An industrial plant and method for graphically representing synchronous relationships, wherein the industrial plant includes a first control device in which a first user program executes, a second control device in which a second user program executes, and a plurality of drives which are controlled and/or regulated by the user programs, where objects are assigned to the drives in the user programs, synchronous relationships exist between the objects, the user programs have a plurality of different flow structures which have an influence on the synchronous relationships between the objects such that a synchronous relationship is either an active synchronous relationship or an inactive synchronous relationships, and where an apparatus for graphical representation of synchronous relationships is provided between the objects to simplify diagnosis of synchronous operations.

Provided are: a numerical control device with which it is possible to easily perform a cutting process; a control method; and a processing program. The numerical control device comprises: a processing program analysis unit that analyzes commands that a machine tool can perform simultaneously, from one line of the processing program for commanding the machine tool before and after the cutting process; and a simultaneous operation control unit that uses the analyzed commands that can be performed simultaneously, combines the operations that the machine tool can perform simultaneously, and controls the commanded simultaneous operations.

A numerical controller that is capable of independently controlling multiple control groups can cause a machine to simultaneously execute multiple operations. The numerical controller includes a program analysis unit that analyzes a program and distinguishes the commands for the multiple control groups from each other, and a program execution unit that executes the commands for the multiple control groups independently on a per-control-group basis.

An information processing device includes an actuator emulator that simulates a behavior of a drive apparatus that is for driving a first control target, an actuator emulator that simulates a behavior of a drive apparatus that is for driving a second control target that cooperates with the first control target, a timer that generates a virtual time, and an execution part that executes a PLC program for controlling the actuator emulator and a robot program for controlling the actuator emulator. Execution modes of the control programs used by the execution part include a synchronous execution mode in which the PLC program and the robot program are synchronously executed in accordance with a virtual time and an asynchronous execution mode in which the PLC program and the robot program are asynchronously executed.

An information processing device includes an actuator emulator that simulates a behavior of a drive apparatus that is for driving a first control target, an actuator emulator that simulates a behavior of a drive apparatus that is for driving a second control target that cooperates with the first control target, a timer that generates a virtual time, and an execution part that executes a PLC program for controlling the actuator emulator and a robot program for controlling the actuator emulator. Execution modes of the control programs used by the execution part include a synchronous execution mode in which the PLC program and the robot program are synchronously executed in accordance with a virtual time and an asynchronous execution mode in which the PLC program and the robot program are asynchronously executed.

A numerical controller that is capable of independently controlling multiple control groups can cause a machine to simultaneously execute multiple operations. The numerical controller includes a program analysis unit that analyzes a program and distinguishes the commands for the multiple control groups from each other, and a program execution unit that executes the commands for the multiple control groups independently on a per-control-group basis.

Provided are: a numerical control device with which it is possible to easily perform a cutting process; a control method; and a processing program. The numerical control device comprises: a processing program analysis unit that analyzes commands that a machine tool can perform simultaneously, from one line of the processing program for commanding the machine tool before and after the cutting process; and a simultaneous operation control unit that uses the analyzed commands that can be performed simultaneously, combines the operations that the machine tool can perform simultaneously, and controls the commanded simultaneous operations.

An industrial plant and method for graphically representing synchronous relationships, wherein the industrial plant includes a first control device in which a first user program executes, a second control device in which a second user program executes, and a plurality of drives which are controlled and/or regulated by the user programs, where objects are assigned to the drives in the user programs, synchronous relationships exist between the objects, the user programs have a plurality of different flow structures which have an influence on the synchronous relationships between the objects such that a synchronous relationship is either an active synchronous relationship or an inactive synchronous relationships, and where an apparatus for graphical representation of synchronous relationships is provided between the objects to simplify diagnosis of synchronous operations.