 120
Four-Wire Cabling Schemes for Modbus RS485 Networks 123
Two-Wire Cabling Schemes for Modbus RS485 Networks 126
Cable for Modbus RS485 Networks 129
Connectors for Modbus RS485 Networks 132
Terminating Devices for Modbus RS485 Networks 134
Pinouts for Modbus RS485 Networks 135