Product Description – Schneider TM2DDI32DK Digital Input Module

The Schneider TM2DDI32DK is a high-density digital input expansion module designed to extend the capabilities of Modicon PLCs, including M200, M218, M221, M241, and M251 series. It provides 32 discrete digital inputs in a compact, DIN-rail mountable form factor, making system expansion simple and organized. Moreover, its removable terminal blocks allow for fast and efficient wiring, while LED indicators ensure immediate diagnostics and troubleshooting.

This module supports both sink and source logic according to IEC 61131‑2 standards, with fast response times under 1 millisecond for ON/OFF transitions. Therefore, it is ideal for applications requiring high-speed monitoring and precise signal acquisition. The TM2DDI32DK seamlessly integrates via the TM2 expansion bus, enabling quick installation without the need for external wiring modules.

Technical Specifications

Electrical & I/O

• Supply Voltage: 24 V DC

• Number of Inputs: 32 discrete inputs

• Input Type: Sink or source logic (IEC 61131‑2 compliant)

• Input Voltage Range: 20.4–28.8 V DC

• Input Current: 7 mA per channel at 24 V DC

• Input Impedance: 3 kΩ

• Isolation: 500 V between input groups and logic

Performance

• Response Time ON → OFF: ≤ 1 ms

• Response Time OFF → ON: ≤ 1 ms

• Input Filtering: Configurable via PLC software

• Diagnostics: LED indicators for each input channel

Mechanical

• Mounting: DIN-rail

• Dimensions (W × H × D): 90 × 90 × 70 mm

• Weight: 0.25 kg

• Connection: Removable terminal blocks

• Protection: IP20

Communication & Integration

• Interface: TM2 expansion bus

• Compatible Controllers: Modicon M200, M218, M221, M241, M251

• Configuration: Managed via EcoStruxure Machine Expert – Basic software

Environmental & Compliance

• Operating Temperature: 0 °C to +55 °C

• Storage Temperature: −20 °C to +70 °C

• Relative Humidity: 5–95% non-condensing

• Certifications: CE, UL, CSA

• Sustainability: RoHS and REACh compliant

FAQ

Q1: How many digital inputs does the TM2DDI32DK module provide?
It provides 32 discrete digital input channels for Modicon PLC expansion.

Q2: Which PLCs are compatible with this module?
Compatible with Modicon M200, M218, M221, M241, and M251 PLCs.

Q3: Can I configure input filtering or diagnostics?
Yes, input filtering is configurable, and LED indicators display channel status.

Q4: What is the response time of the inputs?
The module provides ≤1 ms ON/OFF response time for real-time monitoring.

Q5: How is the module mounted and connected?
It is DIN-rail mounted with removable terminal blocks for easy wiring.