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Product description

Siemens 6ES7531-7QD00-0AB0 is a SIMATIC S7-1500 analogue input module, type AI 4xU/I/RTD/TC ST, for machine and plant controllers that must acquire several types of process signal in one compact module. Siemens specifies 4 analogue inputs in one channel group, 16-bit resolution and 0.3 % accuracy. The module can therefore handle voltage, current, resistance, resistance-thermometer and thermocouple measurements without requiring a separate input module for every signal type. Supported voltage ranges include 1 to 5 V, ±1 V, ±2.5 V, ±5 V and ±10 V. Current ranges include 0 to 20 mA, ±20 mA and 4 to 20 mA. There are 2 channels for RTD measurements, while thermocouples can use all 4 channels. Siemens also specifies external temperature compensation by RTD, wire-break monitoring for applicable ranges, diagnostics and hardware interrupts. The module uses a 24 V DC supply, draws a maximum of 165 mA at 19.2 V and has typical power dissipation of 2.3 W. Permitted cable lengths are 800 m for U/I, 200 m for R/RTD and 50 m for TC, important when comparing the module with existing field wiring. At 25 mm wide, 147 mm high and 129 mm deep, Siemens 6ES7531-7QD00-0AB0 fits S7-1500 installations that require this exact AI-4xU/I/RTD/TC-ST module for replacement or expansion. Siemens 6ES7531-7QD00-0AB0 is therefore a specifically identifiable S7-1500 spare part.

Siemens 6ES7531-7QD00-0AB0

Specifications

Manufacturer Siemens
Manufacturer/order/identification number 6ES7531-7QD00-0AB0
Product series SIMATIC S7-1500
Module AI 4xU/I/RTD/TC ST
Article number 6ES7531-7QD00-0AB0
Analogue inputs 4 channels in one channel group
RTD measurement 2 channels for resistance thermometers
Thermocouple measurement 4 channels
Resolution 16 bit including sign
Accuracy 0.3 % relative to the input range
Supply 24 V DC
Current consumption max. 165 mA at 19.2 V supply
Power dissipation typ. 2.3 W
Voltage ranges 1 to 5 V, ±1 V, ±2.5 V, ±5 V, ±10 V
Current ranges 0 to 20 mA, ±20 mA, 4 to 20 mA
Diagnostic functions Supply monitoring, PWR LED and wire-break monitoring
Cable length max. 800 m for U/I, 200 m for R/RTD, 50 m for TC
Dimensions 25 x 147 x 129 mm
Control cabinet with PLC modules and automation components
Machine downtime in a production environment

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Product safety

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FAQ

Frequently asked questions

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Is there a warranty?

Yes. We provide a 14-day functional warranty for used items. The component must be functional on arrival, and the warranty applies only while the warranty seal remains undamaged. If a fault occurs within 14 calendar days, please contact us in writing. Depending on availability, we will either provide a replacement or refund the full purchase price after the item has been returned. Further details are set out in the terms and conditions supplied with our quotation.

How quickly do you ship, and which shipping options are available?

We normally dispatch available items immediately and, in many cases, on the same working day. For urgent requirements or machine downtime, we will identify the fastest suitable option and can confirm a specific delivery window on request. Express shipping and collection from our premises are also possible by arrangement. We ship worldwide using reliable parcel and freight carriers; freight shipments may require additional preparation to ensure safe delivery.

Is there a guarantee?

Yes, we provide a 14-day functional guarantee for used items. This means the component must be operational when received.

Please note that the guarantee only applies when the warranty seal is undamaged.

If a defect occurs within 14 calendar days, please contact us in writing. Subject to availability, we will provide a replacement or refund the full purchase price after return.

Further details are provided in the terms and conditions supplied with your quotation.

How quickly do you dispatch and which shipping options are available?

We generally dispatch immediately - in many cases on the same working day. For particularly urgent requirements or machine downtime, we find a suitable solution as quickly as possible and provide a specific delivery window on request.

Express shipping or collection from our premises is also possible, depending on the situation. State your requirements during the ordering process or contact us directly.

We ship worldwide and work with reliable shipping partners, from parcel services to freight forwarding. Freight shipments normally require some preparation so the goods arrive safely and undamaged.

Which payment methods are available?

Payment is normally made by bank transfer against invoice. Payment is due within 10 calendar days of receiving the goods.

As a rule, we offer purchase on account for all customers. In individual cases, such as new customers or particularly high-value components, we may agree advance payment. This decision is made individually and communicated transparently.

Can we return items if they were ordered incorrectly?

Because we sell exclusively to business customers (B2B), there is no general right of return and no consumer right of withdrawal.

Please note that returns of functioning goods are generally excluded. In justified exceptional cases, we can assess an individual solution, but this is not the standard procedure.

Is there a discount when ordering several items?

For larger order quantities or several items of one type, we can offer individual discounts.

Simply send us a quick enquiry - we check availability and will gladly prepare a tailored quotation with quantity pricing.

Do you also purchase industrial spare parts?

Yes, we also purchase automation components, such as frequency inverters, PLC assemblies, panels, servo motors and CPUs. Components from Siemens, Lenze, Schneider Electric, Control Techniques or Heidenhain are especially sought after, and other brands are also possible.

The process is straightforward: email us an inventory list or overview photos at info@reha-industriekomponenten.de. We calculate a market-based purchase price and send you an offer.

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