Description
Siemens S7-1200 SIWAREX WP231 Weighing Module
The Siemens SIWAREX WP231 (7MH4960-2AA01) is a versatile, high-speed weighing module designed specifically for the SIMATIC S7-1200 PLC system. It is used for non-automatic weighing applications, such as platform scales, level monitoring in silos/hoppers, and force measurement.
One of its standout features is the ability to operate in Standalone mode, meaning it can function even without an S7-1200 CPU, communicating directly with an HMI via Modbus.
Technical Specifications
| Feature | Specification |
| Product Series | SIWAREX WP231 |
| Resolution | Up to 4,000,000 parts |
| Measurement Rate | 100Hz, 10ms sampling |
| Load Cell Input | 1to 4 mV/V (analog strain gauge) |
| Interfaces | Ethernet (Modbus TCP), RS-485 (Modbus RTU), S7-1200 bus |
| Digital I/O | 4 Inputs / 4 Outputs |
| Analog Output | 1 Output (0/4 20 mA) |
| Accuracy Class | OIML R76 (Legal for trade compatible) |
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