
Using the Modbus Ports
114
870USE10110 July 2004
Single Master/
Slave Option 1
The following illustration shows components used in a four-wire single master/slave
cabling scheme. In this view, a master cable (#3) is used on both sides of the master.
Each Momentum module must include a processor adapter or option adapter with a
Modbus RS485 port.
Legend:
1
2
3
3
2
2
4
5
1
4
2
Slave Master Slave Slave Slave
Note: Each cable has different colored boots. The color of the boots signifies the
cable’s function.
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
Comentarios a estos manuales