PROFIBUS-DPV1 main communication station and method

Abstract

Provided are a PROFIBUS-DPV1 main communication station and method. The main communication station comprises a plate selection logic controller XC9536, a power source module, a backplane slot, a double-port RAM, a synchronous communication interface Z85C30, a transceiver RS485, a communication controller ASPC2, a bus transceiver ALVC16245, an embedded microprocessor AM188ER, an SRAM and a FLASH 299EE040; after the power source module is connected with an external power source and the main communication station is powered on, the embedded microprocessor AM188ER reads starting information in the FLASH 299EE040 into the SRAM, and then the SRAM works according to the read-in information; data interaction between the main communication station and the outside world is finished by parallel data buses of the backplane slot. The PROFIBUS-DPV1 main communication station is simple in structure, data transmission and processing speed is high, data transmission and processing efficiency is high, and high safety and reliability are achieved.

Description

technical field [0001] The invention relates to the technical field of power plant field bus control, in particular to a PROFIBUS-DPV1 communication master station and a method. Background technique [0002] The PROFIBUS protocol (IEC 61158) proposes a set of international, open, and manufacturer-independent fieldbus standards. Because PROFIBUS has many advantages such as fast, efficient, low cost, distributed and easy to install, its application in power system, especially in power plant control system is more and more extensive. PROFIBUS DPV1 was put forward in April 1998 and expanded the PROFIBUS DPV0 protocol. The advantages of DPV1 are mainly to increase the acyclic service and expand the communication with the 2-type master station. [0003] The most important feature of DPV1 is the acyclic data exchange function between the master station and the slave station, and it can be used for parameter setting, diagnosis and alarm processing. In addition, PROFIBUS DPV1 also ...

AI Technical Summary

Problems solved by technology

[0006] (1) The PROFIBUS master station mostly adopts foreign design, and the core technology is not open, which leads to high use and maintenance costs, and increases the operating cost of the power plant. Due to the high cost and undisclosed technology, the willingness of the power plant to use the field bus control system is hit.

[0007] (2) The system structure and user interface of foreign systems are complex, which is not conducive to the rapid mastery and use of power plant engineers and technicians

[0008] (3) Although PROFIBUS is an open protocol, each manufacturer has purchased foreign communication and protocol stack components in the process of developing the PROFIBUS master station, resulting in rising costs and high technical thresholds

[0009] (4) The existing PROFIBUS master station system pays little attention to acyclic communication data, resulting in a large amount of useful data not being well applied

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