Asked by PERLA MENDIOLA on May 04, 2024
Verified
The MCR instruction:
A) is an output instruction.
B) is used in pairs.
C) is used to disable or enable a zone within a ladder program.
D) all of these.
MCR Instruction
Stands for "Master Control Reset," a programmable logic controller (PLC) instruction used to control the execution of a block of logic.
Ladder Program
A graphical programming language resembling the rungs of a ladder, used for programming PLCs (Programmable Logic Controllers).
Disable Zone
A safety or control feature in machinery that temporarily disables operation in a specific area or zone for protection or maintenance purposes.
- Grasp the concept of program segments and how they are managed through instructions like JMP, JSR, and MCR.
Verified Answer
VA
vishal aggarwalMay 07, 2024
Final Answer :
D
Explanation :
The MCR instruction can be used as an output instruction to control the state of an output module. It is typically used in pairs, with one instruction to enable a specific output and another to disable it. Additionally, the MCR instruction can be used to disable or enable a zone within a ladder program by controlling the flow of logic through that section of the program. Therefore, all of the given choices are correct.
Learning Objectives
- Grasp the concept of program segments and how they are managed through instructions like JMP, JSR, and MCR.