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Siemens S7-1200 SM1231 Analog AI 8xRTD x 16 bits
SKU: 6ES7231-5PF32-0XB0
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Short Description
Pricing available on request
Description:
This module is designed for precise temperature acquisition using RTDs in SIMATIC S7-1200 systems.
It supports 8 analog inputs, making it ideal for multi-point temperature monitoring in HVAC, crane motor banks, or elevator shaft zones.
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Specifications:
Electrical & Power:
Supply Voltage: 24 V DC.
Backplane Bus Current: 80 mA (typical).
Power Loss: 1.5 W.
Input Protection: ±35 V destruction limit.
Analog Input Capabilities:
Channels: 8 RTD inputs.
Supported RTD Types:
Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000.
Ni100, Ni120, Ni200, Ni500, Ni1000.
Cu10, Cu50, Cu100, LG-Ni1000.
Resistance Ranges: 0–150 Ω, 0–300 Ω, 0–600 Ω.
Resolution: 15-bit + sign.
Measurement Principle: Integrating.
Temperature Units: Selectable (°C or °F).
Accuracy & Reliability:
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 & Status:
Wire Break Detection.
Supply Voltage Monitoring.
Diagnostic Alarms.
LED Indicators: Input status & maintenance.
Mechanical & Environmental:
Dimensions (W x H x D): 70 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.