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Process Control
Apart from pure measurement technology,
cetotec also offers State-of-the-Art SIEMENS process control equipment
adaptable to the processes employed by each customer. This equipment
can control entire fermentation processes or simply parts thereof. The
following process parameters are registered and evaluated by the PLC to
control fermentation: temperature, alcohol concentration,
filling level and foam generation. Additional parameters can be measured
and evaluated on request.
SIEMENS PLC S7 - 300
 The
reliable Siemens-PLC system has been used successfully for the control
of vinegar production processes worldwide. The new State-of-the-Art
Siemens S7 - 300 allows the smooth control of the fermentation
process. The Fermenter as well as all motors and pumps are depicted on
a large colour 10" Touch Panel, which is easy to operate. The SIEMENS
PLC calculates the recipes for the fermentation process. A few basic
values (e.g. the target total concentration, the desired concentration
of alcohol and acetic acid, nutrient concentration) are entered
and the recipes are calculated automatically on the basis of these
values. Besides actuating all motors, pumps and sensors, it controls
the whole fermentation process, such as the exact dosing of alcohol,
water and nutrients to a given recipe.
Process visualisation
The software, being specially designed for vinegar fermentation allows
a clear depiction of the fermenter with filling level, temperature, air
volume, alcohol content. Furthermore all active motors and the dosed
volumes of alcohol and nutrients are displayed. Trends display an
overview of the fermentation process
of the last days and improve
production security. These data may be stored and retrieved at any
moment. Error messages are displayed in full text. Our remote control
monitoring system allows a survey of the fermentation process via
modem.
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