Overview

The DL-2100 Digital Input (DI) Module is an 8-channel digital input module designed for industrial automation systems. It supports RS-485 MODBUS RTU communication, allowing remote monitoring of input signals. The module is DIN rail-mountable and features LED indicators for power and communication status.

1. Safety Information (p.3-4)

• Electrical Hazards:
  • Ensure power isolation before installation or maintenance.
  • High voltage risks present; handle with caution.
• Electrostatic Discharge (ESD) Precautions:
  • Avoid static electricity discharges.
  • Store and handle electronic components properly.

2. Storage Before Installation (p.5)

• Store in a dry, sheltered area to prevent environmental damage.
• Inspect all components for physical damage before installation.

3. System Description & Pin Assignments (p.6-7)

• Functionality:
  • Provides 8 digital input channels for monitoring external signals.
  • Supports contact mode and transistor mode inputs.
  • Features MODBUS RTU support for seamless system integration.
  • Includes LED indicators for power and communication status.
• Pin Assignments:
  • CH1 - CH8: Individual digital input channels.
  • RS-485 Communication Ports: Primary and auxiliary connections.
  • 24V DC Power Input.

4. Installation & Wiring (p.8)

• Digital Input Connection:
  • Supports dry contact and transistor input signals.
• Power & Communication Connections:
  • 24V DC power supply.
  • RS-485 MODBUS RTU communication interface.

5. Communication & Data Handling (p.9-10)

• Supported Baud Rates:
  • 1200, 2400, 4800, 9600, 38400, 57600, 115200.
• MODBUS Data Registers:
  • Input Status Read: Retrieves the current state of each digital input.
  • Bitwise Representation: 0 = OFF, 1 = ON.

6. Technical Specifications (p.6)

• Power Supply: 24V DC, 1VA consumption.
• Input Channels: 8 digital inputs (contact/transistor mode).
• Communication Interfaces:
  • 2 x RS-485 MODBUS RTU.
• Environmental Conditions:
  • Operating Temperature: 0°C to 70°C.
  • Storage Temperature: -20°C to 70°C.
• Mechanical Data:
  • Material: Aluminum, Chromate Coating.
  • Dimensions: 105 × 27 × 74 mm.
  • Protection Class: IP20.

7. Revision History (p.10-11)

• Version R1 (2025.03.01) – First revision of the technical manual.