LOYTEC L-Gate - Math Objects; Create a Math Object

L-Gate User Manual 133 LOYTEC
Version 3.2 LOYTEC electronics GmbH
2. From the points in the import folder, select the alarm server points you are interested in
and click the
Use on Device speed button. This creates the corresponding alarm
client points in your project.
3. For CEA709, select the new alarm client point and adjust the name of the local NV
(default name is nviAlarm_2). This NV is located in the Clients functional block.
On BACnet devices, the new data points can be used right away to exchange alarm
information with the alarm server on the remote device. Just connect the new alarm client
data point to an alarm list control to view and acknowledge alarms reported by the
associated alarm server.
On CEA-709 devices, there is one extra step to take before the new data points will be
operational: The new static input NVs representing the alarm clients on the local device
need to be bound to the alarm outputs of the remote device. A CEA709 device normally
delivers alarms through an output NV of type SNVT_alarm_2 located in the node object of
the device, therefore the new input NV on the local device must be bound to the alarm
output NV of the remote devices node object. All required information is transmitted over
the alarm input NV, so it is possible to later bind the alarm client to any other alarm server
without rescanning the network.
Note: If connected via LNS, the binding to the nvoAlarm2 NV is made automatically by the
configuration software in the download process.
6.16 Math Objects
6.16.1 Create a Math Object
Math objects are advanced application objects that can execute mathematical operations on
data points. A math object takes a number of input data points (variables v
1
, v
2
, …, v
n
) and
calculates a result value according to a specified formula. When configuring a math object,
the input data points, output data points and the formula must be configured by the user.
Input data points can be configured with a change-of-value condition, to trigger the math
calculation only if the value changes more than a certain delta.
To Create a Math Object
1. Under the Global Objects folder, select the Math Object sub-folder.
2. Right-click and select New Math Object … from the context menu.
3. In the Create New Math Object dialog, enter a name and optionally a description for
the math object.