Method for centrally setting data rate in a data transmission facility and a device for centrally setting data rates
First Claim
1. A system for centrally setting a data rate in a data transmission facility, comprising:
- a) a central station; and
b) subscribers;
wherein said central station is disposed in series with said subscribers by a bus circuit;
wherein said subscribers are disposed in series with each other by bus circuits;
wherein each subscriber has a protocol core;
wherein each subscriber has data rate detectors;
wherein each subscriber has a data rate controller;
wherein said central station outputs data rate setting telegrams of a data rate to be set in said subscribers;
wherein a first subscriber inputs said data rate of said data rate setting telegrams outputted from said central station;
wherein each data rate detector of a respective subscriber detects a data rate different than that of the other data rate detectors thereof to allow only one data rate detector to detect only one valid data rate and in response thereto generate only one data rate validity signal; and
wherein said data rate detectors of said respective subscriber simultaneously receive and evaluate said data rate inputted until such time as said one valid data rate has been detected by said one data rate detector thereof forming a detected data rate and in response thereto said one data rate detector thereof sends said one data rate validating signal thereof to said data rate controller thereof and in response thereto said data rate controller thereof selects said one data rate detector thereof having said detected data rate to form a bypass-type connection through said respective subscriber to output said detected data rate from said respective subscriber to be inputted by a next subscriber in series therewith to be used thereby to start data rate setting therein and so on until all of said subscribers in series with each other have data rates set therein.
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Accused Products
Abstract
In the method according to the present invention for centrally setting data rate in a data transmission facility, the data rate is detected and set at subscribers on the basis of data rate setting telegrams sent by a central station. In addition to an interface to a peripheral application, the subscribers include a protocol core and devices according to the present invention for data rate detection and setting. Data rate detection is solved with a telegram detection system, wherein one data rate detector is provided for each data rate and the transmitted telegrams in the timed data rate setting phase have the same content for each of the data rates concerned.
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Citations
28 Claims
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1. A system for centrally setting a data rate in a data transmission facility, comprising:
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a) a central station; and
b) subscribers;
wherein said central station is disposed in series with said subscribers by a bus circuit;
wherein said subscribers are disposed in series with each other by bus circuits;
wherein each subscriber has a protocol core;
wherein each subscriber has data rate detectors;
wherein each subscriber has a data rate controller;
wherein said central station outputs data rate setting telegrams of a data rate to be set in said subscribers;
wherein a first subscriber inputs said data rate of said data rate setting telegrams outputted from said central station;
wherein each data rate detector of a respective subscriber detects a data rate different than that of the other data rate detectors thereof to allow only one data rate detector to detect only one valid data rate and in response thereto generate only one data rate validity signal; and
wherein said data rate detectors of said respective subscriber simultaneously receive and evaluate said data rate inputted until such time as said one valid data rate has been detected by said one data rate detector thereof forming a detected data rate and in response thereto said one data rate detector thereof sends said one data rate validating signal thereof to said data rate controller thereof and in response thereto said data rate controller thereof selects said one data rate detector thereof having said detected data rate to form a bypass-type connection through said respective subscriber to output said detected data rate from said respective subscriber to be inputted by a next subscriber in series therewith to be used thereby to start data rate setting therein and so on until all of said subscribers in series with each other have data rates set therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for centrally setting a data rate in a data transmission facility, comprising the steps of:
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a) providing a central station and subscribers;
b) disposing the central station in series with the subscribers by a bus circuit;
c) disposing the subscribers in series with each other by bus circuits;
d) providing each subscriber with a protocol core, data rate detectors, and a data rate controller;
e) outputting by the central station data rate setting telegrams of a data rate to be set in the subscribers;
f) inputting by a first subscriber the data rate of the data rate setting telegrams outputted from the central station;
g) detecting by each data rate detector of a respective subscriber a data rate different than that of the other data rate detectors thereof to allow only one data rate detector to detect only one valid data rate and in response thereto generate only one data rate validity signal; and
h) receiving and evaluating by the data rate detectors of the respective subscriber simultaneously the data rate inputted until such time as the one valid data rate has been detected by the one data rate detector thereof forming a detected data rate and in response thereto the one data rate detector thereof sends the one data rate validating signal thereof to the data rate controller thereof and in response thereto the data rate controller thereof selects the one data rate detector thereof having the detected data rate to form a bypass-type connection through the respective subscriber to output the detected data rate from the respective subscriber to be inputted by a next subscriber in series therewith to be used thereby to start data rate setting therein and so on until all of the subscribers in series with each other have data rates set therein. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification