Siemens 6ES7531-7KF00-0AB0 S7-1500 Analog Input Module

Siemens 6ES7531-7KF00-0AB0 S7-1500 Analog Input Module

The 6ES7531-7KF00-0AB0 is a SIMATIC S7-1500 analog input module. This Standard (ST) module measures voltage, current, temperature, and resistance signals. It offers high accuracy and flexible diagnostics for process control.

Key Technical Specifications

• Brand & Model: Siemens 6ES7531-7KF00-0AB0 (AI 8xU/I/RTD/TC ST)
• Number of Channels: 8 inputs, in one group of 8
• Signal Types: Voltage, Current, RTD (4 ch), Thermocouple
• Resolution: 16-bit (including sign)
• Accuracy: 0.3% operational error limit
• Supply Voltage: 24V DC (20.4V - 28.8V range)
• Power Loss: Typical 2.7 W

Measurement Ranges & Features

• Voltage Ranges: ±10V, ±5V, ±1V, 1-5V, ±500mV, ±250mV, ±50mV.
• Current Ranges: 0-20mA, 4-20mA, ±20mA.
• RTD Types: Pt100, Pt200, Pt500, Pt1000, Ni100, Ni1000, LG-Ni1000.
• Thermocouple Types: B, E, J, K, N, R, S, T.
• Key Features: Wire-break detection, limit value alarms, internal/external temperature compensation, shield terminal.
• Cable Length: Up to 800m for voltage/current, 200m for RTD, 50m for TC.

Physical Data & FAQs

• Dimensions: 35 mm x 147 mm x 129 mm (W x H x D)
• Weight: Approximately 310 grams
• Operating Temperature: 0°C to +60°C (horizontal mount)
• Q: What is the conversion time?
  A: It depends on the integration time setting: 2.5, 16.67, 20, or 100 ms.
• Q: Can it power 2-wire transmitters?
  A: Yes, it provides a 24V sensor supply with up to 20mA per channel.
• Q: Is calibration required?
  A> Calibration can be performed in RUN mode via software to maintain long-term accuracy.