Sequence program execution control system
AssigneeFanuc Corporation
InventorsYasushi Onishi, Yoshiharu Saiki
Life of this patent
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Abstract
A memory (1) stores a sequence program (1a) expressed in a step format. Execution control device (2) executes this sequence program (1a), thereby carrying out operation control on the side of a machine (3). Display control device (4) displays the sequence program (1a) on a display screen of a display device (5), and displays various commands inputted by means of a keyboard (6), in the form of menus. An operator specifies a step by way of the keyboard (6), and also commands to interrupt the execution of the sequence program by way of the keyboard (6). Thereupon, execution stop control device (7) stops the execution of the sequence program in the specified step.
Claims9
A sequence program execution control system comprising:
- program storage means for storing a sequence program composed of a plurality of steps;
- execution control means for executing said sequence program step by step in order, thereby carrying out operation control on the side of a machine;
- step specifying means for specifying any one or two or more of the steps constituting the sequence program stored in said program storage means;
- and
- skip command means for commanding said execution control means compulsorily to advance from the step specified by said step specifying means to the next step.
A sequence program execution control method, wherein:
- a programmable controller is actuated by a sequence program written in the form of an SFC (sequential function chart), simultaneously causing the sequence program to be displayed on a display screen of a manual input device;
- a currently executed step is discriminated from a plurality of other steps constituting the sequence program displayed on said display screen;
- one or more of a plurality of transitions of the sequence program displayed on the screen are specified by means of a first key assigned to the manual input device;
- and
- the specified transition or transitions are skipped, and the sequence is shifted to the next step not specified by the first key or returned to the beginning of the program, by means of a second key assigned to the manual input device.
Dependencies are inferred from the claim text.