POSITION COMMAND DEVICE

PURPOSE:To start a position command substantially at the input point of time of a start signal and to eliminate operation delay by outputting the position command at the input point of time of a 1st clock pulse after the start signal is inputted. CONSTITUTION:A register 14 counts internal clock pulses PP of a timer 13 and the timer 13 is reset every time a clock pulse CLK is outputted, but when the start signal from an input port 11 becomes active, the counted value is latched at the point of time. A microcomputer 12 is interrupted when the start signal from the input port 11 becomes active and the register 14 inputs the latching result to calculate the time up to the input of a next clock pulse CLK. The ratio of the calculated time to the period T of the clock pulse CLK is calculated and the quantity obtained by multiplying the unit quantity of the position command by the calculated ratio is outputted in synchronism with the clock pulse CLK right after the start signal input. Consequently, control along an ideal control line is performed.