Wiring Pic With Modbus Building Management System; Wiring Pic With Rs-232 Modbus Bms; Wiring Pic With Rs-485 Modbus Bms - Trane PIC Installation Operation Maintenance/ Programming

16
Installation

Wiring PIC with Modbus Building Management System

Wiring PIC with RS-232 Modbus BMS

1 8
1 2 SHD Rx Tx USB
COMM3 DIAG RS232
Protocol Interface
Controller
Service Rx
CONFIGURATION
SW1 SW2 SW3 SW4 PIN Serv. A

Wiring PIC with RS-485 Modbus BMS

1 2 SHD Rx Tx USB
COMM3 DIAG RS232
Protocol Interface
Controller
Service Rx
CONFIGURATION
SW3 SW4 A
SW1 SW2 PIN Serv.
Common
8
RXD
1
TXD
RJ-45 Rx Tx A Ref B On
MODBUS RS485 Resistor
LON 24 V
Imax=0.5A
B A B 0V GND 24V
ON
24V AC/DC
+6V/-12V
RJ-45 Rx Tx A Ref B On
MODBUS RS485 Resistor
LON 24 V
B A B Imax=0.5A
0V GND 24V
ON
24V AC/DC
+6V/-12V
MODBUS BMS
2
RS-232
3
5
1 2 3 4 5
6 7 8 9
MODBUS BMS
RS-485
R+
Ref.
R-
BAS-SVX08D-E4