Schneider Electric TM3AM6 Modicon TM3 4‑AI / 2‑AO Analog I/O Expansion Module

Product Overview

The Schneider Electric TM3AM6 is a Modicon TM3 series mixed analog I/O expansion module for Modicon M221, M241, M251 and M262 programmable logic controllers. It provides 4 configurable analog input channels and 2 configurable analog output channels, supporting common industrial voltage and current signal ranges. This module connects to the PLC via the TM3 backplane bus, extends analog processing capacity for machine‑level automation, and is configured through EcoStruxure Machine Expert software.

Series

Modicon TM3 Expansion I/O Series. This modular I/O system offers digital, analog and special function expansion modules for Modicon M2xx compact PLC platforms, supporting flexible cabinet layout, DIN‑rail installation and hot‑swap‑free backplane connection for machine automation applications.

Product Features

4 multi‑range analog input channels, configurable for voltage (-10…+10 V, 0…10 V) or current (0…20 mA, 4…20 mA) signals
2 multi‑range analog output channels, configurable for voltage (-10…+10 V, 0…10 V) or current (0…20 mA, 4…20 mA) signals
12‑bit conversion resolution (11‑bit plus sign bit), 1 ms typical settling time per channelSchneider …
Screw‑type removable terminal block for field wiring
Backplane bus interface for direct connection to Modicon M2xx PLC CPU or extension chain
Built‑in green power LED for module status indication
Software‑configurable digital filter for input signal noise suppression
Galvanic isolation between field I/O circuits and internal logic
Compact narrow‑width housing for high‑density DIN‑rail cabinet installation
Programming and parameter setting via EcoStruxure Machine Expert software suite

Product Parameters

Item	Value
Part Number	TM3AM6
Analog Inputs	4 channels
Analog Outputs	2 channels
Signal Ranges	‑10…+10 V, 0…10 V, 0‑20 mA, 4‑20 mA
Resolution	12‑bit (11 bit + sign)
Terminal Type	Screw terminal block
Supply Voltage	24 VDC (20.4‑28.8 VDC)
5 V Backplane Consumption	45 mA no‑load, 55 mA full‑load
Max Load Impedance (Voltage Output)	≥1 kΩ
Max Load Impedance (Current Output)	≤300 Ω
Mounting	DIN‑rail TS35‑7.5 / TS35‑15
Dimensions	90 mm H × 23.6 mm W × 70 mm D
Weight	0.11 kg
Operating Temperature	‑10 °C ~ +55 °C (horizontal mounting)
Protection Class	IP20 (cabinet‑only installation)
Compatible CPU	Modicon M221, M241, M251, M262
Software Tool	EcoStruxure Machine Expert
Certifications	CE, UL, cULus, RoHS compliant

Product Specifications

Input overload withstand: 13 V for voltage inputs; 40 mA for current inputsSchneider …
Accuracy: ±0.2 % full‑scale at 25 °C; temperature drift ±0.01 % FS / °C
Isolation: 1500 V AC between field circuit and power; 500 V AC between field and logic side
Conversion cycle: 1 ms settling time plus controller cycle time
Mechanical: Passive cooling, no fan required; cabinet‑mount only
Wiring recommendation: Shielded twisted‑pair cable for analog field signals

Function

Collect analog field signals from transmitters, sensors and measuring instruments
Convert physical analog signals into digital values for PLC logic processing
Generate configurable analog voltage / current output signals to drive valves, actuators and indicators
Suppress field‑side signal noise via software‑selectable input filtering
Realize bidirectional data exchange with Modicon M2xx PLC over TM3 backplane bus
Provide power status diagnostic indication via front‑panel LED

Purpose

Expand analog input and output capacity of Modicon M2xx series PLCs; acquire field process analog signals and output control analog signals; serve as standard analog I/O hardware for machine‑automation control cabinets.