Changing baud rate (bacnet mstp only), Bacnet pics and bibs, Lonworks variables – Nortec BACnet User Manual
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19 | BACnet & LONWORKS Supplemental Install Manual
Changing Baud Rate (BACnet MSTP Only)
The baud rate for communications can also be changed through the respective dip switches.
By adjusting the settings according to
, the baud rate can be changed. For best
results it is recommended to set the baud rate to Auto (BACnet MSTP only), 9600, 19200, or
38400. Communication performance varies with building automation system manufacturer
and some experimentation with other baud rates may be required to obtain the best
performance. The Auto setting is currently only supported for BACnet MSTP networks.
BACnet Pics and Bibs
The Protocol Implementation Conformance Statement or “PICS” describes the BACnet
capabilities of a particular BACnet implementation. It is a written document, created by the
manufacturer of a device, which identifies the particular options specified by BACnet that are
implemented in the device.
BACnet Interoperability Building Blocks (BIBBs) describe a list of services a BACnet device
provides. The main areas that the building blocks are concerned with include: data sharing,
trends, schedules, device and system management. BIBBs help specify the interoperability
capabilities of a BACnet device. Please contact the factory to obtain a PICS statement or BIBBs
profile.
LonWorks Variables
LonWorks uses the identical set of variables/points as BACnet. For a detailed list of the
variables, please see
To facilitate the integration of a LonWorks unit within a network, it may be desirable to obtain an
External Interface File (XIF). Files of type .xif are used to convey the resources, specific objects
and data types which a LonWorks device possesses. The .xif file allows a network integrator to
simulate the presence of a networked humidifier even if it is not yet physically connected to the
network. In fact, if the integrator has the .xif files of all network devices, a complete system
could be simulated and configured off-line. Once the configuration is done, the integrator's
software tool can be connected to the actual system and the configuration information can be
downloaded.
The XIF file can be retrieved directly from the Optional Interface Card. A Windows based laptop
and an Ethernet cable (CAT 5 or better) are required for this process. This process requires the
“Remote User Interface” software tool from Fieldserver. It is available by visiting
and downloading the “Utility” software: