8 Analog Input to RS485

Remote I/O

Industrial-grade remote I/O module with 8 analog inputs.
Collects analog signals from field sensors and transmits them via RS-485 communication.
Functions as a Modbus RTU slave, compatible with PLCs, HMIs, and SCADA systems.
Reduces wiring by placing the module near sensors, ideal for distributed automation.
Designed for harsh industrial environments with galvanic isolation and surge protection.
Compact, DIN-rail mountable enclosure for easy installation in control panels.

Description

The 8 Analog Input (AI) to RS-485 Module is an Industrial-grade remote I/O module with 8 analog inputs. It collects analog signals from field sensors and transmits them via RS-485 communication. Functions as a Modbus RTU slave, compatible with PLCs, HMIs, and SCADA systems. Reduces wiring by placing the module near sensors, ideal for distributed automation. Designed for harsh industrial environments with galvanic isolation and surge protection. Compact, DIN-rail mountable enclosure for easy installation in control panels.

Specifications

Analog Inputs	8 channels
Input Type	Voltage: 0–10 V, Current: 4–20 mA
Input Resolution	12–16 bit ADC (typical)
Input Accuracy	±0.5 % (typical)
Input Response Time	< 100 ms
Communication Interface	RS-485, 2-wire, half-duplex
Protocol	Modbus RTU
Baud Rate	2400–115200 bps
Power Supply	9–24 V DC, reverse polarity protected
Mounting	DIN-Rail
Operating Temperature	−20 °C to +75 °C
Storage Temperature	−40 °C to +85 °C
Humidity	10–95 % RH, non-condensing

Key Features

Analog Inputs (8 channels)

Supports standard industrial signals: 0–10 V, 4–20 mA (configurable per channel).

High-Resolution ADC

12-16 bit ADC for accurate measurement.

Galvanic Isolation

For electrical safety and protection against noise.

RS-485 Communication

2-wire half-duplex differential bus supporting Modbus RTU.

Configurable

Baud rate (2400–115200 bps), parity, and device address are configurable.

LED Indicators

Visual status for Power ON/OFF, Communication (Tx/Rx), and Input channels.

Industrial Design

Rugged flame-retardant ABS enclosure, DIN-rail mountable.

Wide Power Supply

9–24 V DC with reverse polarity protection.

Functional Description

Analog Input Functionality: Measures voltage or current signals from sensors and converts them into digital data stored in Modbus input registers.

Communication: Uses RS-485 differential bus for reliable, long-distance communication. Acts as a Modbus slave; input values can be read by master devices.

Protection & Diagnostics: Galvanic isolation protects inputs from electrical noise, surges, and ground loops. LED indicators show power, communication, and channel activity.

Integration: Suitable for distributed I/O networks in industrial automation, process control, building management, and remote data acquisition.