Control device, control system, control method, and non-transitory storage medium storing control program

A control method comprising:

• a process of detecting slave devices, which are communication targets of control data having been set using a setting tool, and the slave devices are connected to a field bus;
• and
• a process of performing communication management conforming to a control cycle of the control data,
• wherein the process of performing communication management comprises:
• determining the control cycle using a pre-stored propagation delay time for each of the slave devices that are the communication targets of the control data, and
• measuring the propagation delay time,
• wherein the propagation delay time is stored in association with a type of the slave devices.

A non-transitory storage medium storing a control program causing a computation processing part to execute:

• a process of detecting slave devices, which are communication targets of control data having been set using a setting tool, and the slave devices are connected to a field bus;
• and
• a process of performing communication management conforming to a control cycle of the control data,
• wherein the process of performing communication management comprises:
• a process of determining the control cycle using a pre-stored propagation delay time for each of the slave devices that are the communication targets of the control data, and
• measuring the propagation delay time,
• wherein the propagation delay time is stored in association with a type of the slave devices.