Siemens Simatic S7-1500 Analog input module, 16 bit Part number 6ES7531-7KF00-0AB0

The 6ES7531-7KF00-0AB0 is a SIMATIC S7-1500 analog input module AI 8xU/I/RTD/TC ST with 16-bit resolution and 0.3% accuracy. This versatile 8-channel module supports voltage, current, RTD, and thermocouple measurements with 4 dedicated channels for RTD measurement, 10V common mode voltage, comprehensive diagnostics, and hardware interrupt capabilities for demanding industrial measurement applications.

Key Features

• Input Channels: 8 analog inputs supporting voltage, current, RTD, and thermocouple measurements
• RTD Channels: 4 dedicated channels optimized for RTD temperature measurement
• Resolution: 16-bit resolution with 0.3% accuracy
• Measurement Types: Voltage (±10V, ±5V, ±2.5V, ±1V, 1-5V), Current (±20mA, 4-20mA), RTD (Pt100, Pt1000, Ni100, Ni1000), Thermocouple (Type J, K, E, R, S, T, B, N, C)
• Common Mode Voltage: 10V DC maximum
• Diagnostics: Wire break detection, short circuit monitoring, overflow/underflow detection
• Hardware Interrupts: Configurable limit monitoring with interrupt generation
• Integration Time: Parameterizable for optimal noise rejection
• Operating Temperature: -30°C to +60°C (horizontal), -30°C to +40°C (vertical)
• Dimensions: 35mm W x 147mm H x 129mm D
• Weight: 0.413 kg

Technical Specifications

• Accuracy: 0.3% operational error limit
• Resolution: 16-bit including sign
• Channel Grouping: 8 channels in groups of 8
• RTD Measurement: 4 channels with 2-wire, 3-wire, and 4-wire RTD support
• Current Measurement: 4-20mA, ±20mA ranges
• Voltage Measurement: ±10V, ±5V, ±2.5V, ±1V, 1-5V ranges
• Thermocouple Types: J, K, E, R, S, T, B, N, C with cold junction compensation
• Isolation: Channel-to-channel and channel-to-backplane isolation
• Cable Length: Up to 200m (depends on measurement type)
• Power Consumption: From backplane bus

Applications

The AI 8xU/I/RTD/TC ST module is ideal for process control applications requiring multi-type analog signal acquisition. Perfect for temperature monitoring with RTDs and thermocouples, process variable measurement with 4-20mA signals, and voltage monitoring in industrial automation systems where diverse measurement requirements exist.

Measurement Capabilities

• RTD Temperature Sensors: Pt100, Pt1000, Ni100, Ni1000 with 2-wire, 3-wire, and 4-wire configurations
• Thermocouple Types: J, K, E, R, S, T, B, N, C with integrated cold junction compensation
• Current Loops: 4-20mA process signals and ±20mA bipolar measurements
• Voltage Signals: Industrial standard voltage ranges from ±1V to ±10V
• Diagnostics: Comprehensive error detection including wire break, short circuit, and range violations

Configuration Options

• STEP 7 (TIA Portal): Compatible with current versions
• GSD File Support: PROFINET IO and PROFIBUS DP compatible
• Parameter Assignment: Configurable measurement types per channel
• Diagnostic Settings: Individually configurable diagnostic functions
• Hardware Interrupts: Limit monitoring with configurable thresholds

Product Information

• Article Number: 6ES7531-7KF00-0AB0
• Net Weight: 0.413 kg
• Packaging Dimensions: 16.10 x 19.30 x 5.00 cm
• EAN: 4025515079514
• UPC: 887621139148
• Country of Origin: Germany
• Product Group: 4501

Compliance & Environmental

• RoHS Compliance: Yes (since 25.02.2013)
• WEEE Take-Back: Yes (2012/19/EU)
• REACH Article 33: Contains lead, lead monoxide, silicic acid lead salt, 6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol, Bisphenol A, and Dicyclohexyl phthalate >0.1% w/w
• Export Control: AL: N / ECCN: 9N9999
• Product Lifecycle: PM300:Active Product

Download existing graphical data for this product:

• Equipment Manual - AI 8xU/I/RTD/TC ST (English)
• Equipment Manual - AI 8xU/I/RTD/TC ST (German)
• Equipment Manual - AI 8xU/I/RTD/TC ST (Italian)
• Technical Datasheet

Additional Resources

• SM 531 Analog Input Modules Product Family
• Siemens Industry Mall