Technical Manual Temperature Controller
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4.5.6.2 - 4 Pipe system
When a divided pipe system is used, both operations can be parameterized individually.
Consequently two communication objects for the control value exist. So it is possible, to control the
heating process e.g. via a PI-control continuous and the cooling process e.g. via a 2-step control,
because both processes are controlled by different devices. So for every of the both processes are
the settings available, which are described fr
o . o t olle setti gs .
The following illustration shows the setting options for a 4 Pipe system:
Figure 24: 4 Pipe system