System information

98
APPENDIX D — BACnet OPTION
General —
The 19XR PIC 5 controller supports the BAC-
net protocol as B-ASC BACnet equipment over IP. In addition,
BACnet on the PIC 5 controller supports the following fea-
tures:
• Optional properties such as Change of Value (COV),
Intrinsic Reporting, and Commandable properties on
some objects.
• The generation of limited alarm and event notifications
and the ability to direct them to recipients
• The tracking of acknowledgments of alarms from human
operators
• The adjustment of alarm parameters
• Read/write property for many services
Installing the BACnet Dongle — The BACnet op-
tion can be implemented at the factory or on-site. This section
is intended for on-site installation.
It is strongly recommended to disconnect the complete
power supply before any intervention. Disconnect the main
power supply with appropriate disconnect devices. Only per-
sonnel qualified to the level recommended in standard IEC
60364 (International Electrotechnical Commission) and trained
to do this may have access to electrical components.
MOUNTING THE BACNET DONGLE — Follow these
steps to mount the BACnet dongle in the PIC 5 control box:
1. Disconnect the PIC 5 control power supply.
2. Open the metal cover of the control box with a screw-
driver. See Fig. H and I.
3. Insert the BACnet dongle into the connector. See Fig. J.
4. Mount the plastic holder that holds the dongle to the
board. See Fig. K.
5. Close the box and power up the PIC 5 controller.
CAUTION
The components that make up the chiller controller include
electronic components. These may generate or be damaged
by electromagnetic interference such as electrostatic dis-
charge (ESD).
Technicians who do not have access to an ESD wrist strap
on site should follow these recommendations in order to
minimize the risk of ESD:
• Be sure to be at zero potential by touching an
unpainted surface on the electrical box.
• Do not wear clothing that tends to conduct electrical
charge, such as a wool sweater.
• Electrical storms can increase the ESD risk; unless
absolutely necessary, do not work on the chiller con-
troller during an electrical storm.
a19-2261
Fig. H — Opening Cover
a19-2262
Fig. I — Cover Removed
a19-2263
Fig. J — Inserting BAcNET Dongle
a19-226
Fig. K — Mounting Plastic Holder