Numerical control system with buffering of position setpoint values

A system program for a numerical control system, the system program comprising machine code stored on a computer-readable non-transitory storage medium, wherein the machine code when loaded into a memory of the numerical control system and executed by the numerical control system, causes the numerical control system to

• a) determine, using presets, a group of position setpoint values for position-controlled axes of a production machine controlled by the numerical control system,
• b) check whether, during control of the position-controlled axes with the determined group of position setpoint values, a risk of a collision of an element moved by the control of the position-controlled axes with another element exists,
• c) when no risk of a collision exists, store the group of position setpoint values in a buffer store and read out from the buffer store at least one other group of position setpoint values already stored in the buffer store, and control the position-controlled axes according to the at least one other group of position setpoint values read out from the buffer store, and return to step a) so that the element moved by the position-controlled axes is moved along a path defined by a sequence of the groups of position setpoint values, and
• d) when a risk of a collision exists, bring the position-controlled axes to a standstill,
• wherein the numerical control system considers previously unknown real time events only when determining groups of position setpoint values to be stored in the buffer store, while not altering the groups of position setpoint values already stored in the buffer store.

A production machine, comprising

• a plurality of position-controlled axes constructed to move an element of the production machine, and
• a numerical control system controlled by a system program comprising machine code stored on a computer-readable non-transitory storage medium, wherein the machine code when loaded into a memory of the numerical control system and executed by the numerical control system, causes the numerical control system to
• a) determine, using presets, a group of position setpoint values for the position-controlled axes of the production machine,
• b) check whether, during control of the position-controlled axes with the determined group of position setpoint values, a risk of a collision of an element moved by the control of the position-controlled axes with another element exists,
• c) when no risk of a collision exists, store the group of position setpoint values in a buffer store and read out from the buffer store at least one other group of position setpoint values already stored in the buffer store, and control the position-controlled axes according to the at least one other group of position setpoint values read out from the buffer store, and return to step a) so that the element moved by the position-controlled axes is moved along a path defined by a sequence of the groups of position setpoint values, and
• d) when a risk of a collision exists, bring the position-controlled axes to a standstill,
• wherein the numerical control system considers previously unknown real time events only when determining groups of position setpoint values to be stored in the buffer store, while not altering the groups of position setpoint values already stored in the buffer store.