Description
The Schneider Electric Modicon TM3 series analog input modules are compact expansion I/Os designed for Modicon M221, M241, and M251 PLCs. These modules provide high-resolution signal conditioning for temperature sensors (thermocouples, RTDs) and standard analog signals (voltage/current), enabling precise process monitoring in machine automation.
Key Features
- Plug-and-Play Expansion: Direct attachment to TM3 local bus (right-side expansion) of Modicon controllers.
- High Resolution: 16-bit ADC for precise measurement.
- Flexible Inputs: Support for thermocouples (J, K, T, etc.), RTDs (Pt100, Pt1000), voltage (0–10V), and current (4–20mA) on configurable channels.
- Compact Design: Slim profile (23.6mm width) for space-optimized control cabinets.
- Diagnostic LEDs: Module status and channel fault indication.
Model Comparison & Selection Guide
Model | Type | Channels | Terminal | Key Applications |
|---|---|---|---|---|
TM3TI8T | Temp/Analog Input | 8 ch | Screw | High-density temperature/analog acquisition |
TM3TI4 | Temp/Analog Input | 4 ch | Screw | Standard 4-channel mixed sensor input |
TM3TI4G | Temp/Analog Input | 4 ch | Spring | Quick-connect for faster wiring (push-in) |
TM3TI4D | Digital/Analog Combo | 4 In / 4 Out | Screw | Mixed analog input + digital output control |
Detailed Specifications
TM3TI8T (8-Channel Universal Input)
- Input Types: Thermocouples (K, J, R, S, B, E, T, N, C), RTDs (Pt100, Pt1000, Ni100), NTC/PTC thermistors, voltage (±10V, 0–10V), current (0–20mA, 4–20mA).
- Resolution: 16-bit (15 bits + sign for bipolar voltages).
- Sampling: 100 ms per enabled channel.
- Power: 24V DC (20.4–28.8V), consumption ~30 mA.
- Dimensions: 90mm (H) × 23.6mm (W) × 70mm (D).
TM3TI4 / TM3TI4G (4-Channel Flexible Input)
- Input Types: Configurable per channel for TC, RTD, voltage, or current.
- Isolation: Channel-to-channel and channel-to-bus isolation.
- Connection: TM3TI4 (screw terminal), TM3TI4G (spring clamp terminal).
- Compatibility: M221, M241, M251, M262 controllers.
TM3TI4D (4 In / 4 Out Combo Module)
- Analog Inputs: 4 channels (same as TM3TI4).
- Digital Outputs: 4x transistor outputs (sourcing).
- Use Case: Ideal for compact control tasks requiring both sensor reading and actuator control.
Warranty & After-Sales
- New Units: 12 months warranty (original Schneider packaging).
- Refurbished Units: 3–6 months warranty (tested & certified).
- Support: Technical assistance for EcoStruxure Machine Expert configuration, sensor wiring diagrams, and module replacement.
Delivery Time
- Standard: 3–5 working days for in-stock items.
- Express: Available upon request (urgent machine downtime situations).
Why Choose Our Store
- Genuine Schneider Electric: Direct from authorized stock.
- TM3 Specialists: Familiar with M221/M241 system integration and legacy project migration.
- Global Supply: Competitive pricing for single units or bulk OEM orders.
Applications
- Process Control: Temperature monitoring in HVAC, food & beverage, and pharmaceutical machinery.
- Machine Building: OEM equipment with integrated temperature/analog sensing.
- Data Acquisition: High-resolution logging of sensor signals.
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