Controller having a communications interface, receiver and method for communication
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G05B-019/416
H04L-029/08
H04L-029/06
출원번호
US-0179001
(2016-06-10)
등록번호
US-10234850
(2019-03-19)
우선권정보
DE-10 2015 210 621 (2015-06-10)
발명자
/ 주소
Cobanov, Ante
Wiesner, Martin
Braun, Manuel
Blumentritt, Ralf
출원인 / 주소
FESTO AG & CO. KG
대리인 / 주소
Hoffmann & Baron, LLP
인용정보
피인용 횟수 :
0인용 특허 :
13
초록▼
A controller for controlling an electric or a fluidic valve drive. The controller includes a communications interface which is configured to output a current signal and convert drive-related measurement information into a current signal level within a current interval according to a communications p
A controller for controlling an electric or a fluidic valve drive. The controller includes a communications interface which is configured to output a current signal and convert drive-related measurement information into a current signal level within a current interval according to a communications protocol. The communications interface is further configured to convert at least two different items of device status information into different current signals levels outside of the current interval.
대표청구항▼
1. An arrangement, comprising an electric or fluidic valve drive, a controller for controlling the valve drive, and a sensor system for detecting drive-related measurement information, the controller having a control device which is configured to supply control signals for the valve drive in order t
1. An arrangement, comprising an electric or fluidic valve drive, a controller for controlling the valve drive, and a sensor system for detecting drive-related measurement information, the controller having a control device which is configured to supply control signals for the valve drive in order to cause a predefinable movement of the valve drive and configured to receive the drive-related measurement information, the controller further having, as a communications interface, an analog current interface, which is configured to output a current signal and convert the drive-related measurement information into an analog current signal level within a current interval according to a communications protocol, wherein the control device is further configured to generate at least two different items of device status information, and the analog current interface is further configured to convert the at least two different items of device status information into different discrete current signal levels outside of the current interval, wherein the at least two items of device status information comprise at least one of initialisation information, calibration information, error code information, level exceedance information and parameter error information. 2. The arrangement according to claim 1, wherein the at least two items of device status information are different from device failure information. 3. The arrangement according to claim 1, wherein the sensor system is configured to detect, as the drive-related measurement information, the position of a piston. 4. The arrangement according to claim 1, wherein the current interface is configured to convert the at least two items of device status information into different current signal levels which have a predetermined level difference from each other. 5. The arrangement according to claim 1, wherein the control device is further configured to detect an item of device failure information, and the current interface is further configured to convert the at least two different items of device status information into different current signal levels outside of the current interval with a predetermined maximum level duration, and to convert the item of device failure information into a current signal level outside of the current interval with a predetermined minimum signal duration which is greater than the maximum level duration. 6. The arrangement according to claim 1, wherein the current interval according to the communications protocol comprises the interval from 3.8 mA to 20.8 mA. 7. The arrangement according to claim 1, wherein the current signal levels, into which the items of device status information and/or the item of device failure information are converted, are less than or equal to 3.5 mA and/or greater than or equal to 21 mA. 8. The arrangement according to claim 1, wherein the communications interface comprises an analogue current interface. 9. The arrangement according to claim 1, further comprising a receiver for communication with the controller, wherein the receiver is configured to receive the current signal output by the controller, to detect the current signal level thereof and to convert a detected current signal level within the current interval into drive-related measurement information, wherein the receiver is further configured to convert at least two detected current signal levels outside of the current interval into two different items of device status information. 10. A method for communication, in the arrangement according to claim 9, between the controller for controlling the electric or a fluidic valve drive and the receiver, the method comprising the following steps: detecting first and second items of device status information, converting the first and second items of device status information into two different current signal levels outside of a current interval predefined for communication of drive-related measurement information according to a communications protocol, transmitting the current signal with the two current signal levels from the controller to the receiver, receiving the current signal at the receiver, detecting the current signal level of the current signal, and converting the current signal level into the first and second items of device status information.
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