PROGRAMMABLE LOGIC CONTROLLERS-PACKAGE
5th Edition
ISBN: 9781260017502
Author: Petruzella
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Question
Chapter 12, Problem 6RQ
Program Plan Intro
Sequencer instruction:
- Programmable Logic Controller (PLC) sequencer instructions are used for controlling machines which provides a stepped sequence of repeatable operations.
- It simplifies the ladder program by allowing the user to use a single or pair of instructions for performing complex operations.
- Various sequencer instructions can be program based on the PLC manufacturer.
- PLC sequencer performs ON or OFF output patterns using sequencer instructions.
- The sequencer output instruction is used for controlling the output devices.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
What types of operands may be used with the FADD instruction?
Which register is utilized as a counter by the LOOP instruction when it is executed in real-address mode?
Which index register is used by the STOSD instruction?
Chapter 12 Solutions
PROGRAMMABLE LOGIC CONTROLLERS-PACKAGE
Knowledge Booster
Similar questions
- In real-address mode, which register is used as the counter by the LOOPD instruction?arrow_forwardWhen compared to the OFFSET operator, what advantages does the LEA instruction have?arrow_forwardWhat would the Control signals be for a shift R-format instruction(LSR and LSL)? Would you need to make changes to the datapath? The ALU Control?arrow_forward
- This R format instruction adds the four bytes that the source register holds and puts the sum into the lower two bytes of the destination register.arrow_forwardThe three values the sequence counter (SC) cycle through the FETCH portion of the RSC instruction cycle are: __________________.arrow_forwardWhich instruction pushes the 32-bit EFLAGS register on the stack?arrow_forward
- Give the advantage of each flag in the 8051 microcontroller status word register.arrow_forwardIn real-address mode, which register is used as the counter by the LOOP instruction?arrow_forwardThe register addressing mode was the only one that could be used with a datapath. Which part of the data pipeline is superfluous here?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Systems ArchitectureComputer ScienceISBN:9781305080195Author:Stephen D. BurdPublisher:Cengage Learning
Systems Architecture
Computer Science
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Cengage Learning