Remote Terminal Unit

1. Remote Terminal Unit Product Overview

Remote Terminal Unit provides comprehensive functions such as collection, storage, transmission, display, control, alarm and transmission of hydrological and meteorological data.Remote Terminal Unit (referred to as RTU terminal in this article) integrates low-power wireless communication technology and Ethernet transmission technology.It has multi-channel analog and switch acquisition functions and logic control functions.It has a built-in display screen to facilitate on-site visual viewing of data and configuration.Working parameters can monitor on-site sensor change data and control status, and automatically alarm and report.Mainly aimed at remote telemetry monitoring applications in water resources, water conservancy, meteorology, agriculture, environmental protection, oil fields and other industries.

2.Remote Terminal Unit Product Features

1.Adopt high-performance industrial-grade ARM processor with powerful logical computing capabilities.

2.A microprocessor containing WATCHDOG and FLASH makes the system more resistant to interference.

3.Collect change quantity function: Collect analog signals such as pressure, water level, water quality, temperature, weather, etc.to automatically alarm if they exceed limits.

4.Instrument data collection function: collect flow and rainfall data of flow meters and rain gauges.

5.Collect IO status function: Collect operating status signals of on-site IO equipment such as valves, water pumps, etc.

6.Dual RS485 communication interface, supports remote image taking.

7.It can have a built-in large-capacity MicroSD card to automatically store data reports and support U disk data export function.

8.Supports settable upper and lower limits of analog alarm and automatically reports alarm information.

9.Support remote control function, which can remotely control water pumps, valves and other equipment.

10.Support power supply status and door status detection.

11.Support the function of supplementary reporting when the network is disconnected, and reject missing data.

12.Supports simultaneous communication between GPRS wireless mode and network port wired mode.

13.Supports transcribing multiple device communication protocols (please indicate when purchasing and specify the instrument model to be connected).

14.It has automatic scheduled reporting and event-triggered reporting mechanisms.

15.Supports MJ-GPRS protocol communication method, which is convenient for direct connection with the monitoring center.

16.Support the "Water Resources Monitoring Data Transmission Protocol" and "Contaminant Online Monitoring Data Transmission Protocol".

17.Built-in watchdog, no crash, automatic recovery when offline.

18.Industrial-grade quality assurance, stable and reliable performance, and high cost performance.

19.Provide serial port program upgrade and remote upgrade functions.

3.Remote Terminal Unit technical parameters

AI input configuration: 6 analog acquisition inputs (one of which can collect battery voltage).

DI input configuration: 5 switching inputs.

DO output configuration: 3 relay outputs.

Storage capacity: 8M cycle storage.

Report storage: MicroSD card, supports U disk data export function.

1 wired Ethernet port communication (optional).

1 channel 4G supports China Mobile, China Unicom and China Telecom communications.

Serial port configuration: 2-channel RS485 (one channel for meter reading and another channel for camera to take pictures).

Baud rate: RS485 1200~57600bits/s optional.

Power supply: 9V~30V DC.

Average current: <40mA/12V.

4.Remote Terminal Unit usage conditions

Working environment: Temperature: -30℃～75℃; Humidity: <95% (no condensation)

Installation method: fixed hole installation

Overall dimensions: 160mm×148mm×41mm