Multiple Choice
PLC communications protocol is a standardized method for:
A) programming PLCs.
B) connection of input devices.
C) connection of output devices.
D) transmitting data between different devices.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q17: Ground loop circuits cause problems by adding
Q26: In addition to being an important safety
Q28: For most PLC installations, a NEMA _enclosure
Q52: Leakage current can falsely activate a PLC
Q54: I/O leakage problems usually occur with devices
Q65: A fiber optic wired control system is
Q66: With Allen-Bradley controllers _ software is required
Q72: Common potential noise generating devices include non-inductive
Q86: The temporary end instruction is used when
Q93: The programming device monitor normally indicates a