Title:
SEQUENCE DISPLAY UNIT
Document Type and Number:
Japanese Patent JPS55129807
Kind Code:
A
Abstract:
PURPOSE:To enable to troubleshoot the failure in a short time, by erasing the conditional input satisfying the test conditions from the screen and displaying the conditional input not satisfying the test conditions on the screen. CONSTITUTION:In the sequence display unit performing external display through converting the program in a given symbol pattern, a series of sequence program which tests a plurality of conditional inputs relating to ON and OFF of the specific output element is read out from the memory section 11 of the sequence control circuit 10 and converted into a given symbol pattern to perform display in the ladder diagram. In this case, the test result of this conditional input is discriminated with the test result discrimination circuit 22, the input symbol pattern discriminated as the satisfaction of conditions is erased with the control circuit 30 for the display of ladder diagram. Thus, the condition inputs not satisying the conditions can easily be discriminated to troubleshoot the failure in a short time.
Inventors:
YOMOGIDA TOSHIHIKO
MATSUURA KAZUO
FUJISAKI SEIJI
MATSUURA KAZUO
FUJISAKI SEIJI
Application Number:
JP3667579A
Publication Date:
October 08, 1980
Filing Date:
March 27, 1979
Export Citation:
Assignee:
TOYODA MACHINE WORKS LTD
International Classes:
G05B23/02; G05B19/02; G05B19/048; G05B19/05; (IPC1-7): G05B19/02; G05B23/02; G06F15/46