Purpose of Output Fuses and Blown-fuse Indicators
The purpose of the blown fuse indicator is to simplify troubleshooting for a technician. If the indicator is true or on, this means the fuse is blown.
AC Discrete Output Modules
For AC discrete output modules in the PLC, you must use circuitry that can handle 120 volts or 230 VAC (the standard for AC voltage).
DC Discrete Input Modules
Like, AC discrete input modules, DC discrete input modules perform four main tasks in the PLC unit.
I/O Module Field Wiring Arm
The purpose of the PLC I/O module field wiring arm is to make troubleshooting and repairs easier for the control system technicians.
Purpose of Terminal Assembly
On most PLC units a terminal assembly is attached to the IO Cards. It simplifies connecting the field wiring to the input/output cards.
PLC Status LED
In PLC, the status LED lights give you relevant information, such as whether the PLC is in RUN mode, and which input or outputs are ON or OFF.
Discrete AC Input Modules
In Programmable Logic Controllers (PLC), Discrete AC input modules are made up of two sections: the power section and the logic section.
Two Floor Elevator PLC Program
PLC program to execute an elevator system in a two-floor apartment using Allen Bradley PLC ladder logic programming.
Three way Traffic Light Control using PLC
Design ladder logic for Three way traffic light control system using Programmable Logic Controller PLC.
Gate Logic using PLC Program
Simulate the basic gate logic includes AND, OR, NOT combinational circuit using the Allen Bradley Programmable Logic Controller (PLC).
