Programmable controller
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorShinsuke Yokokawa
Life of this patent
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Abstract
An output cycle of a pulse string generated from a pulse generating section (2) is divided by a pulse dividing section (3) and a signal having a cycle which is plural times as great as the cycle of an output pulse is output from the pulse dividing section (3). This signal is input as an interruption request signal to a CPU (1). Consequently, the CPU (1) can execute an interruption processing in a cycle which is plural times as great as the cycle of the output pulse. By the interruption processing, the number of pulses to be output is controlled.
Claims3
A programmable controller for controlling a controlled apparatus by pulse output, comprising:
- a pulse generating section for outputting a pulse string having a set cycle;
- a pulse dividing section for dividing the pulse string output from said pulse generating section at a predetermined dividing ratio and for outputting an interruption request signal having a cycle which is n times as great as the cycle of the pulse string
- where n is a positive integer;
- and
- a central processing unit for executing an interruption processing in response to the interruption request signal output from said pulse dividing section so as to directly control the output of said pulse generating section,
- wherein the pulse dividing section determines the interruption request signal based on the dividing of the pulse string output.
Dependencies are inferred from the claim text.