6ES7531-7KF00-0AB0 Siemens - Universal Analog Input
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Siemens 6ES7531-7KF00-0AB0: Universal 8-Channel Analog Input Module
The Siemens 6ES7531-7KF00-0AB0 is a versatile SIMATIC S7-1500 analog input module. It handles voltage, current, RTD, and thermocouple signals with 0.3% accuracy. Perfect for precise temperature and process measurement.
Quick Start Guide
- Mount the module onto your S7-1500 rack.
- Connect sensors using the shielded bracket for noise protection.
- Configure in TIA Portal (V12 or newer).
- Select your measurement type (U/I/RTD/TC) for each channel.
- Enable diagnostics and limit alarms for monitoring.
Detailed Technical Specifications
Product Code: Siemens 6ES7531-7KF00-0AB0 (AI 8xU/I/RTD/TC ST)
Module Type: Analog Input Module, Standard.
Channels: 8 universal channels, in one group of 8.
Supply Voltage: 24V DC (Range: 20.4V to 28.8V).
Resolution: High 16-bit resolution.
Overall Accuracy: Better than ±0.3% across temperature range.
Measurement Types:
— Voltage: ±10V, ±5V, ±1V, ±500mV, ±250mV, ±50mV, 1-5V.
— Current: 0-20mA, 4-20mA, ±20mA.
— RTD: Pt100, Pt200, Pt500, Pt1000, Ni100, Ni1000.
— Thermocouple: Types B, E, J, K, N, R, S, T.
Conversion Time: Selectable: 9ms (fast) to 107ms (high precision).
Diagnostics: Wire-break, underflow/overflow, supply voltage monitoring.
Input Resistance: 10 MΩ for voltage/TC/RTD; 25Ω for current.
Max Cable Length: 800m (Voltage/Current), 200m (RTD), 50m (TC).
Operating Temperature: 0°C to 60°C (horizontal).
Dimensions: 35mm W x 147mm H x 129mm D. Weight: ~310g.
Frequently Asked Questions (FAQ)
What sensors can I connect to this module?
You can connect almost any common industrial analog sensor: 4-20mA transmitters, ±10V signals, PT100 temperature probes, and various thermocouples like Type K or J.
How accurate is it for temperature measurement?
For a Pt100 sensor in "climate" mode, the basic accuracy at 25°C is excellent, around ±0.2°C. Over the full temperature range, expect within ±0.5°C.
What is "wire-break" detection and how does it work?
For 4-20mA loops and 1-5V signals, the module can detect if the sensor wire is broken. It triggers a diagnostic alarm if the signal falls below a very low threshold (near 0 mA or V).
Can I change settings while the PLC is running?
Yes. This module supports "Configuration in RUN" (CiR). You can reparameterize channels, like changing a limit alarm value, without stopping your process.
Do I need external components for thermocouple measurement?
The module has internal temperature compensation for the cold junction. For best accuracy, you can also connect an external RTD to a dedicated reference channel for more precise compensation.
Warranty & Global Shipping
This module is covered by a comprehensive 12-month warranty. We deliver worldwide swiftly via FedEx, UPS, and DHL.
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Original Source: https://www.ubestplc.com/
Contact: sales@ubestplc.com Phone: +86 180 3000 5825