The Siemens weighing electronics SIWAREX WP521 ST and WP522 ST are the technology modules for the SIMATIC S7-1500 Advanced Controller family.
The controllers are optimally prepared for gravimetric level measurement of silos and hoppers as well as for platform scales. Beside that the weighing modules can also be used for weighing applications in hazardous locations (with Ex-interface SIWAREX IS).
The new technology module is available in two variants: SIWAREX WP521 ST as single channel option for the set-up of one scale and SIWAREX WP522 ST as two-channel option for the set-up of two independent scales. Integrated in SIMATIC S7-1500 all advantages of the automation system can be used. This leads to a totally integrated hardware setup, programming and operation/control of the scale within the TIA environment.
In combination with all other SIMATIC standard components it is possible to create the optimum solution for different applications and requirements.
The free “ready-for-use“ application helps to create fast and easily customer and application specific solutions. Besides that, the service software SIWATOOL V7 enables a quick and user-friendly commissioning of the scale – without any SIMATIC knowledge.
Different interfaces and connection possibilities are available on board:
SIMATIC S7-1500 system bus, Modbus TCP/IP (Ethernet), Modbus RTU (RS485), four digital outputs and three digital inputs. The integrated monitoring function of the load cells impedance as well as the process and diagnosis alarm functions optimize the plant security resp. plant availability.
- Uniform structure and universal communication through the integration in SIMATIC S7-1500
- Integrated part of TIA portal
- Resolution of +/- 4 million parts
- Measurement rate of 100/120 Hz (effective interference suppression)
- Automatic monitoring of the load cells impedance, process and diagnosis alarms
- Complete parameterization and commissioning via CPU, HMI panel or PC possible
- Direct use in hazardous zone 2