Daikin AGZ 설치 및 유지 관리 매뉴얼 - 페이지 7
{카테고리_이름} Daikin AGZ에 대한 설치 및 유지 관리 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Daikin AGZ 14 페이지. Microtech ii chiller modbus communication module
Daikin AGZ에 대해서도 마찬가지입니다: 설치 및 유지 관리 매뉴얼 (12 페이지)
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Bus Termination
Bus termination resistors are used for properly terminating
a network based on twisted pair cabling with attention to
impedance.
NOTE: Refer to Echelon L
User's Guide for details regarding acceptable
configurations, cabling requirements,
terminations, impedance, and other requirements
(www.echelon.com).
Transmission Specifications
Component
Value
Network topology
Flexible Free Topology
Neuron chip processor
3150
Free Topology Transceiver
50051
(FTT-10A)
Cable types
TIA Category 5 (recommended)
Maximum cable length
1476 ft (450 m) per segment (total of all lines)
Maximum node separation
820 ft (250 m)
Data transmission
Two-wire, half duplex
Data transmission rate
78 kbps (baud)
Free topology: use one (1) 52.3 Ω bus terminator
at the busiest point of the network
Bus terminator
Daisy chain or standard line (dual) topology: use
two (2) 105 Ω bus terminators at the end of both
network segments
Repeaters and router are typically used when the
entire cable length in a given segment exceeds
1476 ft (450 m) in a free topology or 2953 ft
(900 m) in a line topology.
Repeaters and routers
Each trunk can have at maximum one physical
repeater. Repeaters and routers may not be used
in a ring topology. They must be placed before
the network's ring port.
www.DaikinApplied.com
W
FTT-10A Transceiver
on
orks
Software Interface to Unit Controller
The L
W
communication module software translates
on
orks
the Standard Network Variable Types (SNVTs) and Standard
Network Configuration Parameter Types (SCPTs) used in
the MicroTech III chiller unit controller into the variables and
parameters used by the L
conforms to the LonMark 3.4 chiller profile. Refer to MicroTech
III Chiller Unit Controller Protocol Document, ED 15120 for
additional information (www.DaikinApplied.com).
7
IM 968-4 • MICROTECH III CHILLER UNIT CONTROLLER
I
nTroduCTIon
W
network. The software
on
orks