Answer each of the following with reference to the timer-driven sequencer program shown in Figure 12-42:
a. How many bit outputs are controlled by this sequencer?
b. What is the address of the word that controls the outputs?
c. What is the address of the sequencer file that sets the states for the outputs?
d. What is the address of the sequencer file that contains the preset timer values?
e. For what length of time is the red light programmed to be on?
f. For what length of time is the green light programmed to be on?
g. For what length of time is the yellow light programmed to be on?
h. What is the time required for one complete cycle of the sequencer?
i. Assume that the decimal value stored in N7:13 is changed to 35. Outline the changes that this new value will have on the timing of the traffic lights.