Schneider TM2DDI32DK 32-Channel Digital Input Expansion Module

Overview

The Schneider TM2DDI32DK is a robust digital input expansion module designed to enhance the capacity of Modicon logic controllers. It provides 32 additional discrete input channels, allowing engineers to connect a wider range of field devices efficiently. Compact and DIN-rail mountable, the module integrates seamlessly into industrial automation systems, delivering reliable performance in manufacturing, process control, and building automation environments. Moreover, its compatibility with Twido and Advantys OTB controllers ensures flexible system expansion without extensive redesign.

Key Features and Functional Highlights

• Expands Modicon controllers with 32 additional 24 VDC digital input channels.

• Supports both sink and source logic inputs, offering versatile connectivity options.

• Galvanically isolated inputs protect the internal logic from voltage spikes and electrical noise.

• Compact DIN-rail design enables easy integration into existing control panels.

• Provides fast response times of 4 ms for both ON and OFF input states, ensuring real-time monitoring.

• Removable terminal blocks simplify wiring and maintenance for engineers in the field.

• Local LED indicators provide clear status feedback for each input channel.

• End-of-service replacement available through Modicon TM3 I/O modules for future-proofing.

Technical Specifications

• Manufacturer: Schneider Electric

• Part Number: TM2DDI32DK

• Series: TM2 Expansion Modules

• Product Type: Digital Input Expansion Module

• Number of Inputs: 32 discrete inputs

• Input Voltage: 24 VDC (20.4–28.8 VDC operating range)

• Input Logic Type: Sink or Source

• Input Current: 5 mA per channel

• Input Impedance: 4.4 kΩ

• Isolation: 500 V galvanic isolation between inputs and logic

• Response Time: 4 ms (state 0 or 1)

• Connection: 1 connector HE10, removable terminal blocks

• Mounting: 35 mm DIN rail

• Dimensions: 120 × 90 × 40 mm

• Weight: 0.081 kg

• Operating Temperature: 0–55 °C

• Storage Temperature: –25 to +70 °C

• Local Signalling: 2 display blocks

• Current Consumption: 65 mA at 5 V DC for all inputs active

Typical Applications

• Expanding digital input capacity for Modicon M238, M221, M241, and M251 logic controllers.

• Industrial automation including assembly lines, process monitoring, and factory control panels.

• Building management systems requiring large-scale sensor integration.

• Retrofitting existing control systems without replacing the main PLC.

FAQ

Q: Is TM2DDI32DK compatible with newer Modicon controllers?
A: It is primarily compatible with Twido and Advantys OTB controllers. For newer Modicon M221, M241, or M251 controllers, TM3 I/O modules are recommended.

Q: Can it handle both sink and source input configurations?
A: Yes, the module supports both sink and source logic inputs for flexible wiring options.

Q: How is the module mounted in the control panel?
A: The module mounts easily on a standard 35 mm DIN rail for space-efficient installation.

Q: What protection does the module provide against electrical interference?
A: It offers 500 V galvanic isolation between input channels and internal logic to safeguard the system.

Q: What is the module’s response time for detecting input changes?
A: The TM2DDI32DK provides a fast 4 ms response time for both ON and OFF state detection.