4-20mA/0-5V/0-10V to RS485 Converter, 4 Channel

$65.36

This 4-channel signal converter is designed for industrial applications and outputs via RS485 interface with ModBus-RTU communication protocol for compatibility and wide adaptability. It supports the acquisition of 4-20mA, 05V, 010V signals optionally, and provides up to 12-bit AD resolution to ensure high accuracy of data acquisition.

Input Signal *

SKU: ATO-TR-4-Channel

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Delivery date: 6-12 days

Overview

Flexible and multi-functional 4-channel signal converter integrates 4-20mA, 05V, 010V signal acquisition function, both high efficiency and flexibility. The converter module supports ModBus-RTU protocol communication and can realize fast and stable data transmission through RS485 interface. 0.08W ultra-low power consumption design makes it suitable for energy-saving scenarios.

Specification

Model	ATO-SN-3001-I20-4	ATO-SN-3001-V05-4	ATO-SN-3001-V10-4
Acquisition Signal	4-20mA	0~5V	0~10V
Maximum Power Consumption	0.08W (DC12V)
AD Conversion Resolution	12-bit
Number of Input Channels	4-way
Communication Interface	ModBus-RTU
Address Range	1-254 (default 1)
Baud Rate	Numeric range: 0-7
	0: 2400bps
	1: 4800bps
	2: 9600bps
	3: 19200bps
	4: 38400bps
	5: 57600bps
	6: 115200bps
	7: 1200bps
	Default: 4800bps
Working Temperature	-40℃~+60℃
Dimension	88mm*φ2.5mm
Net Weight	350g

Features

4 analog current inputs 4~20mA. voltage inputs 0~5V, 0~10V selectable.
12-bit resolution, 0.1% accuracy ADC.
Support standard ModBus-RTU communication protocol.
Communication operation indicator, anti-dead watchdog.
With lightning protection, static protection RS485 communication interface, op-amp signal isolation address, baud rate, parity bit can be set through the host computer software.
Anti-reverse connection, over-voltage protection, over-current protection, short circuit protection.

Dimensional Drawing (unit: mm)

RS485 converter 4 channel size

Analog Correspondence Table

Type	Acquisition Data (12-bit AD)	Example
4-20mA	0~4095	4mA corresponds to 819 (0mA corresponds to 0), and 20mA corresponds to 4095. e.g., if the read data value is 3000, the measured output current signal is: (3000/4095)*20mA=14.65mA.
0~5V	0~4095	Example: If the read data value is 300, the measured output current signal is: (300/4095)*5V=0.37V.
0~10V	0~4095	Example: If the read data value is 1000, the measured output current signal is: (1000/4095)*10V=2.44V.

Applications

RS485 converter application

Tips: What signal input types does the 4-channel converter support?

The 4-channel converter supports a variety of input signal types, including 4-20mA current signals, 0-5V and 0-10V voltage signals. Each channel can be individually configured for flexible adaptation to different sensors or devices. Whether for industrial automation, environmental monitoring or other applications, the device can meet the diverse signal conversion needs.

Connection and configuration is very simple, the device comes with clear terminal identification and instructions. The inputs are used to receive analog signals (4-20mA, 0-5V or 0-10V), while the outputs transmit data via RS485. Users can set up communication through the accompanying software or the standard MODBUS protocol, which supports parameter configurations such as baud rate, device address, etc., to quickly complete commissioning and deployment.

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