Siemens Siwarex 7MH3305-1AB Weighing Processor Module

Description

The Siemens Siwarex 7MH3305-1AB is an intelligent weighing processor module designed for precise measured value acquisition and advanced signal processing in industrial automation systems. Engineered for single-component batching scale applications, this module provides seamless compatibility with SIWAREX S architectures as well as legacy SIMATIC S5 programmable controller series including the 115U, 135U, and 155U racks. Occupying a compact width of a single rack slot, the 7MH3305-1AB delivers reliable, high-precision weighing functionality for demanding industrial processing environments and legacy system maintenance.

Features

• Intelligent weighing processor with advanced measured value acquisition and processing
• Designed specifically for single-component batching scale applications
• Compatible with SIWAREX S and SIMATIC S5 systems (115U, 135U, and 155U)
• Compact single-slot width optimized for standard PLC rack integration
• Obsolete lifecycle status supporting critical legacy weighing system maintenance

Applications

• Industrial single-component batching and filling systems
• Material weight measurement in chemical and processing plants
• Legacy SIMATIC S5 automation rack retrofits and maintenance
• Automated weighing and dosing production lines

Technical Specifications

Installation Guidelines

• Ensure the PLC rack power supply is completely switched off before inserting or removing the weighing module.
• Handle the module with proper electrostatic discharge (ESD) precautions to protect sensitive internal circuitry.
• Route load cell signal cables using shielded twisted-pair wire, ensuring shields are grounded properly at one end.
• Keep weighing signal lines physically separated from high-voltage power cables to eliminate electrical noise and measurement drift.