Abstract: A control system is configured by two-way communication conducted between a controller and a display terminal for displaying an operating state of the controller, and includes a processing time managing unit configured to measure time taken for processing pieces of data received from another end, and obtain from the other end and manage time taken on the other end for processing the pieces of data sent to the other end, and a congestion control unit configured to adjust a data sending amount to the other end per unit time based on the time taken for processing the pieces of data on the other end which are managed by the processing time managing unit.

Abstract: A number of communications for transmitting update data from a control device to a client is decreased, and discrepancies in the content of the latest update data between the control device and the client are prevented. The control device has: an update data monitoring unit for monitoring the latest update data and monitoring whether there has been an update within a predetermined time thereafter; an update data confirmation unit which, if there has been no update in the predetermined time, transmits to the client a request to confirm an update data reception state; a reception state determination unit which, based on the update data reception state in the client and the latest update data, determines whether the client has received the latest update data; and a retransmission instructing unit which, if the client has not received the latest update data, re-transmits the latest update data to the client.

Abstract: A display data providing apparatus includes an application server configured to generate display data, and a two-way communication WEB server which is configured to provide the display data generated by the application server to a display device, in response to a request from the display device, and which is configured to perform two-way communication with the display device. The application server includes a data update management unit configured to determine whether to update the display data, and a data generation unit configured to generate the display data if the data update management unit determines that the display data is to be updated. If the data update management unit determines that the display data is to be updated, the two-way communication WEB server provides the display data generated by the data generation unit to the display device, regardless of the request from the display device.

Abstract: The numerical controller controls a machine tool and performs rigid tapping on a cutting surface of a workpiece. The numerical controller determines, based on a first allowable synchronization error between a rotation of a spindle and movement of each axis of a workpiece coordinate system and an inclination angle of a cutting surface, a second allowable synchronization error between a spindle and a feed axis and monitors a synchronization error between the spindle and the feed axis based on a second allowable synchronization error that has been determined.

Abstract: A display data providing apparatus includes an application server configured to generate display data, and a two-way communication WEB server which is configured to provide the display data generated by the application server to a display device, in response to a request from the display device, and which is configured to perform two-way communication with the display device. The application server includes a data update management unit configured to determine whether to update the display data, and a data generation unit configured to generate the display data in the case where the data update management unit determines that the display data is to be updated. In the case where the data update management unit determines that the display data is to be updated, the two-way communication WEB server provides the display data generated by the data generation unit to the display device, regardless of the request from the display device.

Abstract: A numerical controller includes: a program analyzing unit to obtain an end point position of a tool; a first angle calculating unit to calculate an inclination angle of a synthetic feeding direction that maximizes a synthetic torque, based on an upper limit movement torque of the tool in each of the two axis directions; a second angle calculating unit to calculate an inclination angle of a cutting feed direction of the tool based on a start point position and the end point position of the tool; a rotation angle calculating unit to calculate a difference between the inclination angle of the synthetic feeding direction and the inclination angle of the cutting feed direction as a rotation angle of a table; and a servo motor control unit to control rotation of the table based on the rotation angle.

Abstract: A numerical controller includes: a program analyzing unit to obtain a first movement end point position of the tool; a direction calculating unit to calculate a synthetic movement direction that maximizes a synthetic velocity, based on an upper limit movement velocity of the tool in each of the two axis directions; an end point position calculating unit to calculate an intersection position of a circle and the synthetic movement direction as a second movement end point position, wherein the circle has as a radius a distance from a rotation center position of the table to the first movement end point position; a rotation angle calculating unit to calculate a rotation angle of the table based on the first movement end point position and the second movement end point position; and a rotation control unit to control rotation of the table based on the rotation angle.

Abstract: The numerical controller controls a machine tool and performs rigid tapping on a cutting surface of a workpiece. The numerical controller determines, based on a first allowable synchronization error between a rotation of a spindle and movement of each axis of a workpiece coordinate system and an inclination angle of a cutting surface, a second allowable synchronization error between a spindle and a feed axis and monitors a synchronization error between the spindle and the feed axis based on a second allowable synchronization error that has been determined.

Abstract: A numerical controller includes: a program analyzing unit to obtain a first movement end point position of the tool; a direction calculating unit to calculate a synthetic movement direction that maximizes a synthetic velocity, based on an upper limit movement velocity of the tool in each of the two axis directions; an end point position calculating unit to calculate an intersection position of a circle and the synthetic movement direction as a second movement end point position, wherein the circle has as a radius a distance from a rotation center position of the table to the first movement end point position; a rotation angle calculating unit to calculate a rotation angle of the table based on the first movement end point position and the second movement end point position; and a rotation control unit to control rotation of the table based on the rotation angle.

Abstract: A numerical controller includes: a program analyzing unit to obtain an end point position of a tool; a first angle calculating unit to calculate an inclination angle of a synthetic feeding direction that maximizes a synthetic torque, based on an upper limit movement torque of the tool in each of the two axis directions; a second angle calculating unit to calculate an inclination angle of a cutting feed direction of the tool based on a start point position and the end point position of the tool; a rotation angle calculating unit to calculate a difference between the inclination angle of the synthetic feeding direction and the inclination angle of the cutting feed direction as a rotation angle of a table; and a servo motor control unit to control rotation of the table based on the rotation angle.

Abstract: A reference signal generator generating a reference signal for high-resolution measurement/control in real time includes a means for calculating the rotational trend, e.g. increase/decrease in the r.p.m.

Abstract: A reference signal generator generating a reference signal for high-resolution measurement/control in real time includes a means for calculating the rotational trend, e.g. increase/decrease in the r.p.m.