Emerson Liebert PEX+ Series - Page 72

64 Chapter 6 Application Of INTELLISLOT
Liebert. PEX+Series Precision Air Conditioner User Manual
Figure 6-14 Networking diagram of TCP/IP communication card
 Note
 The single air conditioner unit does not need HUB.
The networking diagram of the 485 communication card ( Modbus protocol) is shown in Figure 6-15. Up to 32 air
conditioner units can be connected.
Figure 6-15 Networking diagram of 485 communication card
HUB
…
Air conditioner 1 TCP/IP
communication card
Air conditioner 2 TCP/IP
communication card
Air conditioner n TCP/IP
communication card
Network cable
connection
Monitoring center
Network cable
connection
Network cable
connection
Network cable
connection
…
Air conditioner 1 485
communication card
485 connection
485 connection
485 connection
485 connection
Monitoring center
Air conditioner 2 485
communication card
Air conditioner 32 485
communication card