What is the function of a HART modem?
A. To convert analog signals to digital signals
B. To convert digital signals to analog signals
C. To modulate and demodulate HART signals
D. None of the above
Answer:C
What is the function of a HART modem?
A. To convert analog signals to digital signals B. To convert digital signals to analog signals C. To modulate and demodulate HART signals D. None of the above
Explanation: A HART modem is a device that allows communication between a HART-enabled field instrument and a control system. The modem modulates and demodulates the HART signals, allowing for bi-directional communication over the same wiring used for the analog process signal.