S7-1200 PLC SIWAREX WP251 calibratable weighing electronic 7MH4960-6AA01

Overview

SIWAREX WP251 electronic weighing module

SIWAREX WP251 is a flexible weighing module for dosing and filling processes. The compact module can be installed seamlessly in the SIMATIC S7-1200 automation system. It can also be used without a SIMATIC CPU in stand-alone mode.

Benefits

SIWAREX WP251 offers the following key advantages:

• Uniform design technology and consistent communication in SIMATIC S7-1200
• Uniform configuration with TIA Portal
• Legal-for-trade according to OIML R-76, R-51 and R-61
• Legal-for-trade according to OIML R-107 (available soon)
• Internal alibi memory for up to 550 000 entries
• Operation without SIMATIC CPU also possible
• Ethernet port ex works (Modbus TCP/IP / SIWATOOL)
• RS 485 interface ex works (Modbus RTU / remote display)
• Four digital inputs and outputs, one analog output ex works
• Measurement of weight and force with a high resolution of up to ± 4 million parts and an accuracy of 0.05%
• Simple calibration and setup of the scale using SIWATOOL V7 via the Ethernet interface
• Recovery-point for the simple restoration of all parameters
• Automatic calibration without the need for calibration weights
• Supports replacement of module without recalibration of scales
• Direct use in hazardous area zone 2

Application

SIWAREX WP251 is the optimum solution wherever fast and precise dosing and filling are required. The typical applications of SIWAREX WP251 are:

• Automatic catchweighing instruments (ACI) — legal-for-trade in accordance with OIML R-51
• Gravimetric filling instruments (GFI) — legal-for-trade in accordance with OIML R-61
• Non-automatic weighing instruments (NAWI) — legal-for-trade in accordance with OIML R-76
• Discontinuous totalizing automatic weighing instruments (THW) — legal-for-trade in accordance with OIML R-107 (available soon)