ControlNet is ________.
A) A digital motion control network that interfaces the motion control module in the PLC with the servo motor drive through a fiber optic cable
B) A low-cost communications single cable network with input and output devices with an embedded microprocessor for network communications
C) An open network standard that uses the producer/consumer network model to efficiently exchange time-critical application information in control systems
D) A vendor-specific network for use with Allen-Bradley hardware
Question 2
An action block controls two processes, one that starts when the block becomes active and lasts for a fixed time, and a second that starts later in time in the same action block and ends when the block becomes inactive. What action qualifier would be the BEST solution?
A) L and D B) N and P C) S and R D) P0 and P1