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High-Capacity I/O for Demanding Automation Projects
The Selio 24-Relay Modbus I/O Module is engineered for large-scale industrial automation, offering extensive input/output capabilities, robust construction, and seamless integration with modern control systems. Supporting Modbus RTU via RS485 and Modbus TCP/IP via Ethernet, this module is an ideal choice for complex installations requiring reliable signal management and flexible expansion.
Key Benefits
- 8 Opto-Isolated Digital Inputs (AC/DC): Reliable detection of status signals from industrial sensors and switches, immune to electrical interference.
- 3 Analogue Inputs (8 or 12-bit): Accurate measurement of analogue values from transducers and field devices.
- Temperature Input: Direct connection for temperature probes, enabling process or environmental monitoring.
- 24 Relay Outputs: High-density relay configuration for managing multiple devices, actuators, or circuits simultaneously.
- 3 Analogue Voltage Outputs (0-10V, ±10V): Versatile output for controlling variable speed drives, actuators, or other analogue equipment.
- 1 Analogue Current Output (4-20mA): Standard output for process control and signal transmission.
- Integrated Pressure Sensor: Onboard monitoring of pressure for automation or safety systems.
- Buzzer and LED Indicators: Immediate acoustic and visual feedback for status and troubleshooting.
- Modbus Register Assignment Switches: Simple DIP switch configuration for flexible addressing.
- Remote and Physical Reset: Reset the module via button or remotely through Modbus commands.
- Wide Power Range: Operates from 18VDC to 34VDC, with efficient standby consumption (120mA @ 24VDC).
Effortless Integration with Modbus RTU and TCP/IP
The Selio 24-relay module communicates with your network using Modbus RTU (RS485) and Modbus TCP/IP (Ethernet), ensuring compatibility with most industrial control environments. Addressing is straightforward with onboard switches, making system setup and scaling quick and hassle-free.
Extensive Compatibility
- PLCs: Fully compatible with leading brands including Siemens, Allen-Bradley, and Schneider Electric.
- HMIs and CPUs: Integrates with SCADA, BMS, and control systems.
- Any Modbus Device: Universal connectivity with controllers and equipment supporting Modbus RTU or Modbus TCP/IP.
Ideal for a Range of Applications
- Distributed I/O in large automation networks
- Centralised control of multiple actuators and sensors
- Data logging and industrial monitoring
- Building management and facility automation
- Process control for manufacturing and utilities
- Custom electrical panels and system integration
Why Selio Stands Out
- Industrial-grade reliability: Built for 24/7 operation in harsh conditions
- Comprehensive software support: Includes ready-to-use libraries such as SelioEasyTest
- Cost-effective scalability: Expand I/O capacity without excessive investment
- Multiple configurations: Available with 8, 16, or 24 relay outputs to match your project’s scale
Technical Data
| Feature | Specification |
|---|---|
| Digital Inputs | 8 opto-isolated (AC/DC) |
| Analogue Inputs | 3 (8 or 12-bit) |
| Temperature Input | Yes |
| Relay Outputs | 24 |
| Analogue Voltage Outputs | 3 (0-10V, ±10V) |
| Analogue Current Output | 1 (4-20mA) |
| Pressure Sensor | Yes (integrated) |
| Communication | Modbus RTU (RS485) & Modbus TCP/IP (Ethernet) |
| Power Supply | 18-34VDC |
| Standby Consumption | 120mA @ 24VDC |
| Onboard Components | Buzzer, LEDs, Reset, DIP switches |
Frequently Asked Questions
Q: How is the Selio 24-relay module connected to a PLC or industrial controller?
A: The module connects via RS485 (Modbus RTU) or Ethernet (Modbus TCP/IP). Modbus addresses are easily set using the onboard DIP switches. Ready-made software libraries are available for rapid deployment.
Q: Are all input and output channels available at once?
A: Yes, all digital and analogue inputs and outputs can be used simultaneously, offering maximum flexibility for complex systems.
Get a Quote or Place an Order
Enhance your automation infrastructure with the Selio 24-Relay Modbus I/O Module (RTU & TCP/IP). Contact us via chat, email or contact form for tailored pricing and technical advice.