Architecture of PLC

                                                     Fig. Shows the architecture of PLC

 The basic functions of architecture:

(I) CONTROLLER:-

                  It is the most important part of our PLC that will control the whole process from its begining to the end of the process.It includes many different types of processes like Input Scan, Output Scan, Program Scan.

(II) INPUTS:-  
                 In Micro logix 1000, We have 6 Inputs and all the inputs are isolated from each other. So that we can used them indepandently according to our requirements.

(III) OUTPUTS:- 

             In Micro logix 1000, We have 4 outputs and all the outputs are isolated from each other. So that we can used them indepandently according to our requirements.

(IV) MEMORY:- 

          It is a storage place for the programs that we have downloaded. At one time we can store only one program in this memory.

(V) COMMUNICATION PORT AND CABLE:- 

           Through communication port we will connect our PLC to CPU by using a communication cable & giving some command through the software RS Linx Classic.

(VI) SMPS:-

            It will Convert our 220V AC supply into 24V DC supply which is required for the proper working of our PLC.