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N4AIA04 4-Channel Analog Input RS485 Modbus RTU ADC Module | 0-5V, 0-10V, 0-20mA, 4-20mA for PLC & Industrial Automation
The N4AIA04 4-Channel Analog Input Module is a compact industrial-grade data acquisition module designed to convert analog voltage and current signals into digital data using the RS485 Modbus RTU protocol. It features four independent analog input channels, supporting 0-5V, 0-10V, 0-20mA, and 4-20mA signal acquisition, making it ideal for PLCs, SCADA systems, HMIs, industrial controllers, and IoT applications.
Powered by a wide DC 8-25V supply, the N4AIA04 delivers reliable and accurate analog measurements with 1% measurement accuracy, 0.01V voltage resolution, and 0.1mA current resolution. It supports standard Modbus RTU function codes 03 and 06, allowing seamless integration with PLCs, industrial PCs, and monitoring software. Up to 247 devices can be connected on a single RS485 network, making it suitable for distributed automation and remote monitoring systems.
Whether you're collecting data from pressure transmitters, temperature sensors, flow meters, or other analog industrial sensors, the N4AIA04 offers a dependable and cost-effective solution for industrial automation, process control, and remote data acquisition.
Features
- 4-channel analog input acquisition module
- Supports 0-5V, 0-10V, 0-20mA, and 4-20mA input signals
- Standard RS485 Modbus RTU communication
- Compatible with PLCs, SCADA, HMIs, and industrial controllers
- Wide operating voltage: DC 8V–25V
- Voltage resolution: 0.01V
- Current resolution: 0.1mA
- Measurement accuracy: ±1% (calibratable)
- Supports Modbus RTU Function Codes 03 (Read Holding Registers) and 06 (Write Single Register)
- Connect up to 247 devices on the same RS485 bus
- Compact size for DIN rail panels and industrial control cabinets
Specifications
- Model: N4AIA04
- Product Type: 4-Channel Analog Input (ADC) Module
- Analog Input Channels: 4 Channels
- Input Signal Types: 0–5V, 0–10V, 0–20mA, 4–20mA
- Channel Configuration: CH1: 0–5V, CH2: 0–10V, CH3 & CH4: 0–20mA / 4–20mA
- Communication Interface: RS485
- Communication Protocol: Modbus RTU
- Supported Function Codes: 03 (Read Holding Registers), 06 (Write Single Register)
- Supply Voltage: DC 8V–25V (Supports 9V, 12V, 15V, 24V)
- Operating Current: 10–14mA
- Power Consumption: Approximately 0.2W
- Voltage Resolution: 0.01V
- Current Resolution: 0.1mA
- Measurement Accuracy: ±1% (User Calibratable)
- Maximum RS485 Nodes: Up to 247 Devices
- Operating Temperature: -20°C to +80°C
- Dimensions: 45 × 30 × 15 mm
- Weight: Approximately 11 g
- Mounting: Panel/Embedded Installation
- Interface: Screw Terminal Connections
Applications
- PLC analog signal acquisition
- Industrial automation systems
- SCADA and HMI monitoring
- Process control systems
- Pressure, level, flow, and temperature transmitters
- Smart factory and Industry 4.0 projects
- Remote sensor monitoring
- Environmental data acquisition
- Energy management systems
- Building automation and IoT gateways
Package Includes
- 1 × N4AIA04 4-Channel Analog Input RS485 Modbus RTU Module
Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)
