W-2: Com Port 1 (Ethernet) Wiring
Com Port 1 (Ethernet) supports 10/100 Base-T Ethernet with an RJ-45 style connector.
You can use both straight and cross over cables with Com Port 1.
Wiring Strategy
β’ There are two wiring methods to connect to devices
which support Modbus TCP protocol.
β’ Case 1: Connect Com Port 1 to a device that supports
Modbus TCP protocol directly such as a PC.
β’ Case 2: Connect Com Port 1 to other devices that support
the Modbus TCP protocol via a switch or hub.
Case 1: Connect Com Port 1 to a device that supports the Modbus TCP protocol
directly such as a PC.
In this illustration an Ethernet PLC unit is connected directly to a PC.
W-2
Port 1 Pin Descriptions
1 TX+ Transmit Data (+)
2 TX- Transmit Data (-)
3 RX+ Receive data (+)
4 NC Not connected
5 NC Not connected
6 RX- Receive Data (-)
7 NC No connection
8 NC No connection
1
8
Type Jack
CLICK PLC Hardware User Manual, 6th Edition, Rev. F β C0-USER-M
4β17
Chapter 4: PLC Communications