The central processing unit - stepper motor , Electrical Engineering

The Central Processing Unit

The  central processing  unit  is the brain of whole PLC.  The CPU  consist of a microprocessor memory  chip  and other  integrated circuits to control  logic monitoring and communications. The CPU has different operating modes. First  is programming  mode in which is accepts the downloaded logic from an PC and another  is the run mode in which the CPU  can execute the program  and operate  the process . since  a PLC is a delicate controller it  will only  process  this one  program  over and  again. One cycle  through the program is called a seen  time which in voles reading the inputs from the other modules executing the  logic based on these inputs and then updates  the outputs accordingly. The  memory in the CPU  stores the program  while also  holding the status of the  I/O  and providing  a means to store  values.

Posted Date: 4/3/2013 3:43:04 AM | Location : United States







Related Discussions:- The central processing unit - stepper motor , Assignment Help, Ask Question on The central processing unit - stepper motor , Get Answer, Expert's Help, The central processing unit - stepper motor Discussions

Write discussion on The central processing unit - stepper motor
Your posts are moderated
Related Questions
Question 1: a) Describe how pipelining can improves the efficiency of the fetch-execute cycle. b) Explain the term superscalar architecture. c) Explain the term prin

how can i do a question concerning a transfer function

Q. The current sources in Figure are given to be I A = 30 A and I B = 50 A. For the values of R 1 = 20 ,R2 = 40 , and R3 = 80 , find: (a) The voltage V. (b) The current

a digital computer controlled rolling mill regulator system..

Q. What are the various tones used in stronger telephony? When called party line is obtained, exchange control equipment transmits out the ringing current to telephone set of t

NPN: Figure: The symbol of an NPN Bipolar Junction Transistor. NPN is one of the two sorts of bipolar transistors, where the letters "N" (negative) and "P" (positi


Q. (a) Let a unit impulse of voltage v(t) = δ(t) be applied to a series combination of R = 20 and L = 10 mH. Determine the current i(t)in the series circuit. (b) Repeat (a) for

what are the design consideration for electrical wiring harness routing

Using the BC548B BJT transistor amplifier biasing circuit of Lab 2 build an amplifier with the voltage gain of  |A V | = 30 v/v ± = 10%. Measure all necessary parameters of the amp