Numerical controller for notifying execution of auxiliary function in advance

A numerical controller for controlling execution of an auxiliary function of a machine according to a program, the numerical controller comprising:

• a command analysis unit configured to perform a read ahead of a block of the program and analyze an instruction of the block;
• an auxiliary function operation information storage unit configured to store auxiliary function operation information, in which a code for instructing an auxiliary function, at least one operation of the auxiliary function, and a lead time of the operation are associated with one another;
• an execution initiation timing notification unit configured to, when the code for instructing the auxiliary function is included in the block read ahead by the command analysis unit, calculate the amount of time before execution of the code for instructing the auxiliary function on the basis of the block read ahead by the command analysis unit, and output the calculated time and the code for instructing the auxiliary function;
• and
• an execution timing determination unit configured to
• acquire auxiliary function operation information corresponding to the code for instructing the auxiliary function from the auxiliary function operation information storage unit, on the basis of the code for instructing the auxiliary function outputted from the execution initiation timing notification unit,
• calculate a leading operation initiation time of an operation included in the acquired auxiliary function operation information, on the basis of a lead time of the operation included in the auxiliary function operation information, and the amount of time before execution of the code for instructing the auxiliary function outputted from the execution initiation timing notification unit, and
• execute the operation of the auxiliary function according to the leading operation initiation time, wherein
• the numerical controller outputs, to the machine, a command for executing the operation of the auxiliary function determined by the execution timing determination unit.