Control system, control method, and control program

A control method for a control device that controls a control target with a system program and a user program, the control device comprising:

• a first communication unit connected to a first network to which a server is connected;
• and
• a second communication unit connected to a second network, distinct from the first network, to which a device used for manufacturing steps is connected, the control method comprising:
• managing a value indicative of time;
• when the first communication unit transmits and/or receives communication data which satisfies a first condition, collecting the communication data transmitted and/or received by the first communication unit as first communication data and storing in a storage the first communication data associated with a value indicating a time point at which the first communication data is transmitted and/or received;
• and
• when the second communication unit transmits and/or receives communication data which satisfies a second condition, collecting the communication data transmitted and/or received by the second communication unit as second communication data and storing in the storage the second communication data associated with a value indicating a time point at which the second communication data is transmitted and/or received, wherein
• each of the first communication data and the second communication data comprises a transmission source address, a reception source address, a type of protocol, and a port number, and
• the first condition and the second condition are defined in accordance with instructions included in the user program and related to the address, the type of protocol and, the port number.

A non-transitory computer-readable storage medium storing a control program for a control device that controls a control target, the control device comprising:

• a first communication unit connected to a first network to which a server is connected;
• and
• a second communication unit connected to a second network, distinct from the first network, to which a device used for manufacturing steps is connected, the control program that causing the control device to perform:
• updating a value indicative of time;
• when the first communication unit transmits and/or receives communication data which satisfies a first condition, collecting the communication data transmitted and/or received by the first communication unit as first communication data and storing in a storage the first communication data associated with a value indicating a time point at which the first communication data is transmitted and/or received;
• and
• when the second communication unit transmits and/or receives communication data which satisfies a second condition, collecting the communication data transmitted and/or received by the second communication unit as second communication data and storing in the storage the second communication data associated with a value indicating a time point at which the second communication data is transmitted and/or received, wherein
• each of the first communication data and the second communication data comprises a transmission source address, a reception source address, a type of protocol, and a port number, and
• the first condition and the second condition are defined in accordance with instructions included in the control program and related to the address, the type of protocol, and the port number.