SIWAREX WP321 Siemens

Область применения

SIWAREX WP321 is the optimum solution wherever strain gage sensors, such as load cells, force sensors or torque measuring shafts, are used for measuring tasks.

The SIWAREX WP321 is suitable for the following applications:

• Non-automatic scales, e.g. platform scales
• Fill-level monitoring of silos and hoppers
• Measuring of crane and cable loads
• Force measurements
• Monitoring of belt tensions
• Setup of scales in hazardous areas

Обзор

SIWAREX WP321 is a versatile and flexible weighing module for the seamless integration of a static scale into the SIMATIC automation environment.

The electronic weighing system is integrated in the SIMATIC ET 200SP series and uses all the features of a modern automation system, such as integrated communication, operator control and monitoring, the diagnostic system and configuration tools in the TIA Portal, SIMATIC Step 7 and WinCC flexible.

Дизайн

SIWAREX WP321 is a technology module (TM) of the SIMATIC ET 200SP series and is thus linked to the controller in a distributed manner by means of an ET 200SP interface module (Profibus/Profinet).
The following BaseUnits (Type A0) can be used for integration:

For opening a new potential group:

BU15P-16+A10+2D (6ES7193-6BP20-0DA0)

BU15P-16+A0+2D   (6ES7193-6BP00-0DA0)

For continuing the potential group:

BU15P-16+A10+2B (6ES7193-6BP20-0BA0)

BU15P-16+A0+2B   (6ES7193-6BP00-0BA0)

The load cells or force sensors are connected to the terminals of the BaseUnit. This means that modules can be replaced quickly, easily and without any wiring work.

Функции

The primary task of the weighing electronics is to determine the current weight and force values on the basis of the signals supplied by the connected sensors. Thanks to the seamless integration into the SIMATIC environment, values can be processed directly and in any available programming language of the CPU. If the freely selectable and internally monitored values are exceeded or undershot, this is reported directly to the controller. A variety of status and diagnostic information can also be read out and evaluated in the CPU without difficulty.

The SIWAREX WP321 is calibrated in the factory. This not only permits automatic calibration of the scales (without the need for calibration weights), but also the replacement of modules without the need for recalibration.

Via the integral RS 485 port, a PC can be connected for setting the parameters of the weighing electronics using the "SIWATOOL" software. A USB RS 485 interface converter is required for this purpose.

Thanks to its seamless integration into the SIMATIC environment, the use of SIWAREX weighing electronics requires no complicated or expensive communication drivers for the scales.

Programmable weighing applications tailored to any situation can be created and then adapted or extended at any time in combination with the functionalities of the TIA Portal and of the SIMATIC Manager and WinCC flexible.

Likewise, WP321 enables scales to be set up in hazardous areas. Depending on the zone and the load cells used, the use of the SIWAREX IS Ex interface may also be necessary.

SIWAREX WP321 Ready for use

For an easy introduction to the integration of the module into the TIA Portal and SIMATIC Manager, a "Ready for use" sample project is available free of charge. This project demonstrates the integration of the module into the hardware configuration and contains the function block for communication between the CPU and SIWAREX. It also contains a ready-made data block that contains all the parameters for the scales. The "Ready for use" project is rounded off with a touch panel configuration feature, which not only permits complete commissioning of the scales from the panel, but also includes an "operator view" that can be used as an example for the normal operation of the scales.

SIWAREX WP321 SIWATOOL

SIWATOOL is a service software tool which enables you to calibrate the module quickly and efficiently on site, set or reset parameters, or perform diagnostics in the event of a fault. Furthermore, complete backup files can be created for the scales, which can be uploaded to a new module with a few mouse clicks, so that the module continues to operate exactly as it did before the backup, without the need for any recalibration. It is even possible to upload configuration files that were created offline, or to read out the error buffer. No special SIMATIC knowledge is required to use SIWATOOL. It is connected via the RS 485 port of the module which requires the use of a USB RS 485 interface converter. Please refer to the WP321 manual for further recommendations.

Особенности

The electronic weighing system described here is characterized by decisive advantages:

• Uniform modular design and integrated communication in SIMATIC ET200SP
• Parameterization of the scales via the control panel, CPU or PC
• Flexible configuration options in SIMATIC TIA Portal and SIMATIC STEP 7
• Measuring of weights and forces with a resolution of up to +/- 2 million parts
• 100 Hz/120 Hz measurement rate (efficient 50/60 Hz interference frequency suppression)
• Internal scale monitoring of freely definable limit values
• Easy commissioning using the "SIWATOOL" software
• Automatic calibration is possible without the need for calibration weights
• Modules can be replaced without recalibrating the scale
• Direct use in ATEX Zone 2 possible
• Wide range of status and diagnostic information
• "Ready-for-use" sample program

Технические данные

¹⁾ The S7 standard modules may not be operated at temperatures below 0 °C. For operating conditions below 0°C, SIMATIC modules from the SIPLUS series must be used.