FAIL SAFE SYSTEM FOR INFORMATION TRANSMISSION SYSTEMS

摘要

There is disclosed an information transmitting apparatus comprising: a transmitting apparatus (1) for transmitting control information; a receiving apparatus (21 - 28) for receiving the control information; a transmission line (2) provided between the transmitting apparatus and the receiving apparatus; and a load which operates in response to the output of the receiving apparatus; wherein the transmitting apparatus transmits the control information through the transmission line to the receiving apparatus within a given time period and the receiving apparatus makes the load operative on the basis of the control information received. …The receiving apparatus has a circuit (50) for detecting the reception interval of the transmission information from the transmission line and for generating an abnormality signal when that interval becomes a predetermined time or more.