Abstract: The disclosure relates to a method for communication in a machine tool system. The machine tool system includes a programmable logic controller (PLC), a numerical control (NC), and a control node, wherein the control node and the NC are configured to exchange data signals with each other. The method include transmitting a data signal, including an action request, which includes an acknowledgment indication, from the control node to the NC, triggering, in the NC, an action to be performed in the machine tool system based on the received action request, and sending, from the NC to the control node, an acknowledgement ACK data signal if required by the acknowledgement indication.

Abstract: A method for establishing communication between a control node and a machine in a machine tool system includes notifying the control node of an identifier of the machine. The machine includes a numerical control (NC). The method further includes the steps of retrieving a machine configuration file including machine attributes at the control node based on the identifier; determining a data structure of a data signal transferring information in the machine tool system by interpreting the machine configuration file; and acknowledging from the control node to the machine that communication has been established.

Abstract: A control system includes a programmable logic control section controlling operation of a machine and a numerical control section controlling relative motion between a tool of the machine and a work piece. A method, performed in the control system, includes: evaluating an input signal, received by the programmable logic control section, in relation to a first condition, wherein the input signal includes information about a state of the tool or of a subtractive process performed via interaction of the tool and the work piece; and in response to the input signal satisfying the first condition, providing the information to the numerical control section. The state may for example be tool breakage, tool wear or wrong cutting data. An operator of the machine may for example specify via programs in the numerical control section how the machine is to respond to such states.

Abstract: A control system includes a programmable logic control section controlling operation of a machine and a numerical control section controlling relative motion between a tool of the machine and a work piece. A method, performed in the control system, includes: evaluating an input signal, received by the programmable logic control section, in relation to a first condition, wherein the input signal includes information about a state of the tool or of a subtractive process performed via interaction of the tool and the work piece; and in response to the input signal satisfying the first condition, providing the information to the numerical control section. The state may for example be tool breakage, tool wear or wrong cutting data. An operator of the machine may for example specify via programs in the numerical control section how the machine is to respond to such states.