Fujitsu AIRSTAGE J-IIIL - Page 468

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System diagram
• Proper system diagram
Modbus
convertor
(UTY-VMGX)
Modbus
convertor
(UTY-VMGX)
Modbus
network
General purpose
Modbus
master unit
(Modbus
device)
Maximum 128
indoor units
Maximum 100
outdoor units
Maximum 100
outdoor units
Maximum 128
indoor units
Lighting
facilities
Security
system
Ventilation
system
alarm interface
Automatic fire
VRF network
Indoor unit
Outdoor unit
• Connected unit
Maximum controllable indoor units number per 1 Modbus convertor 128
Maximum controllable outdoor units number per 1 Modbus convertor 100
Maximum connectable Modbus convertor number per 1 VRF network system 9
Maximum number of connected Modbus convertor
units to one Modbus
master unit
Without repeater 31
With repeater 247
3-4. Modbus convertor for VRF (UTY-VMGX) - (05-130) - 3. Adaptor/Convertor units
CONTROL SYSTEM CONTROL SYSTEM