| 摘要 |
Multifunctional meter measures voltage, current, demand, factor, power consumption also water, natural gas, fuel and other items. The design has a 16 bit micro-programmed processing unit, and manages interaction with different hardware components and realizes the functions of communication, data registry and operation control. Composed of a modular form and includes capacities for network connection and inclusion as a module within multi-point measurement systems. The modular components are: three-phase measurement machine, interface and peripherals for LCD screen, high precision clock in real time, external non-volatile memory bank (flash), energy failure detector to backup vital information for the meter, interface and peripherals for navigation buttons, interface and peripherals for RGB leds indicators of events and status, UART communications interface, RS 485 communication bus, ANSI C12 protocol optical communication interface, communications interface to external modules like Ethernet, GPRS, Wi Fi or compatibles, digital inputs for the interface of Sensory converters to pulses. |
