Introduction
The Schneider
TM3TM3
Analog I/O Module is a versatile mixed signal expansion unit in the Modicon TM3 I/O family, designed to handle both analog input and output channels within a single, compact module. Perfect for automation systems that require real‑world signal acquisition and actuation in one device, the TM3 Analog I/O Module enables PLC logic to read sensors, control proportional devices, and integrate smoothly with HMIs and control systems.
With broad industrial compatibility, accurate signal conversion, and seamless TM3 ecosystem integration, this analog I/O expansion module enhances functionality while minimizing footprint — an ideal choice for machine builders, OEM panels, and distributed control applications.
Technical Specifications
| Specification | Details |
|---|
| Model Series | TM3TM3 Analog I/O Module |
| Module Type | Mixed Analog I/O Expansion |
| Compatible Controllers | Modicon TM3 Logic Controllers |
| Analog Inputs | 2 (voltage/current) |
| Analog Outputs | 2 (voltage/current) |
| Input Signal Types | 0–10 V DC, 0–20 mA / 4–20 mA |
| Output Signal Types | 0–10 V DC, 0–20 mA / 4–20 mA |
| Input Resolution | 12‑bit |
| Output Resolution | 12‑bit |
| Input Impedance | High (voltage), low (current) |
| Sampling/Update Time | ≤ 10 ms |
| Supply Voltage | 24 V DC |
| Connection Type | Removable screw or spring‑clamp terminals |
| Mounting | DIN‑rail or symmetrical rail mount |
| Protection Rating | IP20 |
| Operating Temperature | 0 °C to 60 °C |
| Storage Temperature | −25 °C to 70 °C |
| Relative Humidity | 5 %–95 % non‑condensing |
| Dimensions (approx.) | ~90 mm × 45 mm × 70 mm |
| Weight | ~110 g |
Applications
The TM3 Analog I/O Module is ideal in automation applications that require both signal acquisition and proportional control:
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Reading sensor feedback (temperature, pressure, flow, level)
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PID control loops in machine and process automation
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Driving analog actuators, valves, and variable devices
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HMI/SCADA integration for real‑time process visualization
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Factory data acquisition and trending
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Mixed signal automation in OEM equipment
By supporting both inputs and outputs, it simplifies wiring and reduces the need for multiple discrete modules.
Advantages
Dual‑Function Capability
Provides both analog inputs and outputs in a single module — saving space and reducing panel wiring.
Wide Input/Output Compatibility
Supports voltage and current signal types accommodating a range of industrial sensors and actuators.
High Resolution and Accuracy
12‑bit resolution ensures fine granularity for precision monitoring and control.
Responsive Performance
Fast sampling and update times support proportional control loops and real‑time automation tasks.
Industrial‑Grade Reliability
Designed for use in automation environments, with robust protection and broad tolerance ranges.
Seamless TM3 Integration
Plug‑and‑play compatibility with Modicon TM3 controllers and I/O expansion architecture.
Technical FAQs
1. What does the TM3 Analog I/O Module do?
It combines analog input and output channels to read real‑world process variables and control analog actuators.
2. How many analog input channels are available?
It provides two analog input channels.
3. How many analog output channels does it support?
It supports two analog output channels.
4. What signal types are supported?
Both voltage (0–10 V) and current (0–20 mA / 4–20 mA) signal types are supported for inputs and outputs.
5. What resolution does the module use?
The module operates with 12‑bit resolution for both input and output channels.
6. What supply voltage is required?
It operates on a 24 V DC supply.
7. What is the typical sampling or update time?
Signal sampling and update times are approximately 10 ms per active channel.
8. How are field signals connected?
Signals are connected using removable screw or spring‑clamp terminal blocks.
9. Can the module be mounted on DIN‑rail?
Yes, standard DIN‑rail or symmetrical rail mounting is supported.
10. Is it suitable for harsh industrial environments?
Yes, it is designed to handle industrial temperature and humidity ranges with IP20 protection.
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