Redundant operation of automation equipment
An automation equipment and redundant technology, applied in the direction of data exchange through path configuration, digital transmission system, electrical components, etc., can solve problems such as expensive parameterization and trouble
Inactive Publication Date: 2017-06-09
SIEMENS AG
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Problems solved by technology
In addition, the use of two communication devices and two media access control devices is relatively expensive and, since each field device has two MAC addresses, it is cumbersome during parameterization, which includes, for example, the determination of the address tables of the network components
Method used
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Embodiment Construction
[0034] figure 1 A schematic diagram of an automation device 10 is shown, which according to the embodiment is intended to be used for controlling and / or monitoring figure 1 Energy automation systems for electrical power supply systems not shown in (eg of the electrical power supply network). The automation device 10 includes electrical field devices 11 a , 11 b , 11 c , which can be protective devices, measuring devices or control devices, for example. Furthermore, electrical control stations 12 a , 12 b , 12 c are provided in the automation system 10 , which can be, for example, control center devices (for example analysis computers, workstations, servers) of the network control center of the power supply system.
[0035] A communication network 13 is provided for exchanging data telegrams between the individual field devices 11 a - c and the control station 12 a - c , which is designed in a double star configuration for redundant communication in the automation device 10 . ...
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The invention relates to a method for redundantly operating an automation installation (10) in which field devices (11a-c) interchange data messages (D1, D2, D3) with controlling devices (12a-c) via a communication network (13) designed in a dual star structure, wherein a first star structure (13a) contains a first network component (14a) to which the field devices (11a-c) and the controlling devices (12a-c) are connected by means of one first communication link (15a-f) each, and a second star structure (13b) contains a second network component (14b) to which the field devices (11a-c) and the controlling devices (12a-c) are connected by means of one second communication link (16a-f) each. In order to specify a simple and inexpensive solution for redundantly operating the automation installation (10), it is proposed that the field devices (11a-c) each have precisely one media access control device (18) which has a first communication port (19a), which is connected to the first network component (14a) and is activated, and which has a second communication port (19b), which is connected to the second network component (14b) and is deactivated, the first network component (14a) performs monitoring of the individual first communication links (15a-c) to the controlling devices (12a-c) and, in the event of a failure, produces a failure message (A) and sends it to the field devices (11a-c), and in response to the failure message (A) the respective field device (11a-c) deactivates its first communication port (19a) and activates its second communication port (19b). The invention also relates to an appropriate field device (11a-c) and also an automation installation (10).
Description
technical field [0001] The invention relates to a method for redundant operation of an automation installation, wherein the electrical field devices of the automation installation and the electrical control station of the automation installation exchange data telegrams via a communication network constructed in a double star structure, wherein the first communication network The first network component is arranged in the star structure, and the field devices and the control station are respectively connected to the first network component through the first communication connection, and the second network component is set in the second star structure of the communication network, the field device and the control station The stations are each connected to the second network component via a second communication link. [0002] The invention also relates to an electrical field device which is designed for redundant operation in such an automation device. Background technique [...
Claims
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IPC IPC(8): H04L12/44H04L12/40H04L12/24
CPCH04L12/40189H04L12/44H04L41/0659H04L41/0668H04L2012/4026Y04S40/00
Inventor G.纽曼
Owner SIEMENS AG