Siemens 7MH4950-2AA01

The Siemens 7MH4950-2AA01 is a high-performance SIWAREX U series weighing electronics module designed for seamless integration with Siemens S7-300 PLC systems and distributed ET 200M I/O stations.

As a long-term authorized distributor of Siemens industrial automation components, Floating Light Automation can offer fast delivery and discount prices.

Product Advantages

When it comes to industrial weighing automation, precision and reliability are non-negotiable requirements. The Siemens 7MH4950-2AA01 was developed to meet these high standards, integrating all core functions of weight signal processing into a compact 35mm wide SIMATIC S7-300 compatible module, eliminating the need for separate weighing controllers and simplifying system architecture.

This native integration enables direct communication with the PLC, reducing signal transmission delays and eliminating compatibility issues between third-party devices.

The 7MH4950-2AA01 supports connection of up to 4 load cells with a rated output of 0.2mV/V to 5mV/V, with a 24-bit analog-to-digital converter that delivers a measurement accuracy of up to 0.01% full scale.

It supports both static and dynamic weighing modes, with built-in digital filtering to suppress interference from mechanical vibration and electrical noise common in industrial environments.

The module also includes automatic zero tracking, temperature drift compensation, and weight calibration functions, which ensures long-term measurement stability even in harsh operating conditions with temperature variations from -20°C to 60°C.

Key Technical Specifications

Our Supply & Stock Guarantee

As a leading industrial automation components distributor based in Asia with global distribution capabilities, Floating Light Automation maintains a long-term strategic stock partnership with Siemens authorized component warehouses.

We currently hold over 120 units of 7MH4950-2AA01 in our mainland China and Singapore warehouses, which allows us to ship within 24 hours for orders under 20 units, and fulfill bulk orders up to 100 units within 7 working days.

All products we sell are 100% original new from Siemens factory, with complete factory traceability codes and official inspection certificates.

We provide 12 months of global warranty for every 7MH4950-2AA01 unit, along with free technical support for installation and configuration.

For large-scale industrial projects with custom delivery requirements, we can arrange direct factory sourcing through Siemens' official order channel, with a maximum supply capacity of 500 units per quarter.

We also provide flexible stocking services for long-term cooperative customers, reserving a certain amount of stock according to your project schedule to avoid supply chain delays.

If you need a large quantity or have special delivery requirements, please contact our sales team for a customized quote and delivery plan.

7MH4950 Series Model Comparison

The SIWAREX U series from Siemens includes multiple models to meet different application requirements.

Below we compare the core differences between the 7MH4950 models to help you choose the right product:

As shown in the table, the 7MH4950-2AA01 is the most versatile model in the SIWAREX U series. The two independent channels allow it to control two separate weighing systems with a single module, which reduces the number of modules required and cuts system hardware cost by up to 30% compared to using two single-channel 7MH4950-1AA01 modules.

If you only need to measure a single weighing point, the 1AA01 is a more cost-effective choice, but for most industrial projects with multiple weighing requirements, the 2AA01 offers better overall value.

Recommended Matching & Compatibility

Compatible PLC Systems

The Siemens 7MH4950-2AA01 is designed specifically for Siemens SIMATIC S7-300 series PLC systems, and can also be installed in ET 200M distributed I/O stations to connect to S7-400, S7-1200, and S7-1500 PLC systems via PROFINET or PROFIBUS DP.

It works seamlessly with all Siemens TIA Portal software versions for configuration, programming, and diagnostics, which simplifies system integration and reduces engineering time.

Recommended Load Cell Matching

To get the best performance out of your 7MH4950-2AA01 module, we recommend matching it with Siemens SIWAREX series load cells, or other standard strain-gauge load cells with an output between 0.2mV/V and 5mV/V. For common applications, our recommended matching combinations are:

· Large platform scale (10t - 100t): 7MH4950-2AA01 + 4 * SIWAREX WL230 load cells, this combination supports high-precision static weighing for truck scales and tank weighing.

· Dual-hopper batching system: 7MH4950-2AA01 + 2 * SIWAREX SB1 load cells, the two independent channels can control two hoppers separately, simplifying system wiring.

· Dynamic belt scale: 7MH4950-2AA01 + 1 * SIWAREX WP201 load cell, the built-in dynamic weighing algorithm provides stable measurement for continuous batching processes.

Expansion Matching Recommendations

If you need more than 2 weighing channels, you can install multiple 7MH4950-2AA01 modules in the same S7-300 rack, with a maximum of 8 modules per rack supporting up to 16 independent weighing channels.

This modular design allows you to scale your system according to your project needs, from a simple single-scale system to a complex multi-channel batching and weighing system.

Typical Application Scenarios

The 7MH4950-2AA01 is widely used in many industrial fields, including:

· Batching and weighing systems in food, chemical, and pharmaceutical processing

· Static truck scales, rail scales, and platform scales for logistics and storage

· Dynamic checkweighing and belt scales for continuous production lines

· Tank and silo level measurement and inventory monitoring

· Force measurement and overload protection for industrial machinery

After-sales Support

All 7MH4950-2AA01 modules purchased from Floating Light Automation come with 12 months of official warranty. Our technical support team has over 10 years of experience with Siemens automation products and can provide remote assistance for configuration, calibration, and troubleshooting.

We also offer expedited replacement for defective products within the warranty period, with a replacement unit shipped within 48 hours for most global regions.

If you need to request a quote, check stock availability, or get more technical information about the Siemens 7MH4950-2AA01, please contact our sales team through the contact information on this website. We will reply to your inquiry within 12 working hours.