Schneider Electric TM3DI8 Discrete Input Module

Product Description

The Schneider Electric TM3DI8 is a high-performance discrete input module engineered for Modicon M221, M241, M251, and M262 logic controllers. This compact module expands your system with eight 24V DC digital inputs, supporting both sink and source logic for versatile integration. Its modular design ensures effortless installation on top hat rails or panel mounting, while providing reliable isolation of 500V AC between inputs and internal logic. Moreover, the TM3DI8 features individual LED indicators for real-time input status monitoring, enhancing operational transparency.

Designed for industrial applications, the TM3DI8 delivers robust performance with a typical current consumption of just 22 mA, maintaining stable operation under IEC 61131-2 standards. Additionally, it supports intuitive configuration via EcoStruxure Machine Expert, enabling faster programming and system expansion. The IP20-rated housing guarantees safe and durable operation in factory environments, while its compact footprint optimizes space on your DIN rail setup.

Key Features & Benefits

• Expands Modicon M2xx controllers with 8 digital inputs at 24V DC.

• Supports sink or source logic, providing maximum integration flexibility.

• Individual green LEDs indicate the status of each input channel.

• Compact 27.4mm width fits in dense control panels, saving space.

• Insulation between inputs and internal logic at 500V AC ensures safety.

• Compatible with EcoStruxure Machine Expert software for fast configuration.

• IP20-rated housing protects against dust and accidental contact.

• Easy DIN rail or panel mounting reduces installation time.

Technical Specifications

General Information

• Product Type: Discrete Input Module

• Compatible Controllers: Modicon M221, M241, M251, M262

• Input Voltage: 24 V DC

• Input Logic: Sink or Source (positive/negative)

• Number of Inputs: 8 (IEC 61131-2 Type 1)

• Input Current: 7 mA

• Voltage State 1: 15–28.8 V DC

• Voltage State 0: 0–5 V DC

• Current State 1: ≥ 2.5 mA

• Current State 0: ≤ 1 mA

• Input Impedance: 3.4 kΩ

• Typical Current Consumption: 22 mA @ 5 V DC

Mechanical & Environmental

• Housing Color: Grey

• Mounting: TH35-15 or TH35-7.5 rail, plate/panel with kit

• Dimensions: 27.4 mm (W) x 84.6 mm (D) x 90 mm (H)

• Weight: 0.085 kg

• Protection Rating: IP20

• Operating Altitude: 0–2000 m

• Shock Resistance: 15 gn, 11 ms

• Pollution Degree: 2

Typical Applications

• Industrial automation process control and monitoring.

• Machine safety and status signal monitoring.

• Remote data acquisition for factory automation systems.

• Expansion of digital input capacity in compact PLC setups.

• Integration with Modicon M2xx controllers for flexible I/O configurations.

FAQ

Q1: Can the TM3DI8 module be used with M262 controllers?
A1: Yes, the TM3DI8 is fully compatible with Modicon M262, M241, M251, and M221 controllers.

Q2: What type of mounting does it support?
A2: The module supports TH35-15 and TH35-7.5 top hat rails, as well as plate or panel mounting with a fixing kit.

Q3: How does the module indicate input status?
A3: Each of the eight inputs has a dedicated green LED for visual status monitoring.

Q4: Is the module protected against dust or accidental contact?
A4: Yes, it has an IP20 rating suitable for industrial environments.

Q5: What software is recommended for configuration?
A5: Schneider Electric’s EcoStruxure Machine Expert software is recommended for programming and system setup.