10 KOMAC00607-09EN
System Architecture
The overall controls architecture uses the following:
• One Microtech III main controller
• I/O extension modules (sometimes referred to as “controllers”) as needed depending
on the configuration of the unit
• Optional BAS interface as selected
Figure 6, System Architecture
I/O Extension
Compressor 1
I/O Extension
Compressor 2
I/O Extension
Compressor 3
I/O Extension
Compressor 4
I/O Extension
EXV 1
I/O Extension
EXV 2
I/O Extension
EXV 3
I/O Extension
EXV 4
I/O Extension
Fans Circuit 1
and 2
I/O Extension
Fans Circuit 3
I/O Extension
Fans Circuit 4
I/O Extension
Fans Circuit 3
and 4
I/O Extension
Alarm/Limiting
BAS Interface
(Bacnet, Lon,
Modbus)
Microtech III Main Controller
Peripheral Bus
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