PREPARATION
Check the installation environment and configure the device address
AC Smart BACnet can connect up to 128 devices (including indoor units, ERV, DI/DOs, DOKITs,
AWHPs, AHUs) or 64 devices (including indoor units, ERV, DI/DOs, DOKITs, AWHPs ans AHUs) and
9 I/O Modules.
BACnet protocol is not supported for Modular AHU and I/O module.
The following shows an example of connecting AC Smart BACnet with such devices.
Quantity of
I/O Module
Quantity of
Device
0 128
1 121
2 114
3 107
4 100
5 93
6 86
7 79
8 72
9 64
128
64
9
* Devices : Indoor units, ERV, DI/DOs, DOKITs, AWHPs, AHUs
Quantity of Device
Quantity of I/O Module
AC Smart BACnet connects with PI485 and uses RS485 to communicate and exchange information.
Allocate unique addresses to those devices (internal units, ERV, DI/DOs, DOKITs, AWHPs, AHUs,
I/O Modules) that will connect with AC Smart BACnet. The addresses are hexadecimal numbers that
can be chosen from 00 to FF.