# ADC current acquisition module, N46IB02, 4-20mA, RS485

> ADC current acquisition module N46IB02 with 2 channels for 4-20mA measurement, RS485 Modbus RTU communication (function codes 03 and 06), allowing up to 247 devices to be connected on the same network. Operating voltage 8-25V, operating current 9-13mA. Measurement accuracy 1%, resolution 0.1mA, measurement range 0-25mA. Calibratable if error exceeds 1%. Suitable for sensor monitoring and industrial automation.

- Page: https://sigmanortec.ro/en/adc-current-acquisition-module-n46ib02-4-20ma-rs485
- Price: 42.28 RON
- Availability: In stock; 1-2 zile
- Reference: 88002 · EAN: 5946373120127
- Category: Mechatronics and IoT > Sensors and Modules > ADC and DAC Modules
- Package (shipping data): 0.004 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 03:03 (Europe/Bucharest)

## Description

2-channel 4-20mA current acquisition module, ideal for sensor monitoring and integration into industrial automation. Communicates via RS485 Modbus RTU with functions 03 and 06, allows the connection of up to 247 devices on the same network. Provides accurate 1% measurement with 0.1mA resolution and operates at 8-25V for flexible integration.
Analog current acquisition module, which offers two channels for current measurement in the 4-20mA range. It is ideal for automatic industrial applications and automation systems, offering monitoring through the RS485 communication interface. The module supports RTU instructions and can manage function codes 03 and 06, allowing the connection of up to 247 modules in parallel on the same communication interface.
It supports an operating voltage from 8 to 25V and an operating current between 9 and 13mA, offering versatility for integration into various system configurations. The current measurement on each channel is done with an accuracy of 1%, and the current resolution is 0.1mA. It allows calibration if the error exceeds 1%, thus ensuring precision and reliability in measurements.
Specifications:
Operating Voltage: 8-25V
Operating Current: 9-13mA
Number of Channels: 2 (4-20mA)
Supported RTU Function Codes: 03 and 06
Current Measurement Range: 0-25mA
Resolution Current: 0.1mA
Measurement accuracy: 1% (calibrable if the error > 1%)
Connection Capacity: Supports up to 247 devices in parallel under RTU instruction mode
Use:
Connect the operating voltage between 8 and 25V to the module.
Ensure the correct connection to the table to avoid measurement errors.
Connect the module to your system through the RS485 interface on pins B- and A+.
Configure device addresses to allow network communication.
Use a PLC or computer serial terminal to input the RTU instructions.
Configure function codes 03 and 06 according to system requirements.