Asked by Waleed Abdullah on May 11, 2024
Verified
When using an XIC instruction, the reference address could be:
A) a bit from an input device.
B) a bit from an output device.
C) a bit from an internal relay.
D) Any of these choices could be correct
XIC Instruction
A logical instruction used in PLC programming that stands for "Examine if Closed," checking if a condition is true (input or contact is on).
Reference Address
A specific location in memory used to store data or an instruction.
Internal Relay
An electromechanical device used within a circuit or system to control a larger current with a smaller one, acting as a switch.
- Detect and describe the utility of various ladder logic symbols and instructions.
Verified Answer
MW
Matthew WhitingMay 17, 2024
Final Answer :
D
Explanation :
An XIC (Examine if Closed) instruction in PLC programming can reference a bit from various sources, including input devices, output devices, and internal relays. This makes it versatile for checking the status of different types of signals within a control system.
Learning Objectives
- Detect and describe the utility of various ladder logic symbols and instructions.