CONTROL SYSTEM WITH MULTIPLE TERMINAL BOARDS AND METHOD FOR CONNECTING MULTIPLE TERMINAL BOARDS

摘要

A control system may include a plurality of terminal boards. Each of the plurality of terminal boards may at least include a power pin. The definition of the power pin on at least one of the plurality of terminal boards may be different from the definition of the power pin on another one of the plurality of terminal boards. Thus, if the at least one of the plurality of terminal boards is connected to a wrong input/output module, the input/output module will not get a process power supplied via the power pin on the terminal board. Therefore, a wrong input/output signal will not be transferred, and the input/output module will not be damaged even if a higher process voltage is provided by a wrong terminal board.