
Our Serial RS485 IO Controller is engineered to deliver seamless industrial automation and efficient remote monitoring across diverse applications. Built with Modbus RTU protocol support, this controller ensures reliable, high-speed, and accurate data acquisition from multiple devices connected over a serial RS485 network. The compact and versatile design allows easy integration into factories, process industries, and automated systems, enabling the control of both digital and analog inputs/outputs. Its flexibility makes it suitable for managing a wide range of devices, from sensors and actuators to complex industrial machinery.
With this controller, you can effortlessly monitor critical parameters, execute automated control tasks, and integrate with SCADA, PLC, or IoT platforms for centralized data management. Its ability to operate continuously ensures uninterrupted operation and precise control of your industrial processes.
Whether your goal is to streamline production, improve operational efficiency, or implement predictive maintenance, our Serial RS485 IO Controller provides a scalable, cost-effective, and reliable solution to meet all your industrial I/O requirements.
Ensure stable and accurate data transfer across multiple devices with RS485 serial network connectivity. Ideal for long-distance industrial I/O applications.
Experience high-speed digital and analog input/output control with minimal latency, perfect for real-time monitoring and automation tasks.
Seamlessly integrated with SCADA, PLC, HMI, or IoT platforms. Scalable for small setups or large industrial networks for versatile automation solutions.


Input/output Interface
Analog Input Channels: max 8
Analog Output Channels: max 4
Digital Input Channels: max 8
Digital Output Channels: max 8
Isolation: 3k VDC or 2k Vrms
Relay Channels: max 6
Digital Inputs
Connector: Screw-fastened Euroblock terminal
Counter Frequency: 2.5 kHz
Digital Filtering Time Interval: Software configurable
Dry Contact: On: short to GND, Off: open
I/O Mode: DI or event counter
Sensor Type: Dry contact, Wet contact (NPN or PNP)
Digital Outputs
Connector: Screw-fastened Euroblock terminal
Current Rating: 200 mA per channel
I/O Mode: DO or pulse output
I/O Type: Source or Sink
Pulse Output Frequency: 5 kHz
Relays
Breakdown Voltage: 500 VAC
Connector: Screw-fastened Euroblock terminal
Contact Current Rating: Resistive load: 5 A @ 30 VDC, 250 VAC
Contact Resistance: 100 milli-ohms (max.)
Electrical Endurance: 100,000 operations @ 5 A resistive load
Initial Insulation Resistance: 1,000 mega-ohms (min.) @ 500 VDC
Mechanical Endurance: 5,000,000 operations
Pulse Output Frequency: 0.3 Hz at rated load
Type: Form A (N.O.) power relay
Analog Inputs
Accuracy: ±0.1% FSR @ 25°C, ±0.3% FSR @ -10 to 60°C
Built-in Resistor for Current Input: 120 ohms
Connector: Screw-fastened Euroblock terminal
I/O Mode: Voltage/Current
I/O Type: Differential
Input Impedance: 10 mega-ohms (min.)
Input Range: 0 to 10 VDC, 0 to 20 mA, 4 to 20 mA, 4 to 20 mA (with burn-out detection)
Converter Resolution: 16 bits
Analog Outputs
Accuracy: ±0.5% FSR @ 25°C, ±0.7% FSR @ -10 to 60°C
Connector: Screw-fastened Euroblock terminal
Output Range: 0 to 10 VDC, 0 to 20 mA, 4 to 20 mA
Converter Resolution: 12-bit
Serial Interface
Baudrate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 112800, 921600 bps
Connector: Terminal block
No. of Ports: 2
Parity: None, Even, Odd
Pull High/Low Resistor for RS-485: 1 kilo-ohm, 150 kilo-ohms
Serial Standards: RS485
Stop Bits: 1, 2
Surge: 1 kV
ESD: 15 kV
Data Bits: 8
Serial Signals
RS-485-2w: Data+, Data-, GND
Industrial Protocols: Modbus RTU Slave
Power Parameters
Power Connector: Screw-fastened Euroblock terminal
No. of Power Inputs: 1
Input Voltage: 12 to 48 VDC
Power Consumption: 154 mA @ 24 VDC
One unit with IP40 rated ABS plastic enclosure
User Manual
Quick Start Guide
In a packaging factory, the Serial RS485 IO Controller is used to control and monitor conveyor belt motors efficiently. By connecting motor starters, speed sensors, proximity sensors, and limit switches to its digital and analog I/O channels, the controller enables accurate start/stop control, speed adjustment, and fault detection of conveyor belts.
Using the RS485 network with Modbus RTU protocol, multiple conveyor belts can be connected and synchronized through a central PLC, HMI, or SCADA system. This ensures smooth material flow between different sections of the packaging line, quick detection of jams or overload conditions, and faster corrective action. Overall, the system helps in improving production efficiency, reducing downtime, and preventing product blockage in packaging operations.

In industrial ovens used for metal fabrication and food processing, the RS485 IO Controller is used to monitor and control critical heating processes. The controller interfaces with temperature sensors such as RTDs and thermocouples to continuously measure oven temperature, while digital output channels are used to control heating elements and related actuators. By collecting real-time temperature data, the controller ensures stable and uniform heating throughout the process. If temperature levels exceed predefined limits, the system automatically triggers alarms or safety actions, preventing overheating and potential damage. Using RS485 communication with Modbus RTU, the controller can be easily integrated with PLC or SCADA systems for remote monitoring, data logging, and automated temperature adjustments. This application helps maintain consistent product quality, improves energy efficiency, and enhances operator safety in industrial oven operations.

A Serial RS485 IO Controller is used to monitor and control digital and analog I/O devices over an RS485 serial network using Modbus RTU.