Control system with multiple terminal boards and method for connecting multiple terminal boards

A method for connecting a plurality of terminal boards on a control system comprising:

• arranging a power pin on each of the plurality of terminal boards so that the definition of the power pin on at least one of the plurality of terminal boards is different from the definition of the power pin on another one of the plurality of terminal boards;
• providing a plurality of input/output modules corresponding to the plurality of terminal boards;
• arranging a power pin on each of the plurality of input/output modules so that the definition of the power pin on each of the plurality of input/output modules corresponds to the definition of the power pin on the corresponding one of the plurality of terminal boards;
• and
• connecting each of the plurality of input/output modules to the corresponding one of the plurality of terminal boards via a cable.