PLC Test 1
Define a PLC - Answer-Industrial grade computer capable of being programmed to perform control
functions.
Advantages of a PLC over relay logic - Answer-Eliminates most hardwiring. Easy to use and fast.
Programming Device - Answer-Used to enter the desired program into the memory
CPU - Answer-The Brain; Controls the PLC
I/O System - Answer-Forms the interface to connect field devices to the controller
Power Supply - Answer-Supplies DC power to other modules
Function of an output interface module - Answer-Control external devices
Standard PLC programming language - Answer-Ladder Logic
What does the backplane do? - Answer-Allow modules to be plugged in
Function of an optical isolator - Answer-Separates two circuits using an optical coupler.
What does the discrete output module recognize? - Answer-Binary on and off signals
Define a PLC - Answer-Industrial grade computer capable of being programmed to perform control
functions.
Advantages of a PLC over relay logic - Answer-Eliminates most hardwiring. Easy to use and fast.
Programming Device - Answer-Used to enter the desired program into the memory
CPU - Answer-The Brain; Controls the PLC
I/O System - Answer-Forms the interface to connect field devices to the controller
Power Supply - Answer-Supplies DC power to other modules
Function of an output interface module - Answer-Control external devices
Standard PLC programming language - Answer-Ladder Logic
What does the backplane do? - Answer-Allow modules to be plugged in
Function of an optical isolator - Answer-Separates two circuits using an optical coupler.
What does the discrete output module recognize? - Answer-Binary on and off signals
