L-INX User Manual 287 LOYTEC
Version 4.0 LOYTEC electronics GmbH
BACnet addresses. This property tells a user which BACnet address the device will actually
use when trying to communicate with another device known only by its device instance
number. This information can be helpful when diagnosing network configuration problems.
Important! A BACnet address consists of the BACnet network number, which is 0 for the local
network, and the BACnet MAC address of the device.
In particular, if two or more devices in the network have been wrongly assigned the same
device instance number, two BACnetAddressBinding entries with the same instance number
but different BACnet addresses will be listed—provided the ambiguous instance number is
in some way required by the device (e.g., by a client mapping).
Important! Bindings between device instance numbers and BACnet addresses are only listed in
Device_Address_Binding if they are actually required by a given configuration, and are
currently known or ambiguous.
Slave_Address_Binding (Read-Only). This property is only present if the device is a
BACnet/IP-BACnet MS/TP router. It lists bindings between BACnet MS/TP slave instance
numbers (the instance number part of the slave‘s Device object ID) and BACnet addresses
of slaves on the MS/TP network for which the device serves as a slave proxy, see Section
13.3.1.9 for details.
Active_COV_Subscriptions (Read-Only). This property lists currently active COV
subscriptions.. Each entry of type BACnetCOVSubscription provides information about the
recipient address, the monitored property ID, whether notification are confirmed or
unconfirmed, the remaining time of the subscription, and optionally the COV increment.
Whenever the device receives a COV subscription via one of the services SubscribeCOV or
SubscribeCOVProperty, a new entry is added to Active_COV_Subscriptions. An entry is
removed from Active_COV_Subscriptions when a subscription terminates, either because it
times out or because it is actively unsubscribed by the subscriber.
13.3.1.6 Date & Time
The device‘s time and date are exposed to the network via the following set of properties.
UTC_Offset (Read-Writable). This Integer value specifies the time difference between
local time and UTC in minutes. The value of this property is configurable via the
configuration UI (see Section 4.2.1).
Important! Note that UTC_Offset is relative to local time and not relative to UTC, i.e., a time zone
offset of +1 (hour) corresponds to UTC_Offset being set to -60 (minutes).
Daylight_Savings_Status (Read-Only). This Boolean value indicates whether (TRUE) or
not (FALSE) daylight saving correction of the local time is currently active. The daylight
saving scheme is configurable via the configuration UI (see Section 4.2.1).
Local_Date (Read-Only). The current date according to the device‘s clock. The value of
this property can be changed via the configuration UI (see Section 4.2.1).
Local_Time (Read-Only). The current time according to the device‘s clock. The value of
this property can be changed via the configuration UI (see Section 4.2.1).
13.3.1.7 Time Master
The device can serve as a BACnet time master, i.e., it can issue TimeSynchronization and
UTCTimeSynchronization request on time synchronization events. A time synchronization
event occurs after rebooting, when the device‘s clock changes, or, if so configured,
periodically. The following properties are used to configure the time master.
To Next Page