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Low power ZigBee Smart Energy module for metering and control

ByteSnap Design's ZMM-01 is the industry's first ZigBee® Smart Energy compliant module to combine three key features: lower power, faster deployment and trouble-free compliance with wireless standards. The module is suited to distributed control and monitoring systems, including: street lighting control, data centre power monitoring, EV charging and HVAC control.

ByteSnap Design's ZMM-01 is the first commercially available the ZigBee-enabled module that combines metering and control with full support of ZigBee Smart Energy in a single unit.

The ZMM-01 helps reduce time to market for integrators and manufacturers developing products that require centralised management systems, typical applications include: electric vehicle wireless charging, street lighting control, data centre power monitoring and HVAC control.

Wireless design and certification can add many months to product development timelines; using the ZMM-01 can cut that time dramatically because the core wireless element is already certified for ZigBee Smart Energy. Customers using the module still need to submit their finished products for certification testing, but the likelihood of failing should be low

The key to the ZMM-01's comprehensive capabilities is ByteSnap Design's expertise in combining hardware and software design to develop low power devices. The module uses the market-leading Ember EM357 ZigBee radio-on-a-chip, which integrates a full IEEE 802.15.4/ZigBee wireless transceiver with an ARM Cortex-M3 microcontroller. It runs the ZigBee Smart Energy protocol and application code while consuming just 30mA to transmit.

The ZMM-01's Analogue Front End (AFE) is the Cirrus Logic CS5467. The AFE incorporates on-chip functions for measuring voltage and current to calculate active, reactive and apparent power/energy with Energy Linearity: ±0.1% of Reading over 1000:1 Dynamic Range.

The ZMM-01 simplifies working with ZigBee Smart Energy – a complete ZMM-01 based ZigBee SE smart meter can be implemented with a shunt resistor and current transformer (CT). The resulting device can form the heart of a meter that meets IEC EN62053-21 class 1 or 62053-23 class 2.

The development (ZDM-01) kit provides a safe, flexible platform for integrating customer circuits. An on-board PIC microcontroller simulates a connected mains load and can vary voltage and current amplitudes, allowing testing and evaluation without working on live equipment.

Author
ByteSnap Design

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