The chart below shows a required set of step sequences with

The chart below shows a required set of step sequences with the same time interval between steps. Provide a ladder diagram and a comprehensive explanation as a solution for this chart by using two eight-bit shift registers (SFTO controls relays 50 to 57, SFTI controls relays 60 to 66). The sequence is to have an initial start signal and thereafter can be free running. A reset control and timer to clock the shift registers must be provided.

Solution

Shift register

The shift register is another type of sequential logic circuit that can be used for the storage or the transfer of the data in the form of binary numbers. This sequential device loads the data present on its inputs and the moves or shifts it to its output once every clock, hence the name shift register.

Some points should be in mind while designing the shift register.