Phoenix Contact

About: Phoenix Contact is a company organization based out in Middletown, Pennsylvania, United States. It is known for research contribution in the topics: Terminal (electronics) & Clamping. The organization has 1257 authors who have published 2097 publications receiving 7673 citations. The organization is also known as: Phoenix Contact (Germany).

Signals processing network bus-system for data transmission between subscribers

Abstract: The bus subscribers (1) are arranged one after the other along a carrying rail (2), each having signal processing units or modules and being connected with all the others, as in a network, through a bus coupling module (3) that reproduces the signals for the bus subscribers. Each subscriber has an individual address and the signals are passed along the bar by radio waves. For this purpose, each subscriber has a coupling input (4) and a coupling output (5). Optical fibres can be used between adjacent subscribers. Each subscriber possesses a unit (8) for evaluating data transfer to a working stage (9) with separate terminals (6, 7), supplying power if needed.

Method for error monitoring, control and data transmission installation and control device

Abstract: To simplify and/or improve error monitoring in a control and data transmission system for redundant process control, provided is a method for error monitoring in which errors detected by a first control device are stored locally as well as transmitted to at least one redundant second control device, which is arranged remotely, and also stored there so that in each case the error history of both control devices and is available locally for diagnosing the whole redundant system. Further provided is a control and data transmission system designed to carry out the method and a control device for use therein.

Data transmission control system

Abstract: The system includes a control arrangement (7) that is connected, via a connection arrangement (2), to a bus system (1). The bus system includes input/output devices. The system is coupled to a heterogeneous network (8) which includes a network management system (10). The network management system communicates preferably based on an SNMP protocol. The variables for the control and data transmission system are preferably stored in an MIB tree. The network management system includes an arrangement for the display, configuration, diagnosis, and/or monitoring of these variables.

Device for protecting against surge/excess voltage has first and second electrodes and an air breakdown spark gap between both electrodes.

Abstract: An arc occurs as an air breakdown spark gap (3) ignites between a first (1) and a second (2) electrode. A series circuit for a voltage-switching element (4) and an ignition element (5) is set up between the first and the second electrodes. The voltage-switching element can be a varistor, a suppressor diode or a gas-filled excess-voltage charge eliminator, or a combination of these.

Fieldbus components, communication system and process for the transmission of data over a high speed transmission medium

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.