产品介绍
The Schneider Electric TM2AMI2HT is a 2-channel analog input expansion module designed specifically for Modicon logic controllers, including the M221, M241, M251, and M238 series. As part / the TM2 family / I/O expansion modules, the TM2AMI2HT enhances a controller’s ability to read precision analog signals from sensors and transmitters used in a wide range / automation applications.
This module is built for demanding industrial environments and supports both current (0–20 mA, 4–20 mA) and voltage (0–10 V) input signals. With 14-bit resolution, it delivers highly accurate analog readings required for process monitoring and control. Installation is made simple thanks to the compact DIN rail-mounted design and its seamless integration with the controller via the TM2 backplane bus.
Whether you’re building a control system for packaging machines, HVAC automation, or process industries, the TM2AMI2HT /fers a cost-effective way to expand analog signal capacity without needing a larger controller.
Technical Specifications
| Parameter | Details |
|---|---|
| Product Name | TM2AMI2HT |
| 制造商 | Schneider Electric |
| Product Family | Modicon TM2 |
| Type | Analog Input Expansion Module |
| Compatible Controllers | Modicon M221, M238, M241, M251 |
| Number / Analog Inputs | 2 |
| Input Signal Types | 0–10 VDC, 0–20 mA, 4–20 mA |
| Resolution | 14 bits |
| Accuracy | ±0.5% / full-scale |
| Input Impedance | >1 MΩ (voltage), 250 Ω (current) |
| Conversion Time | 2 ms per channel |
| Input Isolation | Galvanic isolation between input channels and logic |
| Power Supply | Via TM2 backplane (no external power required) |
| Mounting Method | DIN Rail (35 mm) |
| Ingress Protection | IP20 |
| Operating Temperature | 0°C to +55°C (32°F to 131°F) |
| Storage Temperature | -40°C to +70°C |
| Relative Humidity | 5% to 95% (non-condensing) |
| Certifications | CE, UL, cULus, CSA, RoHS |
| Dimensions (W x H x D) | 23.5 x 70 x 90 mm |
| 重量 | 0.085 kg |
Applications
The TM2AMI2HT module is engineered for use in systems that require precise analog signal acquisition. Its flexibility in signal compatibility makes it ideal across multiple industries, including:
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Industrial Process Automation: For reading analog signals such as pressure, temperature, flow, or level from transducers and transmitters.
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HVAC and Building Control: To monitor analog environmental values such as room temperature or humidity levels.
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Water and Wastewater Treatment: Used to interface with sensors measuring flow rates, chemical levels, or turbidity.
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Agricultural Technology: Interfaces with sensors measuring soil moisture, ambient conditions, or nutrient levels.
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Packaging and Robotics: Provides analog feedback for position control, fluid dispensing, and quality inspection.
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Energy Management Systems: Collects real-time data for load measurement, transformer monitoring, and efficiency analytics.
Advantages
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High Precision Measurement: With 14-bit resolution and low error margins, the module ensures accurate signal reading for control-critical applications.
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Wide Signal Compatibility: Accepts both current and voltage input types, making it versatile for numerous sensor types.
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Seamless Controller Integration: Designed for plug-and-play compatibility with Modicon controllers using the TM2 expansion bus.
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Compact Form Factor: Its narrow 30 mm width is ideal for space-constrained control panels and DIN rail environments.
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No Additional Power Required: Operates using the backplane supply from the controller, simplifying system design.
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Electrical Isolation: Galvanic isolation between analog channels and system logic increases safety and reliability.
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Field-Proven Robustness: Engineered to meet industrial operating temperature and vibration conditions.
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Scalable and Cost-Effective: Allows analog input capability to be added only when needed, reducing up-front investment.
常见问题 (FAQ)
1. What is the primary function / the TM2AMI2HT module?
It provides two high-resolution analog input channels to a compatible Modicon PLC for reading voltage or current signals from sensors.
2. Can I use both voltage and current inputs at the same time?
No, the module should be configured for either voltage or current inputs, not both simultaneously.
3. What controllers support this module?
It is compatible with Modicon M221, M238, M241, and M251 controllers.
4. Does it require external power?
No, it draws power directly through the TM2 backplane bus from the main controller.
5. What is the resolution / the analog signal reading?
It features a 14-bit resolution, /fering high accuracy.
6. Is there isolation between channels?
Yes, the module has galvanic isolation to protect internal logic from electrical noise or damage.
7. Can this module be used in outdoor environments?
It is designed for indoor use in industrial cabinets, with an IP20 protection rating.
8. What is the conversion time per channel?
Each analog channel has a 2 ms conversion time, allowing near real-time response.
9. Is this module programmable on its own?
No, it is an expansion module and must be connected to a compatible controller to function.
10. Which s/tware is used for configuration?
Configuration is done using EcoStruxure Machine Expert – Basic (formerly SoMachine Basic).
Related 型号s from the Same TM2 Series
| 型号 | 描述 | I/O Type | Channels | Signal Type |
|---|---|---|---|---|
| TM2AI4HT | 4-channel Analog Input Module | Analog Input | 4 | Voltage / Current |
| TM2ARI8HT | 8-channel Analog Input Module | Analog Input | 8 | Current (4–20 mA only) |
| TM2DRA16RT | 16-channel Relay Output Module | Digital Output | 16 | Relay |
| TM2DQ16TK | 16-channel Transistor Output Module | Digital Output | 16 | Transistor (sink) |
| TM2DIO16DTK | 16-channel Mixed I/O Module | Mixed I/O | 8 DI / 8 DO | Digital (Transistor) |
| TM2DDO32TK | 32-channel Transistor Output Module | Digital Output | 32 | Transistor (sink) |
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