How to install, System diagram, Installation specification – LG PQNFB17B0 User Manual
Page 12: 12 bacnet gateway
How to install
System diagram
Installation specification
• 256 indoor units at maximum / 1 BACnet Gateway
• Total 256 units(Indoor unit/Vent/DXHRV/AHU) at maximum / 1 BACnet Gateway
• RS-485 ports 4 / 1 BACnet Gateway
• 64 PI485 units at maximum / 1 RS-485 port
• 256 indoor units at maximum / 1 RS-485 port. We recommend to connect them divided into 4 ports
for improving the communication performance.
(1) When connecting the BMS by using one BACnet Gateway
Note: However, when it should be necessary to change the above specification, contact to the LG
System Air Conditioner supporting division.
ON
L1 2 3 4
KSDO4H
Multi V
PI485
00
01 . . . . . . . .
. . . . . . . .
. . . . . . . .
........
0F
LG-NET 1
MENU/
SELECT
TX
RX
LG-NET 2
TX
RX
LG-NET 3
TX
RX
LG-NET 4
TX
RX
Ethernet 1
ACT
LNK
Ethernet 2
ACT
LNK
Console
Run
Power
TX
RX
Ext 1
TX
RX
Ext 2
TX
RX
DI
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DO
1
2
3
4
ON
L1 2 3 4
KSDO4H
Multi V
PI485
10
11
1F
ON
L1 2 3 4
KSDO4H
Multi V
Multi
PI485
PI485
BMS
(Building
Management
System)
Hub
LAN
(direct cable)
20
F0
F1
F3
F2
21
2F
ON
L1 2 3 4
KSDO4H
BACnet Gateway
Simple central controller
(possible to connect if necessary)
12 BACnet Gateway
How to install