Fujitsu Airstage J-II Series Design & Technical Manual page 489

®
3-3. MODBUS
„ MODEL: UTY-VMGX
„
● The convertor for connecting VRF network system to the BMS system built
®
by Modbus open network, for manage small to medium sized BMS and VRF
network system.
„ SYSTEM DIAGRAM
„
z Proper system diagram
„
General-purpose
®
Modbus master unit
®
(Modbus device)
Modbus
network
Lighting
facilities
Security
system
Automatic fire
alarm interface
Ventilation
system
VRF network
z Connected unit
„
Maximum controllable indoor unit number per 1 Modbus
Maximum controllable outdoor unit number per 1 Modbus
Maximum connectable Modbus
Maximum number of connected Modbus
master unit
CONVERTOR FOR VRF
Modbus
convertor
(UTY-VMGX)
®
Modbus
convertor
(UTY-VMGX)
®
Convertor number per 1 VRF network system
®
Convertor units to one Modbus
- (05 - 126) -
Maximum 100
outdoor units
®
Maximum 100
outdoor units
®
® Convertor
® Convertor
®
Maximum 128
indoor units
Maximum 128
indoor units
128
100
9
Without repeater 31
With repeater 247