6ES7531-7QD00-0AB0 S7-1500 AI 4xU/I/RTD/TC ST 16-bit | Siemens

The Original New Siemens 6ES7531-7QD00-0AB0 SIMATIC S7-1500 Analog Input Module is a high-precision, multi-function analog input module for the S7-1500 and ET 200MP I/O systems. Part of the SIMATIC S7-1500 family, this Standard (ST) module provides 4 universal input channels configurable for voltage, current, resistance (RTD), and thermocouple (TC) signals, enabling flexible integration of a wide range of sensors and transmitters. With 16-bit resolution, ±0.3% accuracy, and integrated diagnostics, it delivers reliable signal acquisition for demanding process and machine automation applications. The module includes a push-in front connector, infeed element, shield bracket, and shield terminal, simplifying installation and reducing wiring time.

Core Engineering Highlights:
4 universal analog inputs (voltage/current/RTD/thermocouple) | 16-bit resolution | ±0.3% accuracy | 4 channels configurable individually | 2 channels for RTD measurement | 10V common mode voltage | Diagnostics and hardware interrupts | 24V DC power supply | IP20 protection | 25mm width | Push-in front connector included

Key Features:

• Original New Siemens 6ES7531-7QD00-0AB0 module

• 4 universal analog input channels — voltage, current, RTD, or thermocouple per channel

• 16-bit resolution including sign for high-precision measurement

• ±0.3% accuracy over full temperature range

• Voltage input ranges: ±10V, ±5V, ±2.5V, ±1V, ±500mV, ±250mV, ±80mV, ±50mV, 1-5V

• Current input ranges: 0-20mA, 4-20mA, ±20mA

• RTD sensor support: Pt100, Pt200, Pt500, Pt1000, Ni100, Ni1000, LG-Ni1000

• Thermocouple types: B, C, E, J, K, L, N, R, S, T, U

• 2 channels can be used for RTD measurement

• Channel diagnostics: wire break, short-circuit, overrange, underrange

• Hardware interrupts for real-time event handling

• I&M data support (I&M0 to I&M3)

• 24V encoder supply with short-circuit protection, 20mA per channel (47mA <10s)

• 24V DC power supply with reverse polarity protection

• 25mm width for space-saving mounting

• Push-in front connector, infeed element, shield bracket, and shield terminal included

• IP20 protection for control cabinet installation

• Configurable in RUN (reparameterization and calibration)

• Engineering via TIA Portal V13 / STEP 7 V5.5 SP3 or higher

Applications:

• High-precision analog signal acquisition from sensors and transmitters

• Process control and monitoring (pressure, flow, level, temperature)

• Temperature measurement with RTDs and thermocouples

• Voltage and current signal measurement from industrial transducers

• Machine automation and factory automation systems

• OEM equipment requiring versatile analog input capability

• S7-1500 and ET 200MP I/O system expansion

Technical Specifications:

Power Supply:

Analog Inputs:

Voltage Input Ranges:

Current Input Ranges:

Encoder Supply:

Physical & Environmental:

Engineering & Configuration:

System Compatibility:

• Siemens SIMATIC S7-1500 controllers (all variants)

• ET 200MP distributed I/O system

• SIMATIC S7-1200 controllers (via PROFINET)

• TIA Portal engineering framework (V13 or higher)

• STEP 7 V5.5 SP3 or higher

• PROFINET and PROFIBUS networks

Typical System Architecture:
S7-1500 CPU (e.g., CPU 1511-1 PN) / ET 200MP Interface Module
↓
6ES7531-7QD00-0AB0 Analog Input Module (4 channels, 25mm width)
│
├── Channel 1: Voltage / Current / RTD / Thermocouple (configurable)
├── Channel 2: Voltage / Current / RTD / Thermocouple (configurable)
├── Channel 3: Voltage / Current / Thermocouple (configurable)
├── Channel 4: Voltage / Current / Thermocouple (configurable)
│
↓
Field Devices (Pressure Transmitters, RTD Sensors, Thermocouples, 4-20mA Loops)
↓
TIA Portal Engineering (STEP 7 Professional)

Related Products:

• 6ES7531-7NF00-0AB0 – AI 8xU/I/RTD/TC HF (8-channel high-feature version)

• 6ES7532-5HD00-0AB0 – AQ 4xU/I ST (4-channel analog output module)

• 6ES7531-7KF00-0AB0 – AI 8xU/I (8-channel voltage/current module)

• 6ES7590-0AA00-0AA0 – S7-1500 mounting rail (required for S7-1500 mounting)

• 6ES7590-5AA00-0AA0 – Shield connector set for S7-1500 modules

• 6ES7590-5BA00-0AA0 – Shield connector set for analog modules

• 6ES7954-8LC03-0AA0 – 4MB SIMATIC Memory Card for S7-1500

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. Siemens, SIMATIC, S7-1500, ET 200MP, and TIA Portal are trademarks of Siemens AG.