• Schneider TM2DDI16DT
  • Schneider TM2DDI16DT
  • Schneider TM2DDI16DT
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Schneider Electric TM2DDI16DT Modicon M238 Discrete Input Module

Schneider Electric TM2DDI16DT Modicon M238 Discrete Input Module

Description

The Schneider Electric TM2DDI16DT is a 16-channel discrete input module designed for integration with Modicon M238 and Twido programmable logic controller systems. This expansion module provides reliable digital state acquisition,...

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SKU: TM2DDI16DT
Vendor: Schneider
Category: Digital Input Module
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Description

The Schneider Electric TM2DDI16DT is a 16-channel discrete input module designed for integration with Modicon M238 and Twido programmable logic controller systems. This expansion module provides reliable digital state acquisition, detecting binary field potentials and registering channel states via the internal logic chassis network. It is engineered for industrial environments requiring precise, deterministic I/O monitoring.

Features

  • 16 discrete input channels supporting 24 VDC sink/source configurations.
  • Integrated hardware-controlled I/O density scaling for minimized execution lag.
  • 500 V RMS isolation between field inputs and internal logic circuitry.
  • Designed for seamless compatibility with Modicon M238 and Twido controller firmware profiles.
  • Compact form factor suitable for high-density control cabinet layouts.

Applications

This module is typically utilized in automated manufacturing, process control, and machine automation environments where high-frequency switching and reliable digital input monitoring are required. It serves as an essential expansion component for scaling I/O capacity in Modicon-based control architectures.

Technical Specifications

Parameter Specification
Model TM2DDI16DT
Brand Schneider Electric
Input Channels 16 discrete inputs
Input Voltage 24 VDC (sink/source)
Input Current 7 mA per channel
Power Consumption 25 mA at 5 VDC (internal) / 40 mA at 24 VDC (external)
Isolation 500 V RMS (field to logic)
Operating Temperature -10 to 55 deg C

Installation Guidelines

  • Power Isolation: Always disconnect operational power before installing or removing the module. Hot-swapping is not supported and may cause controller faults.
  • Mounting: Secure the module onto a 35 mm symmetric DIN rail using the integrated mechanical retention clip to ensure stability against vibration.
  • Wiring: Terminate field wiring using the removable screw terminal block. Ensure physical separation between signal wiring and high-voltage AC lines to mitigate electromagnetic interference (EMI).
  • Thermal Management: Maintain adequate clearance above and below the module to facilitate natural convection and cooling.

FAQ

Q: Does the TM2DDI16DT support live insertion and hot-swap procedures?
A: No. The Modicon M238 and Twido bus interfaces require complete operational power isolation prior to component removal or installation.

Q: What are the logic threshold parameters for the inputs?
A: A logic state 1 (On) is recognized at 15 VDC or greater (min 2.5 mA). The channel transitions to logic state 0 (Off) when the potential falls below 5 VDC or current drops below 1 mA.