Programmable Logic Controller Questions
Answer TRUE or FALSE For Below Questions
1. Most PLCs have a fixed number of timers
FALSE
2. Normally closed contacts “invert” the state of the signal they reference
TRUE
3. PLCs are advantageous for use in fixed-circuit or fixed program operations
FALSE
4. PLC scan time is dependent on the complexity of the PLC program
TRUE
5. Most PLC timers have microsecond resolution
FALSE