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Siemens SIMATIC S7-1500 TM SIWAREX WP521 ST Weighing Module

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ManufacturerSiemens

Part number7MH4980-1AA01

Channels 1

Digital Inputs 3x 24V DC

Digital Outputs 3x 24V DC

Communication 1x RS485, 1x Ethernet

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Single-channel weighing Analog load cell support RS485 and Ethernet interface Integrated into SIMATIC S7-1500 Digital I/O included High resolution measurement

Product description

The Siemens 7MH4980-1AA01 is a single-channel weighing module for the SIMATIC S7-1500 automation system. It is designed for platform or hopper scales utilizing analog load cells or strain gauges with full bridges, supporting a 1-4mV/V signal range. This module integrates seamlessly into the S7-1500 environment, offering features such as 3 digital inputs (DI), 3 digital outputs (DQ), an RS485 interface for Modbus RTU communication, and an Ethernet port for Modbus TCP/IP or SIWATOOL V7.

This weighing module is ideal for applications requiring precise weight measurement in industries such as food and beverage, pharmaceuticals, chemical processing, and logistics. It can be used for batching, filling, and inventory control systems, ensuring accuracy and efficiency in production processes.

Source your Siemens 7MH4980-1AA01 from Stanlo Automation, a trusted veteran-owned distributor. We offer competitive pricing, fast shipping, and expert support to ensure your automation projects stay on track.

Technical specifications

Channels	1
Digital Inputs	3x 24V DC
Digital Outputs	3x 24V DC
Communication	1x RS485, 1x Ethernet
Load Cell Interface	1x LC (1-4mV/V)
Mounting	S7-1500 Rail
Compatibility	SIMATIC S7-1500

Common applications

Platform scales

Hopper scales

Batching systems

Filling systems

Inventory control

Gravimetric level measurement

Compatible systems

SIMATIC S7-1500

Also known as

SIWAREX WP521 ST Siemens Weighing Electronics S7-1500 Weighing Module

Replaces / compatible with

The 7MH4980-1AA01 replaces older SIWAREX modules and is designed as a direct integration component for the SIMATIC S7-1500. It is compatible with analog load cells and strain gauges.

Technical note

Expert tip

Ensure proper shielding and grounding of load cell connections to maintain signal integrity and prevent interference, especially in noisy industrial environments.

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Frequently asked questions

What type of scales can the Siemens 7MH4980-1AA01 weighing module be used with?

The Siemens 7MH4980-1AA01 is designed for single-platform or hopper scales that use analog load cells or strain gauges with full bridges. It's ideal for non-automatic weighing applications within the SIMATIC S7-1500 automation environment.