The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 1976
Filed:
May. 20, 1974
Nobuharu Yamauchi, Amagasaki, JA;
Masaji Matsumura, Amagasaki, JA;
Katsuhide Morimoto, Amagasaki, JA;
Haruo Koyanagi, Musashimurayama, JA;
Iwao Sato, Komae, JA;
Buhei Yasuhara, Tokyo, JA;
Jiro Sakai, Tokyo, JA;
Nissan Motor Co., Ltd., Tokyo, JA;
Mitsubishi Denki Kabushiki Kaisha, BOTH OF, JA;
Abstract
In a programmable logic controller in which the control sequence for a controlled-objective such as a machine tool is stored in a memory unit, and the controlled-objective is automatically operated in a predetermined sequence according to the control sequence stored in the memory unit; a display system is provided in which a sequence block obtained from the control sequence stored in the memory unit is displayed in the form of a sequence diagram, particularly, a sequence diagram which includes symbols of control elements such as relays. A necessary sequence block is automatically obtained from the control sequence and is displayed. This display system is capable of displaying the states of the control elements, such as the on-off states of relay contacts.