Ethercat control device and factory automation system having the same
AssigneeSamsung Electronics Co., Ltd.
InventorsKyoung-Whan OH, Jang-Hyoun YOUM, Jae-Hyun KIM, Eun-Kyung HONG
Life of this patent
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Abstract
An EtherCAT control device and a factory automation system having the same are provided. The EtherCAT control device includes a master including a dummy EtherCAT slave controller (ESC) and a first slave configured to communicate data with the master according to an EtherCAT protocol, such that the master synchronizes a timing with the first slave according to a precision time protocol (PTP) method using the dummy ESC.
Claims20
An Ethernet for control automation technology (EtherCAT) control device, comprising:
- a master including a dummy EtherCAT slave controller (ESC), a central processing unit (CPU), and a communication device;
- and
- a slave including an ESC and configured to communicate data with the communication device in the master according to an EtherCAT protocol,
- wherein the master synchronizes a timing with the slave according to a precision time protocol (PTP) method using the dummy ESC, and the slave synchronizes the timing with the master according to the PTP method using the ESC,
- wherein the slave operates as a time master and the master operates as a time slave, and
- wherein the master synchronizes the timing with the slave by correcting a time of the master when the dummy ESC executes an interrupt to the CPU, and transfers an operational command to the slave in synchronization with the timing of the slave.
An Ethernet for control automation technology (EtherCAT) control device, comprising:
- a master including a dummy EtherCAT slave controller (ESC), a master clock generator, a logic circuit, a central processing unit (CPU), and a communication device;
- and
- a slave including an ESC and configured to communicate data with the communication device in the master according to an EtherCAT protocol,
- wherein the master synchronizes a timing with the slave according to a precision time protocol (PTP) method using the dummy ESC, and the slave synchronizes the timing with the master according to the PTP method using the ESC,
- wherein the slave operates as a time master and the master operates as a time slave, and
- wherein the master synchronizes the timing with the slave by correcting a time of the master and then the logic circuit executes an interrupt to the CPU in synchronization with a master clock generated by the master clock generator after the dummy ESC executes an interrupt to the master clock generator, and transfers an operational command to the slave in synchronization with the timing of the slave.
An Ethernet for control automation technology (EtherCAT) control device, comprising:
- a master including a dummy EtherCAT slave controller (ESC), a logic circuit, and a central processing unit (CPU);
- and
- a slave including an ESC and configured to communicate data with the master according to an EtherCAT protocol,
- wherein the master synchronizes a timing with the slave according to a precision time protocol (PTP) method using the dummy ESC, and the slave synchronizes the timing with the master according to the PTP method using the ESC,
- wherein the slave operates as a time master and the master operates as a time slave, and
- wherein the master synchronizes the timing with the slave by correcting a time of the master using the dummy ESC and then the logic circuit executes an interrupt to the CPU in response to an interrupt executed by the dummy ESC, and transfers an operational command to the slave in synchronization with the timing of the slave.
Dependencies are inferred from the claim text.