Technical Manual
Glass Room Temperature Controller Smart SCN-RTRGx.02
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1
•
Germany
Phone: +49-2263-
880 • [email protected] • www.mdt.de
44
44
4.4.2.7 Lock objects
The following table shows all available settings:
ETS-Text
Dynamic range
[Default value]
Comment
Lock object for control value
Heating
▪
not active
▪
active
Activates the lock object for the
heating process.
Lock object for control value
Cooling
▪
not active
▪
active
Activates the lock object for the
cooling process.
Table 42: Settings
–
Lock objects for control value
By activating the lock objects, the user has one or two lock objects available for locking the control
value, depending on the setting of the controller type. These lock objects serve to prevent the
actuators (heating device or cooling device) from starting up undesirably. For example, if the
heating is not to start in certain situations, e.g. when the window is open, the lock object can be
used to lock the control value. Another application would be manual locking, for example in the
event of a cleaning pr
ocess. The lock object locks the control value as soon as a “1” is sent to the
associated communication object. The lock is cancelled with a “0”.
The following table shows the available communication objects:
Number Name/Function
Length Usage
28
Lock object Heating
–
Lock control value
1 Bit
Locking the control value heating
29
Lock object Cooling
–
Lock control value
1 Bit
Locking the control value cooling
Table 43: Communication objects
–
Lock objects for control value
4.4.2.8 Object for Heating/Cooling request
The following table shows the available settings:
ETS-Text
Dynamic range
[Default value]
Comment
Object for Heating request
▪
not active
▪
active
Activates an object to indicate whether
a heating request is present or not.
Object for Cooling request
▪
not active
▪
active
Activates an object to indicate whether
a cooling request is present or not.
Table 44: Settings
–
Objects for Heating/Cooling request
The setting "Object for request Heating/Cooling" allows objects to be displayed that indicate an
active heating or cooling process. These are status objects.
The objects can be used for a visualisation. For example, a red LED could indicate an ongoing
heating process and a blue LED could indicate an ongoing cooling process. Another possible
application is the central switching on of a heating or cooling process. For example, it can be
realised via an additional logic that all heaters of a building/area are switched on as soon as a
controller issues the request for heating. The object outputs a “1” as long as the respective process
continues. When the process is
finished, a “0” is output.
The following table shows the available communication objects:
Number Name/Function
Length Usage
34
Heating request
–
send request
1 Bit
Indicates an active/inactive heating process
35
Cooling request
–
send request
1 Bit
Indicates an active/inactive cooling process
Table 45: Communication objects
–
Objects for Heating/Cooling request
