Trane PIC - Modbus BMS Wiring Instructions

Installation
BAS-SVX08D-E416
Wiring PIC with Modbus Building Management System
Wiring PIC with RS-232 Modbus BMS
Wiring PIC with RS-485 Modbus BMS
Protocol Interface
Controller
MODBUS
TxRx
RS485RS232
A Ref BRJ-45
Resistor
On
DIAG
USB
COMM3
1TxRx2 SHD
Service
PIN
LON
BABA
24VGND
CONFIGURATION
SW1 SW2
SW3 SW4
Rx
Serv.
0V
ON
24 V
Imax=0.5A
MODBUS BMS
RS-485
24V AC/DC
+6V/-12V
R+
Ref.
R-
Protocol Interface
Controller
MODBUS
TxRx
RS485RS232
A Ref BRJ-45
Resistor
On
DIAG
USB
COMM3
1TxRx2 SHD
Service
PIN
LON
BABA 24VGND
CONFIGURATION
SW1 SW2 SW3 SW4
Rx
Serv.
0V
ON
24 V
Imax=0.5A
MODBUS BMS
RS-232
2
24V AC/DC
+6V/-12V
81
1
Common
RXD
TXD
8
1 2 3 4 5
6 7 8 9
3
5