Control system, method, and program to improve debugging efficiency of an NC program and sequence program respectively controlling a machine tool and a peripheral target instrument

An analysis method in a control system, the control system including:

• a first controller configured to control a machine tool according to an NC program;
• and
• a second controller configured to control a target instrument according to a sequence program,
• the first controller and the second controller being time-synchronized with each other,
• the analysis method comprising:
• acquiring locus information in which a position of the machine tool corresponding to an instruction value generated by execution of the NC program is associated with first time information indicating a control time using the instruction value by the first controller;
• and
• acquiring variable history information in which a value of a variable updated by execution of the sequence program is associated with second time information indicating an update time,
• the first time information and the second time information being generated by the first controller and the second controller, respectively,
• the analysis method further comprising:
• selecting a target period from execution periods of the NC program and the sequence program;
• displaying a first target portion corresponding to the target period in a locus indicated by the locus information on a display device;
• and
• displaying a second target portion corresponding to the target period in transition of the value of the variable indicated by the variable history information on the display device.

A non-transitory computer-readable storage medium storing a program causing a computer to execute an analysis method in a control system, wherein

• the control system includes:
• a first controller configured to control a machine tool according to an NC program;
• and
• a second controller configured to control a target instrument according to a sequence program,
• the first controller and the second controller are time-synchronized with each other,
• the analysis method includes:
• acquiring locus information in which a position of the machine tool corresponding to an instruction value generated by execution of the NC program is associated with first time information indicating a control time using the instruction value by the first controller;
• and
• acquiring variable history information in which a value of a variable updated by execution of the sequence program is associated with second time information indicating an update time,
• the first time information and the second time information being generated by the first controller and the second controller, respectively,
• the analysis method further includes:
• selecting a target period from execution periods of the NC program and the sequence program;
• displaying a first target portion corresponding to the target period in a locus indicated by the locus information on a display device;
• and
• displaying a second target portion corresponding to the target period in transition of the value of the variable indicated by the variable history information on the display device.