Wiring for communications
Carrier® ChillerVu™
(OPN-PSM-MPCXPE)
Carrier Proprietary and Confidential
CARRIER CORPORATION ©2017
Installation and Start-up Guide
22
All rights reserved
The Carrier® ChillerVu™ communicates using BACnet and/or third-party protocols, and can connect to a variety of
port types at multiple baud rates. See table below.
Port
Protocol
Port type(s)
Baud rate(s)
BACnet
Port S1
BACnet MS/TP
EIA-485 (2-wire)
9600 bps
19.2 kbps
38.4 kbps
76.8 kbps (default)
BACnet ARC156
156 kbps
Port E1
BACnet/IP
Modbus/IP
Telnet Diagnostics
Ethernet
10/100 BaseT
CCN
Port S2
CCN
EIA-485 (2-wire)
9600 bps (default)
19.2 kbps
38.4 kbps (Set CCN baud rate in
Driver Properties)
TPI
Port S2
Modbus
EIA-232
EIA-485 (2-wire)
EIA-422 (EIA-485 4-wire)
Various
TPI Port S2
LonWorks Explicit mode LonWorks Option Card connects
to the Option Comm port
LonWorks SLTA-10 connect to
5-pin S2 Port
2
38.4 kbps
2
57.6 kbps (configurable)
Local Access
Enhanced Access
Rnet
1
115.2 kbps
1
See
Local access to the Carrier® ChillerVu™
(page 51).
2
This baud rate is only between the Carrier® ChillerVu™ and the LonWorks Option Card or the SLTA-10. The
LonWorks network must use 78.6 kbps baud rate.
Wiring for communications