Asked by Sonia Trelles on Jul 13, 2024
Verified
The sequencer shown operates whenever 
A) input A is false.
B) input A is true.
C) the PLC is in the run mode.
D) the PLC is in the program mode.
Sequencer
A control function or device that executes a series of events or operations in a predetermined order.
- Understand the role of external inputs and transitions in the operation of sequencer instructions.
Verified Answer
ZK
Zybrea KnightJul 17, 2024
Final Answer :
B
Explanation :
The sequencer operates whenever input A is true.
Learning Objectives
- Understand the role of external inputs and transitions in the operation of sequencer instructions.