Schneider TM3AI8 Analog Input Module, Modicon TM3, 8 Inputs 24VDC

The Schneider Electric TM3AI8 is an analog input expansion module for the Modicon TM3 series, designed to add 8 analog input channels to compatible Modicon PLC platforms. It supports multiple input signal types including current (0...20 mA, 4...20 mA) and voltage (0...10 V, -10...10 V) with 12-bit resolution and a conversion time of 1 ms plus 1 ms per channel.

Technical specifications:

• Commercial reference: TM3AI8
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Modicon TM3
• Product type: Analog input module
• Number of analog inputs: 8
• Analog input types: Current 4...20 mA, Current 0...20 mA, Voltage 0...10 V, Voltage -10...10 V
• Resolution: 12 bits (11 bits + sign)
• Conversion time: 1 ms + 1 ms per channel + 1 controller cycle time
• Sampling duration: 1 ms
• Absolute accuracy: +/- 1% of full scale; +/- 0.2% of full scale at 25°C
• Temperature drift: +/- 0.01 %FS/°C
• Repeatability: +/- 0.5 %FS
• Non-linearity: +/- 0.2 %FS
• Rated supply voltage: 24 V DC
• Supply voltage range: 20.4...28.8 V
• Input impedance: 50 Ohm (current), 1 MOhm (voltage)
• Cable type: Shielded twisted-pair cable, max 30 m
• Connection: 10 x 1.5 mm² removable screw terminal block, 3.81 mm pitch
• Isolation: 1500 V AC between inputs and supply; 500 V AC between inputs and internal electronics
• Mounting: DIN rail TH35-15 and TH35-7.5 per IEC 60715, or panel mounting
• Width: 23.6 mm
• Height: 90 mm
• Depth: 70 mm
• Weight: 0.11 kg
• IP protection rating: IP20
• Operating temperature: -10...55°C (horizontal installation), -10...35°C (vertical installation)
• Storage temperature: -25...70°C
• Relative humidity: 10...95%, non-condensing
• Certifications: CE, UKCA, RCM, EAC, cULus, cULus HazLoc
• Standard: IEC 61131-2
• Compatible with: Modicon M221, M241, M251, M262

Features and benefits:

• Supports four analog input signal types for flexible field device integration
• High-precision 12-bit resolution with low non-linearity for accurate process measurements
• Built-in isolation between inputs and power supply protects against electrical interference
• Compact 23.6 mm wide housing for space-efficient control cabinet installation
• LED power indicator for quick status monitoring during commissioning and operation
• Wide operating temperature range and IP20 rating suitable for industrial panel environments

Applications:

• Expanding analog signal capacity in Modicon M221, M241, M251, and M262 PLC systems
• Process control applications requiring temperature, pressure, or flow sensor inputs
• Building automation and energy management systems using 4...20 mA or 0...10 V transducers
• Machine automation panels where multiple analog field signals must be monitored
• Industrial control cabinets requiring DIN rail mounted analog I/O expansion

Compliant with IEC 61131-2. Part of the Schneider Electric Modicon TM3 range.

Also known as: Schneider TM3AI8, Schneider Electric TM3AI8, Modicon TM3 analog input module, TM3 8-channel analog input expansion.