Single Phase Keypad Meter communication as per IEC62056-21

General introduction

Single Phase Keypad Meter communication as per IEC62056-21 has the functions such as metering, monitoring, alarm, display, communication and load control, etc. It adopts STS standard encryption algorithm to exchange the information based on TOKEN, Advantages of the meter are high metering accuracy, high level security, strong compatibility, easy operation, etc.

Main functions

• Support UIU
• UIU communication interface: PLC, RF or twist-wire are optional.
• Step tariffs
• TOU: Four tariffs; two sets of time zone tables; two sets of time period tables; support public holidays and weekends.
• Friendly power supply:Support emergency credit.
• Communication interface: Optical port and RS485 interface are available;PLC,RF,GPRS and twist-wire interface are optional.
• Events logs:Detecting and recording events such as current reverse, magnetic influence, phase bypass, meter cover open, terminal cover open, overvoltage, under voltage, etc.
• Anti-tamper: Detecting current reverse, magnetic influence, phase bypass, meter cover open, terminal cover open etc., at the same time, the meter can disconnect power supply which is configurable when the tampers occur.
• Audio and visual alarm: Audio and visual alarm which can be configurable can be for power flow reverse, magnetic influence, phase bypass, meter cover open, terminal cover open, etc.
• Load control: Detecting the customer's load status, it can alarm or disconnect the load when overload.

Technical specifications

Prepaid Power Vending Management System

System introduction
Prepaid power vending management system is based on power vending management software and database with the devices of computer, charging machine, prepaid meters, printers and security modules, etc. The system can configure the meter parameters, manage power vending and electricity consumption, it can report and manage data with effective safety. The system includes remote prepaid, local prepaid and postpaid functions. The system integrates metering, electronic, automation and computer technology to realize the modernization of energy metering, load control, charging, etc.

System Architecture