Schneider Electric TM3DI16K Discrete Input Module

Product Description

The Schneider Electric Modicon TM3DI16K is a high-performance, 16-channel discrete input module designed to expand Modicon logic controllers efficiently. This compact module seamlessly integrates with M221, M241, M251, and M262 PLCs, enhancing industrial automation flexibility. Its HE-10 connector interface ensures secure wiring, while the IP20-rated housing protects the electronics in harsh industrial environments.

Moreover, each input channel features a dedicated green LED, providing instant local status indication. The module supports both sink and source logic, guaranteeing compatibility across diverse industrial devices. Its wide operating temperature range from –10°C to +55°C allows reliable operation in challenging conditions. Additionally, the interlocking assembly mechanism simplifies installation and system scalability.

Engineers will appreciate its low input current (~7 mA per channel), fast response time (≤1 ms), and isolation of 500 V between inputs and logic, ensuring stable performance and long-term reliability. The TM3DI16K supports DIN-rail mounting, making it compatible with standard industrial enclosures and reducing installation time.

Key Features

• 16 discrete input channels, 24 V DC, IEC 61131-2 Type 3 compliant

• Supports sink or source (positive/negative) logic for versatile integration

• Dedicated green LED per channel for immediate status feedback

• HE-10 connector interface for reliable wiring

• IP20 protection for challenging industrial environments

• Compact dimensions: 90 mm × 21.4 mm × 81.3 mm, weighing 0.65 kg

• Wide operating temperature: –10°C to +55°C

• Isolation: 500 V between inputs and logic, 1500 V between groups

• Compatible with Modicon M221, M241, M251, and M262 PLCs

• DIN-rail (TH35‑7.5/15) and panel mounting options

Technical Specifications

• Discrete Input Voltage: 24 V DC

• Logic Type: Sink or source (positive/negative)

• Input Current: 7 mA per channel

• Input Impedance: 3.4 kΩ

• Voltage State 1 (ON): 15…28.8 V

• Voltage State 0 (OFF): 0…5 V

• Response Time: ≤1 ms typical

• Local Signaling: Green LED per channel

• Isolation: 500 V input-to-logic, 1500 V group-to-group

• Maximum Cable Distance: 50 m unshielded

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

• Dimensions: Height 90 mm × Width 21.4 mm × Depth 81.3 mm

• Weight: 0.65 kg

• Protection: IP20

• Certifications: CE, RoHS, CULus, UKCA, RCM, EAC

• Operating Temperature: –10°C…+55°C

• Storage Temperature: –25°C…+70°C

Typical Applications

• Industrial automation and control systems requiring high-density digital inputs

• Machine monitoring and process control in manufacturing plants

• Building automation and energy management systems

• Integration with Modicon M221, M241, M251, or M262 PLCs for scalable I/O expansion

• Fast-response monitoring of sensors, switches, and actuators

FAQ

Q1: Can the TM3DI16K module be mounted on a standard DIN rail?
Yes, it supports TH35‑7.5 and TH35‑15 rails according to IEC 60715 standards.

Q2: What type of logic does the module support?
The module supports both sink and source (positive/negative) logic, compatible with various field devices.

Q3: Is the module suitable for harsh industrial environments?
Yes, it features IP20 protection and a wide operating temperature range of –10°C to +55°C.

Q4: How many inputs can be connected per module?
The TM3DI16K provides 16 discrete inputs with individual LED status indicators.

Q5: What is the isolation rating of the module?
The module has 500 V isolation between inputs and internal logic and 1500 V between input groups.