Nortec LINKS XPS MH - Manual (Page 43)

Links XPS for MHTC | 40
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.
Variable Definition
In the variable name, “_x” denotes the humidifier number. If there is only one humidifier, all variable
names will end in “_1”. If two units are networked together, see Figure 4, the second unit’s variable names
will end in “_2”. For 3 networked units, “_3” and so on. If unsure of the unit number, each unit will have a
label, in the electrical compartment close to the terminal strip, indicating the device instance of each
humidifier.
Nortec Links
XPS
is capable of communicating a variety of variables for each unit that is
connected to it. For a variable listing and definition refer to Table 6. Network variable addresses
for the humidifiers may be seen in Table 7 to Table 14.