Some natural gas branch station controls the system interrupts the valve chamber including two crafts stations factory and five lines. After a station will complete realizes the natural gas to filter, the measurement and the clear tube transmission function; After 末站 will complete realizes the natural gas to filter, the measurement, the accent presses with the clear tube receive function. A station, 末站 the establishment station controls the system the management to be possible to realize nobody operation and some person of duties level; Will interrupt the valve chamber to realize GPRS on long-distance to pass on condition signal and so on the current capacity, pressure separately arrives a station with 末站.

The test point is dispersible. The line controls the system subordinate's station to control. The entire brake pipe long amounts to several hundred kilometers, must along the route distribute the RTU gathering data.

The natural environment is bad. The brake pipe along the route temperature undulates in a big way, summer, the winter temperature difference is big.

Communication way diversification. The station controls the interior to use RS232, RS485, RJ45, the long-distance transmission uses GPRS.

The system security is high. Loses the gas to belong to the special security profession, is extremely high to the SCADA system request.

ECHO the SCADA 5,000 systems are the true distributional data acquisition and the supervisory system. On the system each computer all is an independent pitch point, each pitch point independent execution system initial assignment duty. This kind of structure merit is cannot off-line affect the entire network because of a pitch point the movement. ECHO the SCADA 5,000 systems carry on the pitch point through the client/server pattern to the pitch point communication, is in the network pitch point sharing data. ECHO on SCADA 5,000 systems WAN moves again when is same, in the long-distance access different position pitch point is similar to on the visit local local area network the pitch point.

The our company fully analyzes this project the concrete demand and in the user characteristic foundation, according to this project scene craft actual situation, considered home, outside automated scene control station in performance, price and post-sale service aspect difference, 末站 field data gathering and the control system select the our company RocK E40 the series PLC product; Interrupts the valve chamber to select SuperE-M series RTU.

ROCK E40. Peacefully controls the company ROCK the E40 series module to have the technological advance, the vitality strong characteristic. According to the scene actual operating mode demand, may set up function formidable RTU, and has the diverse connection function. Structure advanced, is easy to expand. Has the full reliability design, strict performance test, therefore the product can adapt each kind of bad environment.

 

  

 

SuperE-M. This series RTU integration design, structure simple, the integration rate is high. The system module strictly according to the industry standard design, can work Yu Gezhong the bad environment, has the extremely high industry environment compatibility, all leaves the plant the product to pass through the strict test and the examination.

    

 

 GPRS module. DTU is connected through the DB9-M string mouth and the terminal, the interior supports GPRS each kind of agreement, the user only needs through the simple AT order to be allowed with ease to realize the terminal to carry on the GPRS wireless data transmission function; Simultaneously DTU also realized the Chinese and English short note code decoding process in the interior, the user has not needed to understand the short news arranged the decoding algorithm, the user only needs through the simple AT order to be allowed to realize the short note transmission function.