Daikin D-BACS - LON Communication Specifications

12.5 LON Communication Specifications 247
Interface for use in LONWORKS
®
12.5 LON Communication Specifications
12.5.1 LonMark Template Profiles
There are no LonMark Template Profiles created by the LonMark Association for the VRV. Therefore, original
specifications for the VRV have been created without using the LonMark Template Profiles. These original specifications
conform to standard network variable types established by the JRAIA.
12.5.2 LonMark Certification
The network variable types are original, so are not LonMark certified.
12.5.3 Object
There are 66 objects: Node Object, General and A/C 01-A/C 64.
The network variables regarding the
- Node Object: Lon monitoring node
- General: All A/C units in the DIII system
- A/C 01-A/C 64: Each of the A/C units in the DIII system
are all provided around the Interface for LONWORKS
®
.
12.5.4 Configuration Properties
(1) Minimum Send Time: Minimum Transmission Interval
The bound output network variables will not be sent until the minimum transmission interval has passed even if there
is a change in status value.
(When status is monitored, data regarding each status change is not sent upon each change but at minimum
transmission intervals.)
(2) Send Heartbeat: Heartbeat Transmission
The bound output network variables will be sent to notify the system once the minimum transmission interval has
passed even if there is no change in status value. The actual interval between transmitted messages will depend upon
factors such as the transmission capacity of the Interface for LONWORKS
®
and the network traffic status (the relative
volume of messages on the network).
The monitoring items to be sent are bound On/Off Status Report, Room Temperature Report, Filter Sign Report,
Error Status Report, Error Code Report and A/C Communication Status Report.