Siemens Siwarex WP231 weighing module

Siemens Industry Automation Division has launched a weighing module for the Simatic S7-1200. Siwarex WP231 is a weighing module suitable for monitoring filling levels in silos and bins and for use with goods being weighed on platform scales. The WP231 is intended for industries requiring a high level of measurement accuracy, such as the food and beverage, pharmaceutical and chemical industries. It is also suitable for use in explosive atmospheres.

The Siwarex WP231 weighing module can be fully integrated into the Simatic S7-1200 control, and its parameters can be quickly and easily set via the TIA Portal engineering platform. The module has four digital inputs and outputs and one analog output. The Siwarex WP231 can be connected to various systems and operator panels via an ethernet or RS485 interface with Modbus protocol and can be operated in standalone mode, independent of the Simatic S7-1200.

Users can define specific limit values and different parameters for the various individual outputs. Additional diagnostic functions, such as the documenting of weight and various process parameter readings (trace), make for greater transparency and facilitate the commissioning and maintenance of the module.

Due to its high resolution - one million parts - and a measurement cycle of 10 ms, the Siwarex WP231 is able to measure with a high degree of accuracy. Clear menus mean that the weighing module is easy to operate, whether in conjunction with the Simatic S7-1200 or via a directly connected HMI panel.