P-3: Modbus Client (Modbus TCP) Programming
Instructions
The CLICK PLC has two instructions to exchange data with Modbus servers through the Com
Port 1; the Receive and Send instructions.
• Receive
instruction: Read data from external Modbus server.
• Send
instruction: Write data to external Modbus server(s).
To use these instructions, double click Receive or Send in the Instruction List window as
shown below.
Select Com Port 1 that you are going to use.
P-3
Select Com Port 1
Double click Receive or Send
in the Instruction List to use it
in the ladder program.
Instruction List
CLICK PLUS PLC Hardware User Manual, 1st Edition, Rev. B – C2-USER-M
4-36
Chapter 4: PLC Communications
