Question 4: (10 marks) a) You company enlist you to design a specialized motion control module. What would be the parameters you would typically want from the PLC, in order to execute any required motion successfully? Describe your ideas around this. Keep it simple and think about only one axis of movement. (5 marks) b) Explain why a specialized module is required to interface to an RTD temperature sensor, Specifically refer to the role that excitation voltage plays, the amount of wires used to measure the temperature accurately and the self-heating effect.