SIEMENS 7MH4980-1AA01

Siemens SIWAREX WP521 ST Weighing Module for S7-1500

Description

The Siemens SIWAREX WP521 ST is a compact and powerful weighing module designed for seamless integration into the SIMATIC S7-1500 automation system. This single-channel module facilitates high-precision weighing tasks such as dosing, filling, and check-weighing directly within the PLC environment. It supports connection to standard strain gauge load cells and offers extensive diagnostic functions for reliable operation. With its straightforward configuration in the TIA Portal, the 7MH4980-1AA01 is an ideal solution for upgrading or implementing advanced weighing applications.

Specifications

• Manufacturer: Siemens
• Product Line: SIMATIC S7-1500
• Model: SIWAREX WP521 ST
• Part Number: 7MH4980-1AA01
• Power Supply: 24V DC
• Digital Inputs: 3 x 24V DC
• Digital Outputs: 4 x 24V DC, 0.5A
• Load Cell Interface: +/- 4 mV/V
• Operating Temperature: 0 to 60 deg C (Horizontal)

Label Info

• FS (Firmware State): 02
• S/N: S LBJ4410339
• Approvals: CE, UL, ATEX, IECEx

Application

This module is suitable for a wide range of industrial weighing applications, including batching systems, level monitoring by weight, conveyor scales, and material dosing systems in the food and beverage, chemical, and manufacturing industries.

Country of Origin

Made in Germany

CO2 Impact

By choosing this pre-owned module, you help avoid the production of a new one, saving an estimated 12 kg of CO2. This is equivalent to the emissions of a 60 km car journey.

Availability

This unit is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What TIA Portal version is required to configure the SIWAREX WP521 ST?

To configure this module, you typically need TIA Portal V12 or higher. For full functionality and access to the latest features, it is recommended to use the version specified in the module’s support documentation, usually V13 SP1 or newer.

Can this module be used in hazardous areas?

Yes, the module has certifications for use in hazardous locations, as indicated by the ATEX (KEMA 08ATEX0002 X) and IECEx (IECEx DEK 14.0027X) markings. It is approved for Zone 2 (Gas) environments, specifically II 3G Ex nA IIC T4 Gc.

What calibration methods are supported by the WP521 ST?

The SIWAREX WP521 ST supports several calibration methods, including theoretical calibration without test weights (using load cell data sheets) and practical calibration with test weights for maximum accuracy. All calibration procedures can be managed through the TIA Portal software.

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Last Update: Friday, March 13, 2026