Carrier ChillerVu - Wiring for Third Party Protocols; To Wire to Modbus RTU on Port S2

Wiring for third party protocols
Carrier® ChillerVu™
(OPN-PSM-MPCXPE) Carrier Proprietary and Confidential CARRIER CORPORATION ©2017
Installation and Start-up Guide 27 All rights reserved
You can connect third party protocols after you set up BACnet. The drv_psmio for the Carrier® ChillerVu™ allows
access to the following third party protocols. Additional drivers are not required.
You can use these combinations of protocols or a subset of them:
• Port S1 (1 protocol) AND Port S2 (1 of 3 protocols) AND Port E1 (all 4 protocols or any combination of them)
• Port S1 (1 protocol) AND the Option Comm (1 protocol).
Port
Protocol(s)
Port S1 BACnet MS/TP or BACnet ARC156
Port S2 1 of the following 3 protocols - DIP switch selectable (TPI or CCN)
• Modbus RTU
• Lonworks via SLTA
• CCN
Option Comm LonWorks Option Card
Port E1 All 4 or any combination of the following protocols:
• Modbus/IP
• BACnet/IP
• BACnet/Ethernet
• CCN/IP
To wire to Modbus RTU on Port S2
NOTE
You can use Port S2 for CCN or Modbus RTU or LON SLTA-10, but not at the same time.
1 Turn
off
the Carrier® ChillerVu™'s power.
2 Set DIP switch 5 to
TPI
.
3 Set jumpers to
EIA-485
and
Half Duplex
.
4 Connect the communications wiring to Port S2. Connect to
Net+
,
Net-
, and
Gnd
.
Wiring specifications
○ A dedicated 24 AWG to 18 AWG twisted pair wire (EIA-485)
○ 2000 feet (610 meters) for 76.8 kbps
○ 3000 feet (914.4 meters) for 9600 bps, 19.2 or 38.4 kbps, before needing a Repeater
Wiring for third party protocols