NetraCore Data Logger
The monitoring and control device at the edge of your plant
An industrial data logger and controller that collects from your inverters, meters and sensors over Modbus, runs your control logic locally, and streams to Netra Cloud over LTE or LAN. Bought outright, built to sit in the field for years.
One device, from data collection to control
NetraCore acts as a Modbus master on two independent RS-485 buses, polling up to 64 slave devices plus 20 Modbus TCP channels. Readings are logged locally to a 16 GB card in CSV, buffered through outages, and pushed to Netra Cloud when connectivity is available.
Because the processing happens on the device, control actions—export limiting, genset coordination, load management—keep running whether or not the site is online. You configure them once through the on-device setup wizard and the NetraOS rule builder; no code is required for standard tasks.
You own the hardware. Pair each unit with a Netra Cloud subscription for portfolio dashboards and remote access, or run it standalone on your LAN using its built-in web interface.
What NetraCore Does
Solar Plant Monitoring & Control
Real-time acquisition from inverters, meters and sensors, with control actions driven by live measurements.
Zero-Export Management
Dynamic export limitation across single or multiple inverters to meet grid-connection conditions and prevent reverse flow.
BESS & Hybrid Control
Coordinate battery storage with solar, grid and DG—edge logic for charge/discharge windows and peak shaving.
DG Synchronisation
Run solar and diesel hybrids together with coordinated load sharing and genset reverse-power protection.
Edge Intelligence
NetraOS runs your automation on the device, so response times are fast and a dropped link never stops control.
Resilient Connectivity
Built-in LTE (2G/3G/4G) and 100 Mbit Ethernet, with local data buffering so nothing is lost during an outage.
NetraOS — automation without a control panel
Visual rule builder
Define triggers and actions in the browser—if a measurement crosses a threshold, drive an output, adjust a setpoint, send an alert. Standard control jobs need no scripting at all.
Scriptable for power users
When a site needs something bespoke, the on-device scripting engine and package system let your engineers build custom logic, drivers and dashboards—version-controlled and pushed over the air.
Over-the-air updates
Firmware, device profiles and packages update remotely across the fleet, so a logger installed today keeps gaining features and inverter support without a site visit.
Offline-first data
Local CSV logging with buffering means a week of lost connectivity results in a delayed upload, not a hole in your generation record.
Whether you're commissioning a new plant or retrofitting monitoring and control onto an existing one, NetraCore delivers the interfaces, reliability and flexibility the job needs.
NetraCore Specifications
A rugged, industrial-grade logger built for electrical rooms, outdoor enclosures and remote sites.
| Category | Specification |
|---|---|
| Processor | Industrial-grade microcontroller with FreeRTOS task scheduler |
| Memory | 32 MB RAM |
| Local Storage | 16 GB MicroSD card (removable), CSV data logging |
| Connectivity | Built-in LTE module (Edge / 3G / 4G, worldwide bands); 100 Mbit Ethernet (LAN) |
| Ports | 2 × independent fully isolated RS-485 (Modbus RTU master) |
| Digital Inputs | 4 × configurable digital inputs (25 V max DC) |
| Device Capacity | Up to 64 Modbus RTU slave devices + 20 Modbus TCP channels |
| Protocols | Modbus RTU / TCP, MQTT / MQTTS, HTTP / HTTPS, FTP / FTPS, SNMP (with traps), SMTP (TLS), SNTP, TCP/IP sockets |
| Power Input | 6–60 V DC (12 V 2 A adapter included), < 5 W consumption |
| Operating Mode | Real-time monitoring & control with on-device automation (NetraOS) |
| Configuration | Built-in web server, setup wizard, visual rule builder |
| Mounting | DIN rail / panel mount |
| Operating Environment | Industrial, outdoor-enclosure compatible design |
Full datasheet available on the Downloads page.
Get NetraCore for Your Sites
Tell us how many sites you're equipping and your inverter and meter mix. We'll confirm compatibility, quote hardware quantities and Netra Cloud pricing, and help plan commissioning.