MDT Technologies SCN-RT2UP.01, Руководство пользователя

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Technical Manual Temperature Controller
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4.4.4 Blocking objects
The following settings are available at the ETS-Software:
Figure 12: Blocking objects
The following chart shows the dynamic range for this parameter:
ETS-text
Dynamic range
[default value]
comment
Heating disable object

Inactive

Active
activates the blocking object for the
heating process
Cooling disable object

Inactive

Active
activates the blocking object for the
cooling process
Table 26: Blocking objects
Depending to the adjusted controller type, one or two blocking objects are available. The blocking
objects disable the control value. The blocking objects can be used when the heating or cooling
system shall be prevented of an unwanted start.
If the heating must not start at special situations, for example when a window is opened, the
blocking object can be used. Another usage of this function is for example the manual blocking, for
example by a push button, in case of a cleaning process.
The blocking objects have the size of 1 Bit and blocks by sending a logical 1 at the depending
communication object.
The chart shows the relevant communication objects:
Number Name Length Usage
13 Heating disable object 1 Bit blocks the control value heating
14 Cooling disable object 1 Bit blocks the control value cooling
Table 27: Communication objects blocking objects