SIWAREX WP231 is a versatile, legal for trade weighing module for all simple weighing and force measuring tasks. The compact module is easy to install in the SIMATIC S7‑1200 automation system. It can also be operated without a SIMATIC CPU.
The versatile, legal for trade weighing module for all simple weighing and force measuring tasks.
SIWAREX WP231 is a versatile, legal for trade weighing module for all simple weighing and force measuring tasks. The compact module is easy to install in the SIMATIC S7‑1200 automation system. It can also be operated without a SIMATIC CPU.
Key Features
- Uniform structure and universal communication through the integration in S7-1200
- Four digital inputs and outputs, one analog output, all inputs and outputs are controllable via the SIWAREX module or via SIMATIC S7-1200
- Operation also possible without SIMATIC CPU
- Easy commissioning via SIWATOOL or via HMI touch panel
- Extensive diagnostic functions
- Calibratable display
- Flexible adjustment for different requirements
- Theoretical adjustment without adjustment weights
- Modules can be exchanged without readjusting the scale
- Can be used for Ex-applications zone 2
Technical Specifications
SIWAREX WP231 | Integration in automation systems | SIMATIC S7-1200 Other systems via Modbus RTU or ModbusTCP/IP | |
|---|---|---|---|
Communication interfaces (on board) | SIMATIC Bus Ethernet RS485 | ||
EU type approval as non-automatic weighing machine, trade class III | 0,05%
| ||
Calibratable | Yes | ||
Internal resolution | up to 4 million parts | ||
Internal/external updating rate | 10ms/100Hz | ||
Design
SIWAREX WP231 is a compact technology module in the SIMATIC S7-1200 and can be connected directly via the system bus with S7-1200 components. The rail mounting of the 70 mm (2.76 inch) wide weighing module means that it is extremely easy to mount/wire.
The power supply, load cells, the RS 485, digital input/outputs and the analog output are connected via the screw connector of the weighing module. An RJ45 plug is used for the Ethernet connection.
Application
SIWAREX WP231 is the optimum solution wherever load cells are used for measuring tasks. The following are typical SIWAREX WP231 applications:
- Non-automatic weighing instruments, also legal for trade
- Fill level monitoring of silos and bunkers
- Measuring of crane and cable loads
- Load measuring for industrial lifts and rolling mills
- Scales in zone 2 hazardous areas
- Force measuring, hopper scales, platform scales and crane scales
Typical applications: non-automatic scale according to OIML76, level monitoring of silos and bunkers, weighing in hoppers and platform scales, suitable in hazardous application (with SIWAREX Ex-Interface IS).
The SIWAREX WP231 Advantage
SIWAREX WP231 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
- Operation without SIMATIC CPU possible
- Direct connection of an operator panel via Ethernet
- Direct connection of a remote display via RS 485 interface
- Modbus TCP/IP interface
- Modbus RTU interface
- Four digital inputs and outputs, one analog output
- Measurement of weight or 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
- Use in hazardous area zone 2
- Connection of digital force compensation load cells from WIPOTEC and Mettler-Toledo (type WM and PBK)
Build innovative machines faster without costly prototyping with Efficient Motion Control.
With Effective Motion Control, machine builders can easily overcome major challenges and enable faster time-to-market, increased functionality, resolve complex system requirements, and demands for safety and sustainability.
We are Siemens trusted and approved distribution partner.
As a Value Added Reseller in Siemens’ Approved Partner network, Parmley Graham is a proven supplier of a wide range of quality products in the UK and globally.
Find out more how this will benefit you or check Siemens Configurator.
