DTSD866 single-phase meter rail modular software design of a single-phase rail meter modular software design, module design, including: metering operation, calibration module, HCI module, communication module, multi-rate calculation module, demand calculation module, event logging module. Flowchart task scheduling module is actually interrupted by a number and a timer at a certain combination of priority. It dominates the entire program single-phase energy meter carrier, driver's normal work correctly. For periodic tasks, such as metering, multi-rate operation, etc., by order of the tasks assigned to perform the timer. For some aperiodic tasks, such as communications, human-computer interaction, the interrupt is triggered by the execution. Each module is mostly independent of each other, code maintenance simple. DTSD866 single-phase meter rail DTSD866 practical application in a single-phase meter rail system in a certain office and wiring diagrams, DTSD866 a system terminal device including lighting, air conditioning or socket terminal load and electrical energy metering operating parameters measurement. After the current transformer connected to a respective current interface. DTSD866 single-phase electricity meter as well as direct access to rail, lower than 80A current directly into the table, wiring and transformers access similar, because of space problems, not repeat them here. Conclusion rail mounting multifunction meter can play a significant role in the sub-metering project, which can effectively reduce the difficulty and cost of construction. DTSD866 performance indicators in line with the national standard GB / T17215 and the technical requirements of the power industry standard DL / T614-2007 for single-phase energy meter prepaid energy meter, applies to government agencies and large public Jianzhong breakdown of power three-phase prepaid metering Fees meter can also be used for energy management and evaluation of enterprises. Overview of the three-phase electronic prepaid energy meter IC card table sharing smart, high safety and reliability card table, using internationally recognized 3DES encryption algorithm; electro enough amount prepaid, built in different ways tariff rate period, prepaid functionality. The amount of pre-alarm, with alarm, power-off function arrears. With real-time monitoring of carrier meter, convenient for users of electricity situation inspection and service. IC card table performance indicators in line with GB / T17215.321-2008 (ICE61036) requirements; IC card performance in line with GB / T18460.3-2001 standards; infrared communication protocol in line with the industry standard DL / T645-1997. IC card table safe, reliable, high accuracy, with LCD display, easy installation and many other features, especially for residential and industrial users of electricity metering and control. Technical Specifications reference voltage: three-phase four-wire 3 * 220 / 380V or 3 * 57.7 / 100V three-phase three-wire 3x100V or 3x380 reference frequency: 50Hz or 60Hz reference current: 3 * 1.5 (6) A, 3 * 3 ( 6) A, 3 * 5 (20) A, 3 * 10 (40) A, 3 * 15 (60) A, 3 * 20 (80) A, 3 * 30 (100) A Accuracy: 1.0 or 2.0 with anti-creep logic design power: <2W output relay contact capacity: Electricity 1.5-2 times the maximum current standard operating temperature: -30 ℃ ~ 70 ℃ operating temperature limits: -40 ℃ ~ 75 ℃ Relative Humidity : ≤90% Dimensions: 228mm * 144mm * 72mm single phase prepaid meter _ Winbond meter (certified) _ table provided by Winbond Power Technology Co., Ltd. Winbond Power Technology Co., Ltd. (www.china-huabang.com) is Wenzhou, Zhejiang Province, electrical instrumentation leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Winbond meter leadership with the staff warmly welcome all inquiries negotiations to create a better future for Winbond instrument.