Fieldbus components, communication system and process for the transmission of data over a high speed transmission medium
First Claim
Patent Images
1. A fieldbus component comprising:
- a data link layer, which operates with a fieldbus protocol, a physical layer constituted for high speed data transmission, a standardized medium-independent interface connecting said data link layer and said physical layer, and a layer for matching said data link layer to said physical layer constituted for high speed data transmission by embedding the data coming from said fieldbus protocol based data link layer into a fame to be transmitted, the frame being accepted by said physical layer and comprising a preamble, a start limiter field, a data field and an end limiter field.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention realizes high speed data transmission, as known from the Fast Ethernet, with fieldbus systems in the field of industrial automation. A suitable fieldbus component includes a data link layer, which operates with a fieldbus protocol, and a physical layer, which is constituted for high speed data transmission. There are also provided an interface, which connects the data link layer and the physical layer, and a layer for matching the data link layer to the physical layer.
-
Citations
10 Claims
-
1. A fieldbus component comprising:
-
a data link layer, which operates with a fieldbus protocol, a physical layer constituted for high speed data transmission, a standardized medium-independent interface connecting said data link layer and said physical layer, and a layer for matching said data link layer to said physical layer constituted for high speed data transmission by embedding the data coming from said fieldbus protocol based data link layer into a fame to be transmitted, the frame being accepted by said physical layer and comprising a preamble, a start limiter field, a data field and an end limiter field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A process for transmission of data over a high speed data transmission medium to which several fieldbus components are coupled, comprising the following process steps:
-
(a) receiving data coming from the data link layer of a fieldbus component, which uses a fieldbus protocol, at a matching layer of said fieldbus component connecting said data link layer of said fieldbus component and a standardized medium-independent interface of said fieldbus component, (b) matching said data link layer to a physical layer of said fieldbus component constituted for high speed data transmission by embedding said data into a transmission frame, said frame being accepted by said physical layer of said fieldbus component and comprising a preamble, a start limiter field, a data field and an end limiter field, and (c) passing on said transmission frame to the physical layer of said fieldbus component, said physical layer of said fieldbus component being constituted for high speed data transmission, and (d) feeding said data to be transmitted to said high speed data transmission medium via said physical layer of said fieldbus component. - View Dependent Claims (10)
-
Specification