Periphery module and periphery system for an automation system

摘要

A self-constructing internal voltage bus (36) receives a supply voltage from an upstream peripheral module (33). A relay relays the supply voltage to a downstream peripheral module. A supply terminal (34) supplies a supply voltage from a power supply unit. A changeover switch (35) interrupts the relaying of supply voltage to the downstream peripheral module. An independent claim is included for a method for using peripheral modules.