Operators Handbook DCU3 – System
1., Design and Function
BAEDCU3 - Rev. 4.6 - 0504 1 - 1
1 DESIGN AND FUNCTION
The Digital Measurement and Control System DCU3 has been especially developed for the automa-
tion of fermentor systems. The hardware is based on an industrial 32 bit VME bus micro processor
system. All measurement and control functions are implemented in the software. The software is
stored on a PC-card, which can easily be replaced for extensions of the system by new versions.
For the fermentors of the BIOSTAT
®
series the Sartorius BBI Systems GmbH offers a broad range of
standard configurations of the DCU3 – system, which consider the features of the individual type of
fermentor. However, the extent of functions implemented for a delivered system will always depend on
the specifications of the customer, as agreed prior to ordering of the fermentor system. Therefore even
specific customized configurations are possible.
Standard functions are data acquisition, sensor calibration, alarm monitoring and control of operation
conditions. Additional software modules provide control of process conditions by changing parameters
depending on running time and state of the process. This includes setpoint profiles for controllers,
timer functions for pulsed actuators, dosing counters, etc. Complete sets of process parameters may
be predefined as recipes to allow performing of reproducible process sequences.
The DCU3 can be integrated into hierarchical automation systems via its remote interfaces. A host
computer system can be connected, such as the proven MFCS-Systems, for instance, providing func-
tions like graphical visualization of processes, data acquisition and storage, process protocols, etc.
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