EPA bus and LonWorks bus conversion adapter

A technology of bus conversion and adapter, which is applied in the direction of bus network, data exchange through path configuration, comprehensive factory control, etc. It can solve the problems of bus communication difficulties, old equipment can only be eliminated, and system transformation costs increase, so as to reduce the transformation cost Effect

CN101859138AInactive Publication Date: 2010-10-13ZHONGHUAN TIG
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2010-10-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an EPA bus and LonWorks bus conversion adapter. The EPA bus and LonWorks bus conversion adapter comprises a LonWorks bus interface, a core control module and an EPA bus interface, wherein the LonWorks bus interface comprises an LonWorks network chip and a peripheral circuit thereof, and a neuron chip and a peripheral circuit thereof; the core control module comprises an ARM control chip and a peripheral circuit thereof, a 24V-5V power supply module, a 5V-3.3V power supply module and a standard JTAG circuit interface; the ARM control chip prefabricates a software system; and the EPA bus interface comprises an EPA network chip and a peripheral circuit thereof, and a network transformer. The adapter realizes mutual communication of a LonWorks bus and an EPA bus so that LonWorks equipment and EPA equipment can coexist in the same system; and when the equipment of a control system is upgraded in an industrial process, the system reforming cost is greatly lowered because new and old equipment are compatible.
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Description

technical field

[0001] The invention relates to a field bus conversion adapter in industrial process control, in particular to an EPA bus and LonWorks bus conversion adapter. Background technique

[0002] At present, there are many bus standards in the field of industrial automation. The current popular field buses mainly include CAN (Control Area Network), PROFIBUS (Process Field Bus), HART (Highway Addressable Remote Sensor), FF (Foundation Field Bus ), LonWorks. Among them, LonWorks fieldbus technology based on LonWorks technology is the most widely used fieldbus technology in the world. Most of these bus standards are formulated and promoted by well-known companies in the field of automation. Due to their respective interests and technical confidentiality, different bus standards have caused difficulties in communication between various buses, and mutual access and operation between bus devices cannot be achieved. The obvious incompatibility among them makes the old e...

Examples

Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing.

[0013] EPA bus and LonWorks bus conversion adapter includes LonWorks bus interface, core control module and EPA bus interface, LonWorks bus interface includes LonWorks network chip and its peripheral circuits, neuron chip and its peripheral circuits, core control module includes ARM control chip and its peripherals circuit, 24V-5V power supply module, 5V-3.3V power supply module and standard JTAG circuit interface, ARM control chip prefabricated software system, EPA bus interface includes EPA network chip and its peripheral circuit and network transformer, among which LonWorks network chip and its peripheral circuit The neuron chip and its peripheral circuits are connected to the ARM control chip and its peripheral circuits, the EPA network chip and its peripheral circuits are connected to the ARM control chip and its peripheral circuits, and the network transformer, and the...