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PLC CommuniCations

Chapter

In This Chapter...

Introduction ............................................................................................................... 4–2

PLC Communication Ports Speciﬁcations .................................................................4–3

LED Status Indicators .................................................................................................4–5

3 Steps to Using the CLICK PLC Communications ...................................................4–7

Typical Communication Applications ........................................................................4–8

W-1: Com Port 1 & 2 (RS-232) Wiring ....................................................................4–12

W-2: Com Port 1 (Ethernet) Wiring ........................................................................ 4–17

W-3: Com Port 3 Wiring .......................................................................................... 4–19

C-1: Com Port 1 (RS-232) Setup .............................................................................4–20

C-2: Com Port 1 (Ethernet) Setup ..........................................................................4–21

C-3: Com Port 2 Setup (Modbus RTU) ...................................................................4–22

C-4: Com Port 2 Setup (ASCII) ................................................................................ 4–23

C-5: Com Port 3 Setup (Modbus RTU) ...................................................................4–24

C-6: Com Port 3 Setup (ASCII) ................................................................................ 4–25

P-1: Modbus Slave (Server) Programming .............................................................4–26

P-2: Modbus Master Programming (Modbus RTU) ...............................................4–29

P-3: Modbus Client (Modbus TCP) Programming .................................................4–34

P-4: ASCII Receive Programming ............................................................................4–40

P-5: ASCII Send Programming ................................................................................4–43

AutomationDirect CLICK Series User Manual

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