Why the TM3AI2H Belongs on Your Shortlist
In today’s competitive industrial landscape, squeezing every ounce of efficiency from your automation system is not just smart—it’s essential. The Schneider TM3AI2H analog input module delivers the high-resolution data acquisition you need to optimize processes and reduce waste. With two software-configurable channels and 16-bit resolution, this module turns raw signals into actionable insights.
As a Modicon TM3 expansion module, the TM3AI2H integrates seamlessly with popular Schneider PLC platforms, including the M221, M241, M251, and M262. This means you can upgrade your existing control system without a complete overhaul, protecting your investment and minimizing disruption.
Key Specifications That Drive Performance
The TM3AI2H supports a range of signal types: ±10 Vdc, 0-10 Vdc, 0-20 mA, and 4-20 mA. Each channel is independently configurable via software, giving you unmatched flexibility for mixed-signal applications. The 16-bit resolution (15 bits plus sign) ensures precise measurement of even the smallest changes, while accuracy of ±0.1% of full scale at 25 °C guarantees reliable data.
Electrical isolation is a critical feature for industrial environments. The TM3AI2H provides 500 V AC isolation between analog input and internal logic, and 1500 V AC between input and supply. This protects your PLC from voltage spikes and ground loops, enhancing system reliability and uptime.
Technical Specifications at a Glance
| Parameter | Value |
|---|---|
| Channels | 2 |
| Signal Types | ±10 Vdc, 0-10 Vdc, 0-20 mA, 4-20 mA |
| Resolution | 16 bits (15 bits + sign) |
| Accuracy | ±0.1% of full scale at 25 °C |
| Isolation | 500 V AC (input to logic); 1500 V AC (input to supply) |
| Response Time | Conversion: 1 ms + 1 ms per channel + 1 controller cycle time |
| Supply Voltage | 24 Vdc (via TM3 bus) |
| Operating Temperature | 0…+55 °C |
| Protection Rating | IP20 |
| Dimensions (H×W×D) | 90 × 23.6 × 70 mm |
| Weight | 0.115 kg |
Business Benefits: ROI You Can Measure
Investing in the TM3AI2H pays off through reduced downtime and improved process control. The module’s fast response time—conversion in 1 ms plus 1 ms per channel—enables real-time monitoring and quick adjustments, minimizing scrap and energy waste. With accurate analog input, you can fine-tune your processes to reduce raw material consumption and boost product quality.
Furthermore, the TM3AI2H’s robust diagnostics—channel status, module status, and bus status—allow for proactive maintenance. You can identify issues before they cause unplanned stoppages, saving thousands in lost production. The module’s active lifecycle status (last verified: 2026-09) ensures long-term availability and support.
Integration and Compatibility
The TM3AI2H is designed to work effortlessly with Modicon M221, M241, M251, and M262 controllers. Its removable screw terminal block with 3.81 mm pitch simplifies wiring and maintenance. The module draws 40 mA at 5 V DC and 25 mA at 24 V DC (full load), making it energy-efficient and easy to integrate into existing panels.
Because it communicates via the TM3 bus, installation is plug-and-play. No additional power supply is needed beyond the 24 Vdc bus supply. This reduces wiring complexity and installation time, further lowering your total cost of ownership.
Real-World Applications
In a typical packaging line, the TM3AI2H might monitor pressure and flow sensors to ensure consistent fill volumes. Its high resolution detects subtle variations, allowing the PLC to adjust actuators in real time. This precision reduces product giveaway and improves customer satisfaction.
In HVAC systems, the module can read temperature and humidity transmitters to optimize energy usage. The 4-20 mA input is ideal for long-distance signal transmission, while the 0-10 V option suits local sensors. The isolation protects against electrical noise, ensuring reliable data even in harsh environments.
Frequently Asked Questions
What signal types does the TM3AI2H support?
The module supports ±10 Vdc, 0-10 Vdc, 0-20 mA, and 4-20 mA, configurable per channel via software.
Can I use the TM3AI2H with my existing Modicon PLC?
Yes, it is compatible with Modicon M221, M241, M251, and M262 platforms.
What is the resolution of the TM3AI2H?
It offers 16-bit resolution (15 bits plus sign), ensuring precise measurement.
How does the TM3AI2H handle electrical noise?
It provides 500 V AC isolation between analog input and internal logic, and 1500 V AC between input and supply.
What is the operating temperature range?
The module operates from 0 to +55 °C, suitable for most industrial environments.
Why Buy from Oil AutoTech?
Oil AutoTech specializes in industrial automation spare parts, offering genuine Schneider products with fast shipping and expert support. Our deep inventory ensures you get the TM3AI2H when you need it, minimizing downtime. Trust our team to help you select the right components for your application.
With competitive pricing and a commitment to quality, Oil AutoTech is your reliable partner for automation upgrades. Contact us today to discuss how the TM3AI2H can enhance your control system.
