1.1 The diagram in Figure 1 shows the supervisory control system. As an industrial engineering graduate how would you describe the importance of having such a system in an organization? Hint: In you explanation also provide the benefit and advantages of the system. (6) EXPERT CONTROL STRATEGY Regulatory Control System Measurements DATA BASE Control Actions PROCESS ENGINEEF OPERATOR Figure 1: Supervisory control system diagram 1.2 Repeatability is a measure of the robot's ability to position its end-of-wrist at a previously taught point in the work volume. Each time the robot attempts to return to the programmed point it will return to a slightly different position. Repeatability variations have as their principal source the mechanical errors previously mentioned. One of the joints of an industrial robot has a type R-joint with a range of 75". The bit storage capacity of the robot controller is 10 bits for this joint. The mechanical errors form a normally distributed random variable about a given taught point. The mean of the distribution is zero and the standard deviation is 0.05. Based on the information above, as an industrial engineering you are in good position to determine: 1.2.1 the control resolution CR2, accuracy, and repeatability for this robot joint. (6) 1.2.2 the linear distance corresponding to CR, accuracy, and repeatability at the end of the link if the output link has a length of almost 75mm, (6) 1.3 Utilize your automation knowledge to direct the management confusion on Program Logic Control (PLC). Clearly inform the management about the uses of Program Logic Controls (PLC) in the 4th industrial revolution? (2) [20]