Flexible Technology for Continuous Weighing
The SIWAREX FTC (Flexible Technology for Continuous Weighing) weighing module integrated in SIMATIC S7/PCS 7 uses process control system features such as integral communication, diagnostics and configuration tools. SIWAREX FTC is the optimum solution for demanding continuous weighing applications. Weights can be measured with extreme accuracy in up to three ranges.
The versatile and flexible weighing module for belt scales, loss-in-weight feeders and solids flowmeters.
The SIWAREX FTC (Flexible Technology for Continuous Weighing) is a versatile and flexible weighing module for belt scales, loss-in-weight feeders and solids flowmeters. It can also be used to record weights and measure force. The SIWAREX FTC function module is integrated in SIMATIC S7/PCS 7 and uses the features of this modern automation system, such as integrated communication, diagnostics and configuration tools.
Key Features
- Uniform structure and universal communication through the integration in the SIMATIC S7 and SIMATIC PCS7
- Application in the decentralized system concept by connecting to PROFIBUS DP / PROFINET through ET 200M
- Weight measurement or force to resolutions of 16 million parts
- Precision (0.5 µV per e)
- High measuring rate of 10 ms
- Parameter definable input and output functions
- Flexible adjustment for various SIMATIC requirements
- Simple parameter definition with the SIWATOOL FTC program through the RS 232 interface
- Module exchanging without readjusting the scale is possible
- Scale progress recording/logging
- Intrinsically safe load cell supply for Ex-Zone 1 (optional)
- Application in Ex-Zone 2
- Extensive diagnostic functions
Technical Specifications
SIWAREX FTC | Integration in automation systems S7-400, PCS7, S7-300 | Via ET 200M, Direct integration in S7-300
| |
|---|---|---|---|
Communication interfaces | SIMATIC S7 (P-Bus), RS485, RS
232, TTY
| ||
Accuracy | 3 x 6000 d ≥ 0.5 μV/e
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Internal resolution
| 16 million parts
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Internal/external updating rate
| 400/100 Hz
| ||
Design
SIWAREX FTC is a function module of SIMATIC S7-300 which can be directly snapped onto the SIMATIC S7‑300 or ET 200M backplane bus. The rail mounting of the 80 mm wide weighing module means that it is extremely easy to mount/wire.
The load cells, the RS 485 serial interface, the analog output and the digital inputs and outputs are connected by means of the 40‑pin standard front connector, the PC (RS 232) by means of a 9‑pin SUB-D connector and the power supply by means of a separate 2-pin connector.
Operation of SIWAREX FTC in SIMATIC enables the belt scale to be completely integrated into the automation system.
Application
The SIWAREX FTC weighing module is the optimum solution wherever high demands are placed on continuous weighing procedures. Thanks to its outstanding measuring properties, weights can be measured with extreme accuracy in up to three ranges. In the case of force measurements, the value can be measured bidirectionally.
Typical applications for SIWAREX FTC include:
- Flowrate/flow measurement
- Belt volume measurement
- Material loading, summation
- Flowrate/flow control
- Belt load measurement
- Belt scale / weighfeeder
- Loss-in-weight scale
- Force measurement
The SIWAREX FTC Advantage
SIWAREX FTC is characterized by the following features:
- Uniform design and totally integrated communication in SIMATIC S7 and SIMATIC PCS 7
- Uniform configuration with SIMATIC
- Direct use in the SIMATIC automation system
- Use in distributed plant concept through connection to PROFIBUS DP/PROFINET using ET 200M
- Measurement of weight or force with high resolution of 16 million intervals
- High accuracy 3 × 6 000 d
- For use with analog strain gauge load cells
- Alternative option of connecting individual load cells from the manufacturers METTLER TOLEDO, WIPOTEC and PESA
- Display with SIMATIC standard operator panels
- Parameterizable inputs and outputs
- Parameterizable for highly versatile applications
- Flexible adaptation to different requirements with SIMATIC
- Simple adjustment of scale using the SIWATOOL FTC program
- Theoretical adjustment without calibration weights
- Replacement of module without renewed adjustment of scale
- Recording of weighing sequence
- 8 totalization memories with different digit intervals
- Can be used in Ex applications
Robotics & Automation
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