Designing communication techniques for PLC in automation with considering cleaning machine

In normal situation, industrial firm will work more focus on the use of single PLC system design. For that they have limited number of input and output combination is available for the different work. In certain situation if engineers need more input and output combination than they must compulsory uses another PLC. And the main problem was both PLC is not going to work together. For overcoming this problem, so that I decided to work on that problem. For that certain situation, I have considered one application based on two PLC communication systems. In which use two PLC and try to make them as double inputs and double outputs combination. They will work together. In which I have considering one application for two PLC communications. Particularly in this application have considering four tank in which three tanks will be full previously and keep one tank empty. If I suppose to not keeping any of tank empty than at a onetime only washing or heating tank going work. So, we cannot save the time. so, for saving time purpose we are considering one spare tank the most important tank is washing and heating and another two tank for material loading and unloading process.