Take a look at this overview of the entire CS1 Series.
There are 2 products of CS1 Overview.
            
            
               CS1G, CS1H Overview
            
            
                CS1G, CS1H
            
        
    From Machine Control to Information Management Multiple-application Controllers with a Wide Range of Functions
            
            
               CS1D Overview
            
            
                CS1D
            
        
    Redundant CPU Units, Power Supply Units, Communications Units, and Expansion I/O Cables