9
ENGLISH
INSTALLING ACP BACnet
Check points during the ACP BACnet installation
The number of PI485 connected to one RS-485 communication line
-
ACP BACnet provides 4 RS-485 ports for indoor unit connection. (CH 1~4)
-
Up to 16 PI485 for outdoor unit can be connected to one RS-485 port, and up to 31 PI485 for
-
SINGLE/ERV can be connected.
The number of the indoor units that can be connected to one ACP BACnet
(ACS I/O Interlocking is available on version 4.0.0 or later.)
One ACP BACnet can be connected up to 256 indoor units. With ACS I/O interlocking, you
can
connect 128 indoor units and 16 I/O modules. To one RS-485 port, all of 256 indoor units,
which is the maximum number that can be
connected to the ACP BACnet, may be connected
but communication latency will increase.
But, to improve the communication performance of
RS-485, it is recommended to be divided
and connected to 4 ports.
The maximum quantity of connected indoor unit is different depending on the quantity of
connected I/O modules.
Quantity of I/
O Module
Quantity of
Device
0
256
1
248
2
240
3
232
4
224
5
216
6
208
7
200
8
192
9
184
10
176
11
168
12
160
13
152
14
144
15
136
16
128
* Devices: Indoor units, ERV, DI/DOs, DOKITs, AWHPs, AHUs
Quantity of
Device
Quantity of I/O Module
Summary of Contents for BECON HVAC BACnet PQNFB17C0
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