# US 2014/0337455 A1 · Master device of process field bus decentralized periphery

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2014/0337455 A1
- Document ID: US20140337455A1
- Status: Published application
- Kind: A1
- Application number: 14/264,908
- Filed: 2014-04-29
- Published: 2014-11-13
- Earliest claimed: 2013-05-13
- Assignees: Lsis Co., Ltd.
- Applicants: Lsis Co., Ltd.
- Inventors: Duk Yun CHO
- Web page: https://patentgrep.com/patent/US20140337455A1

## CPC

- H04L 41/0816: the condition being an adaptation, e.g. in response to network events
- G05B 19/0421: {Multiprocessor system}
- H04L 12/40019: {Details regarding a bus master}
- H04L 12/40078: {Bus configuration (home automation networks H04L12/2803; arrangements for maintenance or administration H04L41/00)}
- G05B 2219/15012: Configuration software for networks
- G05B 2219/2231: Leader-follower
- G05B 2219/25021: Profibus
- G05B 2219/33112: Configuration software for network
- H04L 2012/40221: {Profibus}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)

## Abstract

The master device of Profibus DP according to the present disclosure automatically configures network by performing a communication with a plurality of slave devices connected through Profibus, the device including a Profibus communication module configured to perform a communication with a plurality of slave devices, an imaginary network configuration information storage configured to be stored in advance with imaginary network configuration information, a network configuration information storage configured to be stored with network configuration information, and a Profibus master state machine configured to obtain network configuration information by performing a communication with the plurality of slave devices in response to the imaginary network configuration information stored in the imaginary network configuration information storage, to store the obtained network configuration information in the network configuration information storage, and to perform a communication with the plurality of slave devices in response to the stored network configuration information.

## Claims

### Claim 1

A master device of Profibus DP, the master device comprising:
a Profibus communication module configured to perform a communication with a plurality of slave devices;
an imaginary network configuration information storage configured to be stored in advance with imaginary network configuration information;
a network configuration information storage configured to be stored with network configuration information; and
a Profibus master state machine configured to obtain network configuration information by performing a communication with the plurality of slave devices based on the imaginary network configuration information stored in the imaginary network configuration information storage, to store the obtained network configuration information in the network configuration information storage, and to perform a communication with the plurality of slave devices based on the stored network configuration information.

### Claim 2 (depends on 1)

The master device of claim 1, further comprising a slave information collector configured to request network configuration information of the plurality of slave devices from the Profibus master state machine, and to collect the requested network configuration information of the plurality of slave devices, wherein
the Profibus master state machine obtains the network configuration information by performing a communication with the plurality of slave devices, when there is a information collection request from the slave information collector, to allow the slave information collector to collect the obtained network configuration information by being provided with the obtained network configuration information, and to store the network configuration information collected by the slave information collector in the network configuration information storage.

### Claim 3 (depends on 2)

The master device of claim 2, wherein the slave information collector determines whether the network configuration information is stored in the network configuration information storage, and requests the network configuration information of the plurality of slave devices from the Profibus master state machine when the network configuration information is not stored in the network configuration information storage.

### Claim 4 (depends on 2)

The master device of claim 2, further comprising a configuration tool communication module configured to perform a communication with a configuration tool, wherein the slave information collector requests the Profibus master state machine the network configuration information of the plurality of slave devices when a network auto configuration command is inputted from the configuration tool communication module.

### Claim 5 (depends on 1)

The master device of claim 1, wherein the Profibus master state machine transmits a diagnosis message to the plurality of slave devices based on the imaginary network configuration information stored in the imaginary network configuration information storage to receive a response message, and transmits a configuration information request message to the plurality of slave devices transmitting the response message to receive network configuration information.