Description
The Siemens SIMATIC SIWAREX WP231 (7MH4960-2AA01) is a high-precision, trade-approved weighing module designed for the SIMATIC S7-1200 PLC system. This versatile module supports ±4mV/V load cell input with 5VDC excitation, making it ideal for industrial batching, filling machines, hopper scales, belt scales, and weighing control applications. The module features seamless integration with TIA Portal engineering platform and can be operated with or without a SIMATIC CPU, offering exceptional flexibility. With EU type approval as a non-automatic weighing machine (trade class III 0.05%), this module delivers measurement accuracy of 0.05% and internal resolution up to 4 million parts, ensuring reliable performance in demanding industrial environments.
Key Features
- Trade-Approved Weighing Module for SIMATIC S7-1200 PLC
- Load cell interface: ±4mV/V input signal, 5VDC excitation
- Module power supply: 24VDC, 0.2A
- High precision: 0.05% accuracy, 1 part per million resolution
- EU type approval: trade class III 0.05% (non-automatic weighing machine)
- Seamless integration with TIA Portal engineering platform
- Operation possible with or without SIMATIC CPU
- Communication interfaces: Ethernet (RJ45) and RS485 with Modbus protocol
- 4 digital inputs and outputs, 1 analog output
- Automatic adjustment capability without adjustment weights
- Supports module replacement without re-adjustment
- Certified by CE, UL, EAC, KCC
- Suitable for hazardous area zone 2 applications (with SIWAREX Ex-Interface IS)
Technical Specifications
- Power Supply: 24V DC, 0.2A
- Load Cell Input: ±4mV/V, 5V excitation
- Measurement Accuracy: 0.05%
- Internal Resolution: up to 4 million parts
- Update Rate: 10ms internal / 100Hz external
- Digital I/O: 4 inputs, 4 outputs
- Analog Output: 1 channel
- Communication: Ethernet (RJ45), RS485 with Modbus RTU/TCP/IP
- Dimensions: 70mm x 75mm x 100mm (standard S7-1200 size)
- Mounting: DIN rail mounting
- Operating Temperature: -20°C to +70°C
- Certifications: CE, UL, EAC, KCC
- Origin: Germany
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty
- Technical support for system integration and configuration
- Commissioning assistance via SIWATOOL V7 or HMI touch panel
- Firmware update support
- Compatibility verification with existing systems
Delivery Time
- Standard delivery: 3-5 working days
- Express shipping available upon request
Why Choose Our Store
- Genuine Siemens SIWAREX weighing components
- Global supply network with competitive pricing
- Expertise in industrial weighing and automation systems
- Comprehensive technical documentation
- Support for trade-approved applications
Applications
- Industrial batching and filling systems
- Hopper scales and platform scales
- Belt scales and conveyor weighing
- Level monitoring of silos and bunkers
- Force measurement and torque measurement
- Trade-approved weighing applications
- Hazardous area applications (zone 2)
- Manufacturing and process control systems
- Material handling and packaging systems
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