TERMINAL CONTROL SYSTEM

PURPOSE:To prevent missing or duplication of data by providing a means detecting the reception disabled state of a terminal equipment and storing the state to a terminal controller and checking the status in case of rising of the terminal equipment when the terminal equipment is in the reception disabled state during data transmission from a center to the terminal control equipment. CONSTITUTION:A message sent from the center 1 unidirectionally to the terminal controller 2 is outputted to a terminal equipment 3 via the terminal controller 2. If a message cannot be received for the terminal equipment 3 due to any cause, the terminal controller 2 stores the message and stores its state. Then after the terminal equipment 3 rises, the unidirectional transmission message from the center 1 and stored in the terminal controller 2 is outputted to the terminal equipment 3, a notice message to the operator of the terminal equipment 3 is outputted to surely allow the operator to check miss/duplication of the unidirectionally sent message caused at the occurrence of the terminal equipment or the like.