Johnson Controls York Smart Equipment SC-EQ, Руководство по установке

Страница: 45 / 52

JOHNSON CONTROLS
45
FORM 450.50-N1
ISSUE DATE: 08/19/2019
6
SECTION 6 - LON PROTONODE
OVERVIEW
The LON ProtoNode in conjunction with the SC-EQ
communication interface card provides YORK® chill-
ers LON network connectivity. It is designed with two
active serial ports:
• A LON port, which is used to connect to a LON
FTT10 network.
• An RS485 port, which connects to the BACnet
MS/TP BAS port J12 on the SC-EQ.
The ProtoNode also contains an Ethernet port that can
be used for troubleshooting or to update the ProtoNode
firmware, if needed.
To simplify the installation and setup, the LON Proto-
Node comes preconfigured. The switches and internal
jumpers are preset at the factory for the correct node
ID, baud rate, and configuration file type. There are no
user switch settings required in the field. The Proto-
Node polls the SC-EQ and chiller micro board to deter-
mine what model chiller and what points are available.
This is based upon the options installed and configu-
ration of the chiller. The ProtoNode then dynamically
creates the LON points list. One ProtoNode part num-
ber covers all the various chiller models.
If a firmware update is needed, the user can add the new
ProtoNode firmware through the Ethernet port. A LON
interface file named fserver.xif is also available
from this port. The .xif file allows the LON Integra-
tor to engineer and bind the chiller points offline. This
file is automatically generated based upon the chiller
model and options installed.
The LON ProtoNode consists of a single module
mounted inside the chiller control panel. In most cases,
the chiller control panel supplies 24 VAC input power,
eliminating the need for an external power supply.
For YS OptiView panels, 24 VAC is not provided. For
YS OptiView panels the +12 VDC power to the SC-EQ
board is extended to the ProtoNode.
FIGURE 54 - LON PROTONODE FRONT VIEW
LONWORKS
SERVICE PIN
ETHERNET
PORT
RS-485 24 VAC
POWER
LD29256