Schneider TM3AM6 Mixed Analog I/O Module

Description

The Schneider Electric TM3AM6 is a mixed analog I/O module designed for industrial automation systems that demand precise measurement and smooth control of continuous process variables. It expands the capabilities of Modicon M221, M241, M251, and M262 PLCs with four analog inputs and two analog outputs. Moreover, its compact housing and DIN-rail form factor allow engineers to add advanced analog functionality without increasing panel complexity. The module integrates seamlessly with EcoStruxure Machine Expert, ensuring straightforward configuration and reliable long-term performance in demanding factory environments.

Key Benefits

The TM3AM6 delivers consistent accuracy and fast conversion for applications that rely on stable analog signals. In addition, its galvanic isolation enhances safety and protects the controller from electrical disturbances. Engineers appreciate its flexible signal support, which includes both voltage and current ranges. Therefore, the module works well for monitoring sensors and driving analog actuators in machine automation systems. Its robust EMC immunity and industrial certifications also ensure dependable operation in electrically noisy environments.

Technical Specifications

Analog Inputs

• 4 channels

• Voltage ranges: 0–10 V, –10–10 V

• Current ranges: 0–20 mA, 4–20 mA

• Resolution: 12 bits (11 bits + sign)

• Input impedance: ≥1 MΩ (voltage), ≤50 Ω (current)

• Accuracy: ±0.1% FS at 25 °C; ±1% over full range

• Conversion time: 1 ms + 1 ms/channel + controller cycle

Analog Outputs

• 2 channels

• Voltage: 0–10 V

• Current: 0–20 mA, 4–20 mA

• Load: ≥1 kΩ (voltage), ≤500 Ω (current)

• Resolution: 12 bits (11 bits + sign)

Electrical

• Supply: 24 VDC (20.4–28.8 VDC)

• Consumption: approx. 30 mA at 24 VDC (external supply)

• Isolation: galvanic isolation between inputs, outputs, and logic

Environmental

• Operating temperature: 0–55 °C

• Storage temperature: –25–70 °C

• IP20 protection

• Mounting: DIN-rail (TH35-7.5 / TH35-15)

Mechanical

• Width: 23.6 mm

• Depth: 70 mm

• Height: 90 mm

• Weight: 0.11 kg

Typical Applications

The TM3AM6 suits systems that require measurement and closed-loop control of continuous variables. For instance, engineers often use it for temperature feedback in thermal processes or flow regulation in pumping systems. It also fits well in machinery where pressure monitoring and actuator control must operate in parallel. In addition, it integrates effectively into multi-axis equipment where both sensor signal conditioning and analog drive commands are required.

Support & Reliability

Schneider Electric designed the TM3AM6 to operate continuously under industrial vibration, electrical noise, and temperature fluctuations. Moreover, the module follows IEC 61131-2 standards, which reinforces its long-term reliability. Engineers value the removable screw terminals, as they simplify maintenance and reduce downtime during replacement or system upgrades.

FAQ

Q1: What PLCs are compatible with the TM3AM6?
It works with Modicon M221, M241, M251, and M262 controllers.

Q2: Can the module handle both voltage and current signals?
Yes, it supports voltage ranges from –10–10 V and 0–10 V, as well as current ranges from 0–20 mA and 4–20 mA.

Q3: Does the TM3AM6 include galvanic isolation?
Yes, it isolates inputs, outputs, and logic to protect against electrical noise and grounding issues.

Q4: What software is used for configuration?
You can configure the module using EcoStruxure Machine Expert.

Q5: Is the module suitable for precise control applications?
Yes, its fast conversion time and 12-bit resolution make it suitable for stable and responsive analog control loops.