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Siemens S7-1200 SM1231 Analog AI 4xRTD x 16 bits
SKU: 6ES7231-5PD32-0XB0
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Short Description
Pricing available on request
Description:
This module supports 4 RTD inputs with high-resolution 16-bit acquisition.
It’s tailored for precise temperature measurement using sensors like Pt100, Pt1000, Ni100, Cu50, and LG-Ni1000.
Ideal for HVAC, process control, and temperature-critical automation systems.
Buy currently uses Select Automation shop pricing and checkout.
Specifications:
Electrical Characteristics:
Supply Voltage: 24 V DC.
Backplane Bus Current: 80 mA (typical).
Power Loss: 1.5 W (typical).
Destruction Limits: ±35 V input protection.
Analog Inputs:
Channels: 4 RTD inputs.
Supported RTD Types:
Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000.
Ni100, Ni120, Ni200, Ni500, Ni1000.
Cu10, Cu50, Cu100, LG-Ni1000.
Supported Resistance Ranges: 0–150 Ω, 0–300 Ω, 0–600 Ω.
Resolution: 15-bit + sign.
Measurement Principle: Integrating.
Cycle Time: Fast acquisition with high repeat accuracy.
Temperature Units: Selectable (°C or °F).
Accuracy & Diagnostics:
Basic Error (25 °C): ±0.1%.
Extended Error (up to 55 °C): ±0.2%.
Repeat Accuracy: ±0.05%.
Interference Suppression:
85 dB at 50/60/400 Hz.
120 dB common-mode rejection.
Diagnostics:
Wire break detection.
Supply voltage monitoring.
Diagnostic alarms.
LEDs for input status and maintenance.
Mechanical & Environmental:
Dimensions (W x H x D): 45 x 100 x 75 mm.
Mounting: DIN rail.
Protection Rating: IP20.
Operating Temp: –20 to +60 °C.
Storage Temp: –40 to +70 °C.
Humidity: Up to 95% (non-condensing).
Shock/Vibration: IEC 60068 compliant.
Compliance & Approvals:
CE, UL, CSA, FM, RCM, KC.
Marine: DNV, LRS, BV, RMRS, RINA, CCS.
ATEX, IECEx.
Environmental Product Declaration (EPD).
Global Warming Potential: 43.1 kg CO₂ eq.