Schneider TM3DI16 Discrete Input Module, Modicon TM3, 16 Inputs 24VDC

The Schneider Electric TM3DI16 is a discrete digital input expansion module from the Modicon TM3 series, designed to add 16 digital inputs at 24V DC to compatible Modicon controllers. It supports both sink and source (positive/negative) logic and is compatible with Modicon M221, M241, M251, and M262 controllers.

Technical specifications:

• Commercial reference: TM3DI16
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Modicon TM3
• Product type: Digital input module
• Number of digital inputs: 16 (IEC 61131-2 Type 3)
• Input logic: Sink or source (positive/negative)
• Input voltage: 24V DC
• Input current: 7 mA per input
• State 1 voltage (guaranteed): 15...28.8V
• State 0 voltage (guaranteed): 0...5V
• Input impedance: 3.4 kΩ
• Response time: 4 ms (ON), 4 ms (OFF)
• Bus current consumption: 40 mA at 5V DC (ON state), 5 mA at 5V DC (OFF state)
• Connection terminal: 10 x 1.5 mm² removable screw terminal block, 3.81 mm pitch
• Max cable length (unshielded): less than 50 m
• Isolation: Between inputs and internal electronics at 500V AC; inputs are not isolated from each other
• Local indication: 1 green LED per channel (input status)
• Dimensions (W x H x D): 27.4 x 90 x 84.6 mm
• Weight: 0.1 kg
• IP protection rating: IP20 (with protective cover in place)
• Operating temperature: -10...35°C (vertical installation), -10...55°C (horizontal installation)
• Storage temperature: -25...70°C
• Relative humidity: 10...95%, non-condensing
• Mounting: DIN rail TH35-7.5 or TH35-15 per IEC 60715, or panel/plate with mounting kit
• Standard: IEC 61131-2
• Certifications: CE, cULus, UKCA, RCM, EAC, cULus HazLoc
• Pollution degree: 2

Features and benefits:

• Flexible input logic supporting both sink and source wiring, simplifying integration with varied field devices
• Individual green LED status indicator per channel enables fast local diagnostics without additional tooling
• Removable screw terminal blocks (3.81 mm pitch) allow pre-wiring of connectors before module installation
• Isolation between inputs and internal bus electronics at 500V AC improves panel safety and noise immunity
• Wide operating temperature range (-10...55°C horizontal) suits demanding industrial environments
• Compact 27.4 mm wide housing conserves DIN rail space in control panels

Applications:

• Expanding digital input capacity on Modicon M221, M241, M251, and M262 PLC systems
• Machine automation panels requiring additional sensor or pushbutton inputs
• Industrial control cabinets with high-density I/O requirements on DIN rail
• Building automation and process control systems using Modicon TM3 architecture

Compliant with IEC 61131-2. Part of the Schneider Electric Modicon TM3 range.

Also known as: Schneider TM3DI16, Schneider Electric TM3DI16, Modicon TM3 digital input module, TM3 16-input expansion module.