What input module plc automatic control system

input module plc is equivalent to the machine 's brain , we compiled the program is equivalent to the knowledge of people hold grip and rules .
The machine equivalent to the human body, used to  pulse input module plc perform various operations of the PLC .
Electricity, gas, liquid, etc. is equivalent to human muscle and nerve , PLC issued a directive by electricity, gas, liquid , such as the energy to the machine , the machine will perform .
The external sensor feedback to PLC, equivalent to the human eye , nose , etc., will be back to things outside the brain .
That is to take a person or animal analogy , PLC is the brain , PLC combined with the machine equivalent combination of the  Programmable Output Module human brain with the body , but inside the human brain is much more complex process than the PLC , but the people sensitivity and accuracy of the brain is not as PLC. PLC application in China is growing very rapidly. With the rapid development and continuous improvement of basic automation level of China's economy over the next period of time PLC in China will maintain high growth momentum.
When applied to generic PLC equipment can think of it is an embedded controller, but relatively general embedded controller plc IO module  and PLC side has higher reliability and better stability. Some users had encountered in practical work with embedded controllers , is now being gradually replaced by embedded controllers PLC with generic or customized PLC.