Write a programme

Using Mitsubishi FX series Ladder Logic running on a PLC, construct a program with 2 sensors, A and B, that will control a series of 4 lamps with the following specification and sequence: Lamp 1 Lamp 2 Lamp 3 Lamp 2 Lamp 3 Repeat The lamps should continually cycle through this sequence individually while the PLC is running. Only one lamp will be on at a time. The transition between lamps should be either 3 or 5 seconds with the time controlled by a switch. Lamp 4 should be active for 10 seconds if Sensor A is activated or 6 seconds if Sensor B is activated. This should also turn off the other lamps during this period and the sequence should then reset to the beginning. If sensors A and B are activated more than 5 times combined then Lamp 4 should act as above but then also flash permanently at a frequency of 0.5 Hertz when the sequence has reset and Lamps 1 to 3 are going through their sequence but with the transition time between lamps doubled. If sensors A and B are activated more than 10 times combined then Lamps 1 to 3 should shut off permanently and Lamp 4 should stay on permanently until a Master Reset Switch is activated. You should choose appropriate inputs and outputs on the PLC for your lamps and sensors. Construct the program in stages. Use your engineering knowledge and best judgement to interpret any ambiguities in the specification. You are required to write a brief report explaining how your program works. It is advisable to break the program up into stages e.g. Lamp 1-3 sequence, Reset switch etc. Explain how each stage advances your design. Explain how your PLC system would interface to the outside world e.g. inputs, outputs, wiring considerations, HMIs and power supplies. KSB - From your experience using PLCs in the labs, briefly reflect upon the safety issues that arise from their use.