L-VIS User Manual
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LOYTEC
Version 6.2
LOYTEC electronics GmbH
scheduler always needs to provide one schedule for each day of the week (default
weekly schedule). For each special day defined by the calendar, an additional
daily schedule is required to support it.
NOTE:
If the scheduler units are used with LWEB-900 or are displayed on a schedule control in
extended UI mode, this value must be set to a high number, because one daily schedule will
be required for each event that is entered.
Entries in Time/Value table:
This is the total number of entries in each
scheduler defining a value template that should apply on a specific day starting at
a specific time (the time table).
Number of value templates:
This is the maximum number of value templates
supported by each scheduler.
Data size per value template:
This specifies the buffer size reserved to hold the
data for each value template. More data points or bigger data structures require a
bigger value buffer.
Max. number of data point maps:
Specifies the maximum number of
individual data points that this scheduler is able to control.
As can be seen from the above list, it is not easy to configure a LonMark scheduler object.
There are many technical parameters which need to be set and which require some
knowledge of how these scheduler objects work internally. Therefore, the configuration
software provides the following mechanisms to help in choosing the right settings:
Resources required by the current project:
The absolute minimum settings
required by the current project are shown in a table at the left side of the window.
This data may be used to fill in the values at the right side, but some additional
resources should be planned to allow for configuration changes which need more
resources.
Auto-Set:
This button may be used to let the configuration software decide on
the best settings to use, based on the current project. Since the current projects
resource usage is taken as a starting point, all schedulers and calendar patterns in
the project should first be configured as required before this button is used.
Set Defaults:
This button will choose standard values for all settings. In most
cases, these settings will provide more resources than necessary.
NOTE:
It is possible to enter anything here, until the project is actually saved or downloaded. At
this point in time, the software will check that the resources configured here are sufficient
to support the projects configuration. If this is not the case, this dialog will automatically
open so that the settings may be adjusted.
10.10.11 Resource allocation
On BACnet devices, there is always a direct assignment between a local scheduler point
and a server object, because the two are created and deleted together. Name and instance
number of the created server object for the scheduler may be set in the same way as for any
other server object.
For CEA-709 devices, resource allocation is more complicated. Once the required resources
are configured in the
Network Settings
Dialog, the local scheduler data points will be
assigned to the available scheduler objects of the device. Each new scheduler point will
pick the first available scheduler object, until all objects are used. Scheduler points which
cannot be assigned to a free scheduler will remain unassigned until enough schedulers are
created or other scheduler points are deleted. The assignment is shown in the columns
Index
