Slave device, communication system, and actuator

Abstract

The objective is to provide a slave device, a communication system, and an actuator that can easily reconfigure the address set for each device. [Solution] The control device 200 as a slave device is a slave device that communicates with the controller 100 as a master device, and includes a storage unit that can store a unique address that can be set for each slave device, and an initial address that is common to multiple slave devices and is different from the unique address, and a communication control unit that controls communication with the master device using the initial address if the unique address is not stored in the storage unit, and controls communication with the master device using both the unique address and the initial address if the unique address is stored in the storage unit.

Claims

1. A slave device that communicates with a master device, A storage unit capable of storing a unique address that can be set for each of the slave devices, and an initial address that is common to multiple slave devices and different from the unique address, A communication control unit controls communication with the master device using the initial address if the unique address is not stored in the storage unit, and controls communication with the master device using both the unique address and the initial address if the unique address is stored in the storage unit. A slave device having the following features.

2. The communication control unit, The system is configured to reject communication destined for the initial address once communication destined for the aforementioned unique address is initiated. The system is configured to allow communication to the initial address until communication to the aforementioned unique address is initiated. The slave device according to claim 1.

3. The communication control unit, The system is configured to reject communication destined for the initial address, and then, if certain conditions are met, to allow communication destined for the initial address. The slave device according to claim 2.

4. A plurality of slave devices according to any one of claims 1 to 3, A master device having a setting unit that initiates communication addressed to the initial address and sets a different unique address for each slave device that responds to the communication addressed to the initial address, A communication system that includes this.

5. The setting unit is, After instructing all the slave devices to reject communications addressed to the initial address, communication addressed to the initial address is initiated, and each time a slave device responds to a communication addressed to the initial address, a unique address is set for the responding slave device. The communication system according to claim 4.

6. The master device has a storage unit capable of storing the initial address and the set unique address. The setting unit is, If at least one unique address is stored in the storage unit, a unique address different from the unique address stored in the storage unit is set. The communication system according to claim 4.

7. An actuator that communicates with a master device, A storage unit capable of storing a unique address that can be set for each actuator, and an initial address that is common to multiple actuators and different from the unique address, A communication control unit controls communication with the master device using the initial address if the unique address is not stored in the storage unit, and controls communication with the master device using both the unique address and the initial address if the unique address is stored in the storage unit. A drive control unit that controls the operation of the actuator based on communication with the master device, An actuator having

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