• Uniform design technology and consistent communication in SIMATIC S7‑1200
• Uniform configuration with TIA Portal
• Legal-for-trade according to OIML R76, R51, R61 and R107
• Internal alibi memory for up to 550 000 entries
• Operation without SIMATIC CPU 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 adjustment of scale using the SIWATOOL V7 program via the Ethernet interface
• Recovery point for simple restoration of all parameters
• Automatic calibration is possible 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 following are typical SIWAREX WP251 applications:

• Catchweighing instruments (CWI) - legal-for-trade in accordance with OIML R51
• Gravimetric filling instruments (GFI) - legal-for-trade in accordance with OIML R61
• Non automatic weighing instrument (NAWI) - legal-for-trade in accordance with OIML R76
• Discontinuous totalizing automatic weighing instrument (DTI) - legal-for-trade in accordance with OIML R107

Function

SIWAREX WP251 controls dosing and filling processes completely autonomously. Engineers can control the dosing valves (coarse/fine flow) directly via the four digital outputs of the module. This achieves maximum accuracy since you control the weighing process completely independently of the CPU and its cycle time.

Engineers can use the CPU to manage recipes and material parameters. Then transfer these parameters and the desired setpoint to SIWAREX WP251 by function block, and start the dosing process.

SIWAREX WP251 automatically optimizes the shut-off points, generates statistics, and logs every dosing task in the internal protocol memory that is also accessible from the CPU and can be read out by the CPU.

To obtain the most competitive quote, please contact our ANTLETS team.