JPS5736301A - Setter for control parameter - Google Patents

Abstract

PURPOSE:To feed the appropriate quantity of operation to a control process in a digital controller by changing value stepwise toward a new set value at the setting and changing of parameters. CONSTITUTION:When a key 1 is depressed at value V0 in a counte CNT, counting increases at a constant speed and, simultaneously, a start signal is fed to a timer TM through an OR gate OR; after counting up subscribed time tb, the timer TM sends a time interval signal t11 to a value setting part SET. When receiving the signal t11, the setting part SET reads the value V1 of the counter CNT and transmits the value as a control set value. During the period the key 1 is depressed, the timer TM starts repeatedly, counts up the time tb and sends a signal t2-tn to the setting part SET in every counting of tb. Thus, the setting part SET reads the value V2-Vn of the counter CNT; finally, value Vn is set up correspondently to the signal tn and transmitted. Thus, a subject to be controlled can be controlled on the basis of an expected control value.