ODOT DT-122F Digital Input Module (16-Channel, NPN/Source Type)

High-Density Input Solution for NPN Logic Architectures

Key Features & Advantages

• 16-Channel High Density: The DT-122F integrates 16 digital input points into a single module. This high-density design reduces the number of modules required for large systems, simplifying the backplane configuration and lowering the overall cost per channel.

• NPN (Source Type) Logic: Designed to interface seamlessly with NPN sensors and switches. The module inputs are Active Low, meaning they detect a signal when the field device connects the input to 0V (Ground). This effectively supports "Source Input" topology where the module supplies the current.

• Integrated Counting Functions: Beyond simple On/Off detection, every single channel on the DT-122F supports a 32-bit counter with a frequency of up to 200Hz. This allows for direct handling of low-speed counting applications (such as product counting or flow metering) without burdening the central PLC controller.

• D-Series Usability & Redundancy:

  • Redundant Backplane: Features the D-Series signature dual-backplane bus, ensuring continuous data transmission even if one bus line encounters a fault (0.6ms refresh cycle).

  • Removable Wiring: Equipped with a 20-pin removable push-in terminal block (compatible with 0.2~1.5mm² wiring), allowing for rapid replacement of the module without disconnecting individual wires.

  • Clear Diagnostics: 16 individual LEDs provide instant status visualization for every channel, alongside module status indicators.

• Industrial Resilience: Built for harsh environments with an extended operating temperature range of -35°C to 60°C, IP20 protection, and optical isolation between the field signals and the internal bus.

  Application Scenarios

  The ODOT DT-122F is widely used in sectors favoring NPN logic:

  • Semiconductor Manufacturing: Interfacing with NPN optical sensors and precision switches.

  • Electronics Assembly: High-density sensor collection in robotic cells.

  • Packaging Machinery: Counting products and detecting position states using legacy NPN sensors.

  • Automotive Industry: Integrating with Japanese-standard machinery and conveyor systems.

  By choosing the DT-122F, you ensure a compact, cost-effective, and highly reliable connection for your NPN-based field devices.