subject: Distribution Management System Fieldbus Applications - Fieldbus Distribution, Power Management [print this page] 1. System Overview Beijing West Railway Station in Beijing as the capital of a window, but Low There are many deficiencies in power supply status: Central Station, East Annex Building, West Annex Building, South station house most of the switches without instructions and closing conditions, can not focus on monitoring; East, West Annex, power equipment, voltage, current, power, although a degree of centralized power monitoring, automatic recording, but because of simple equipment, still single Shegang manual shift; distribution indoor temperature, humidity, fire, theft, anti-hacking features not available.
Beijing West Railway Station Low Voltage Power Supply Monitoring System, is an open architecture, distributed system, the system is suitable for power system monitoring requirements of various signals, with flexible configuration performance and high reliability. The main features of the system is completed by a centralized to a distributed change only a common twisted pair can be the scene of various remote I / O Smart sampling modules connected to form a communication network field. Control unit can be installed directly from the field devices distributed last place.
Hardware of the system using PROFIBUS Fieldbus And Kinco-R1 Remote I / O series modules. Which use two Kinco-B131PC adapter card of PC and PROFIBUS connection; 2 Kinco-R131-08IVA / D converter 16 points collected on the scene in the analog signal and converted to digital transmission to the computer via the bus; 8 Block Kinco-R121-08DX8 Road DI digital input module 64 points, 15 Road DI digital input module 37 to complete a total of 555 points, the monitoring system switch; Kinco-B141 relay 2 to extend the bus distance; 14 Smart AC sampling modules 196 points, 831 points total share.
System software with "King View" software configuration, the software platform running on MicrosoftWindows95/98/NT Chinese Chinese interface, using a multi-line, COM components, and other new technology, real-time multi-task, software to run stable and reliable.
2. System Structure (1) system structure is shown below: The two main points from the two IPC System, namely station installed in the center of South station house, they were to read the data from the station, displayed in their CRT.
Kinco-R1 Series I / O module as PROFIBUS field bus from the station to conduct field data collection and the necessary control.
Master and slave together constitute more and more from the PROFIBUS master system. The scheduled period the main stand at the central station and distributed the basement, east wing, West Annex Building, South station house from the station to exchange information. Master can read any information from the station, so there is a redundancy.
(2) the basic system hardware configuration
A. two hosts, with high-grade PC-compatible Pentium II microprocessor, clocked at 233MHZ, memory 64M, HDD 6.4G, PC adapter card 2, Hot Standby mode to run.
B. printer: EPS ONLQ1600K in English printer one.
C. Monitor: Resolution 1024 * 768 SVGA high-resolution color display card driver, 21-inch diagonal size.
D. Sample Module: Orient-2010A / D converter 2, the completion of temperature, humidity and other analog signal acquisition.
E. AC Sampling Module: Kinco-R1 Series power transmitters, sampling three-phase voltage, phase current to complete the substation of the U, I, P, Q, power factor measurement switch state of circuit and there is no continuous accumulation of power electrical degrees, the event log, alarm signals and other tasks.
F. binary Module: Kinco-R1 Series 8-channel digital input module, Kinco-R1 Series 15 channel digital input module, all the switches realize the amount of on-site collection.
G. UPS UPS To provide reliable power to ensure, in order to prevent a sudden break monitoring system caused paralysis and loss of production.
3. The basic functions of the system
(1) operating station power center Power center operator station is a low voltage supply system, the monitoring center, its central station, South station house, east wing, west annex building of the power distribution room of the switch status, temperature, humidity, intrusion alarm and real-time curve, the historical curve, the system reports and other details of the monitoring system.
(2) Field Instruments Field instrument provides a standard 4-20 mA current signal industry, by Kinco-R1 Remote I / O series modules converted digital given by the PROFIBUS Fieldbus Host
Machine monitor. (3) Field Bus Technology
PROFIBUS fieldbus technology use is a significant overall system characteristics. Simple PROFIBUS fieldbus hardware, network protocols and practical, anti-interference ability, is internationally recognized as the best performance of the fieldbus.
4. Systemic function (1) Automatic monitoring of low-voltage distribution system switching states and voltage, current, power, power factor, power consumption and other real-time value;
