JPS6471237A - Information processing system - Google Patents

Abstract

PURPOSE:To control plural peripheral equipments in parallel without mutual effect by constituting a bus by an incoming signal line and an outgoing line and applying individual field for each peripheral equipment for the transmission/ reception of a signal between the peripheral equipments. CONSTITUTION:When a control signal 1 and a control data are sent to an incoming signal line 5 in the field of a peripheral equipment from a central controller 1, the peripheral equipment 2 uses a bus adaptor section 21 so as to confirm it that the control signal of its own field is logical '1' to fetch the control data and a processing section 22 applies the processing. When the processing is finished, the processing section 22 returns the control signal 1 and the reply signal to the field of the outgoing signal line 6 of the peripheral equipment 2. Moreover, when the control signal 1 and the control data are sent to the field of the peripheral equipment 3 of the incoming signal line 5 from the central controller 1 during the processing of the peripheral equipment 2, the peripheral equipment fetches the control data and the processing section 32 applies processing to return the reply signal.