AutomationDirect C0-USER-M Manual page 12

System Wiring Strategies ........................................................................................ 3-26
PLC Isolation Boundaries ........................................................................................ 3-26
Powering I/O Circuits ............................................................................................. 3-27
Sinking/Sourcing Concepts .................................................................................... 3-28
I/O "Common Terminal" Concepts ........................................................................ 3-29
DC Input Wiring Methods ...................................................................................... 3-30
DC Output Wiring Methods ................................................................................... 3-30
Relay Outputs - Wiring Methods ............................................................................ 3-32
Relay Outputs - Transient Suppression for Inductive Loads in a Control System ..... 3-33
Analog I/O Configuration ....................................................................................... 3-37
Terminal Block Wiring - Analog PLC Units .............................................................. 3-37
Terminal Block Wiring - Expansion Analog I/O Modules ......................................... 3-39
Configuration in the CLICK Programming Software ............................................... 3-40
Analog PLC units .................................................................................................... 3-40
Analog I/O Modules ............................................................................................... 3-41
Analog I/O Monitoring ........................................................................................... 3-43
High-Speed Input Configuration ............................................................................ 3-44
Wiring Examples High Speed Inputs ....................................................................... 3-46
3-Wire Sensors ....................................................................................................... 3-46
Chapter 4 - PLC Communications
Introduction ............................................................................................................... 4-2
PLC Communication Ports Specifications ................................................................. 4-3
LED Status Indicators ................................................................................................. 4-5
LED Status Indicators ................................................................................................ 4-5
DirectLogic Devices That Do Not Work With CLICK PLCs ......................................... 4-5
3 Steps to Using the CLICK PLC Communications ................................................... 4-7
Typical Communication Applications ........................................................................ 4-8
Port 1 (RS-232) - Modbus RTU Slave Mode Only ..................................................... 4-8
Port 1 (Ethernet) - Modbus TCP .............................................................................. 4-9
Port 2 (RS-232) - Modbus RTU or ASCII ................................................................. 4-10
Port 3 (RS-485 - Modbus RTU or ASCII) ............................................................... 4-11
W-1: Com Port 1 & 2 (RS-232) Wiring .................................................................... 4-12
W-2: Com Port 1 (Ethernet) Wiring ........................................................................ 4-17
CLICK PLC Hardware User Manual, 6th Edition, Rev. E - C0-USER-M
Table of Contents
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