Energy Monitoring RTU with 2 X Isolated RS-485 with Wi-Fi & Bluetooth
MPN : AT – 7021
Features and Benefits
- Reliable Modbus RTU communication for Industrial Devices.
- GSM and Ethernet supports for Remote Monitoring and Control.
- On-board SD card storage ensures safe and continuous recording.
- Integrated real-time clock for accurate event tracking.
- Overview
- Specifications
The Energy Monitoring RTU combines robust energy data acquisition with dual isolated RS-485 channels for reliable Modbus communication,
GSM and Ethernet connectivity for flexible remote access, on-board SD card storage for secure data logging, and an integrated real-time clock
for precise timestamping.
RTU Unit and Power
| Operating Voltage | 6V to 27V |
|---|---|
| Power Consumption | 1.68W @24V, 1.44W @12V |
| SoC Family | 32 bit ARM Cortex based processor |
| CPU | 1 x Arm Cortex-A7 (900MHz) |
| RAM | 256 MB DDR3L |
| eMMC NAND Flash | 512 MB |
| RTC | Built-in |
| Serial Interface | 2 x RS485 with Isolation |
| USB Interface | 1 x USB Host, 1*USB OTG |
| SD Card Slot | 1 x Micro SDHC |
| Ethernet | 1 x 10/100 Mbit/s Ethernet |
Serial Interface
| Number of Ports | 2 |
|---|---|
| Serial Standard | RS485 |
| Modbus Support | Yes (RTU) |
| Baud Rate | Custom (Default 9600) |
| Parity | None, Even, Odd |
| Data Bits | 8,9 Bit (Including Parity) |
| Stop Bits | 1, 2 |
| Serial Signal | RS485 : 2W D+, D-, GND |
| Terminating Resistor for RS-485 | 120 ohm |
| RS-485 Data Direction Control | ADDC (Automatic Data Direction Control) |
| Galvanic Isolation | 2.5 KV |
Ethernet
| Standard | 1 x 10/100 Mbit/s Ethernet |
|---|---|
| Number of Ethernet Ports | 1 |
| Ethernet Interface | Medium Dependent Interface (MDI) |
| Ethernet Port Specification | RJ-45, 10/100 Mbit/s |
| Timing Support | IEEE 1588 compliant timer (for clock synchronization) |
SD Card Slot
| SD Memory Card Specification | 3.0 |
|---|---|
| SDIO Card Specification Version | 3.0 |
| MMC System Specification Version | 4.2, 4.3, 4.4, 4.41, 4.5, and 5.0 |
| SD-XC card capacity | Up to 2 TByte |
| SPI mode support | Yes |
| Interface | 8 bit |
USB
| USB Host | 1 x USB 2.0 |
|---|---|
| Connector type | Type A connector |
| USB Host/Client | 1 x USB Host/Client |
| Connector type | Micro AB type USB connector |
| Speed | 480 Mbit/s |
| Debug support | Yes |
Resources Content
Model Content
Specifications
General Information
Electrical Specifications
Structure
Environmental Specification
| Country of Origin | India |
| RFID Frequency | 125 KHz |
| Installation | Plug-and-Play |
| Weight | 150g |
| Reading Distance | 1mm to 40mm |
| Communication Interface | USB |
| USB Class | HID |
| Port 2 | RS-485 : D+, D-, GND |
| Output Format | ASCII (Decimal Tag Number) |
| Card / Tag Supported | EM-4100 Tags, Passive Tags |
| Compatible with | Windows, Linux, Android, MAC |
| Antenna | Built-in |
| Relative Humidity | 5% – 85% |
| Storage Temperature | -5°C to 80°C |
| Operating Temperature | 0°C to 65°C |
| Operating Voltage | 5V @50mA (not required external supply) |
