Instruction Cycle of 8085 Microprocessor: During normal operation, the microprocessor sequentially fetches, decodes and executes one instruction after another until a halt instruction (HLT) is executed. The fetching, decoding and…
Types of Electrical Drives: Types of Electrical Drives has the following major parts: load, motor, power modulator, control unit and source. There are large number of loads and each load…
PLC Hardware Components: 1. PLC Hardware Components - The input and output interface modules consists of an I/0 rack and individual I/O modules. Input interface modules, accept signals from the…
PLC Operation: To understand the PLC Operation, consider the simple process shown in Fig. 21.63 In this process a mixer motor is to be used to automatically stir the liquid…
PLC Components: A PLC is a solid state device designed to perform logic functions previously accomplished by electro-magnetic relays. Basically, the PLC Components is an assembly of solid state digital…
PLC Programming Languages: The term PLC programming languages refers to the method by which the user communicates information to the PLC. The two most common language strucÂtures are ladder diagram…
Master Control: Master control can be considered the emergency stop switches. An emergency stop switch typically is a big red button on a machine that will shut it off in…
Timer: Timer is an instruction that waits a set amount of time before doing something. The different kinds of timers are available with different manufacturers. Most of the timers are:…
