FieldServer FS-8700-80 - Manual (Page 10)

McQuay Micro Tech Open Protocol Driver Manual Page 10 of 43
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldserver.com
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]
Figure 4. MicroTech Architecture
RTU UV
Up to 63 MicroTech
controllers per BACdrop
BACnet on ISO 8802-3 (Ethernet), 10Bas eT
MicroTech
BACdrop
(level 1)
Chiller UV UV UV SCU
Level 2
M
ic
ro
T
ec
h
Level 1
BACnet BAS
by others
Main "front end"
PC for BAS
MicroTech network (RS-485)
1.2.6.3 Connected to multiple MicroTech unit controllers and a supervisory panel such as an RMC,
CSC, or RMS panel
When a FieldServer device will be replacing a BACdrop Gateway panel that was connected to multiple MicroTech
unit controllers with a Level 1 supervisory panel such as an RMC, CSC, or RMS, some re-wiring may be necessary.
The FieldServer device must be wired to the A Port of the Level 1 device. The B Port of the Level 1 device is then
wired to the B Port of all Level 2 devices with a daisy chain. See Figure 5 for details.
Figure 5. Level 2 BACdrop Panel with Level 1 Supervisory Panel
Chiller
Level 2
M
ic
ro
T
ec
h
Up to 63 MicroTech
controllers per BACdrop
BACnet BAS
by others
BACnet on ISO 8802-3 (Ethernet), 10BaseT
MicroTech
BACdrop
(level 2)
Level 1
Chiller Chiller
Main "front end"
PC for BAS
CSC
Chiller
MicroTech network (RS-485)
All data reques ts from BACnet BAS to
MicroTech level-2 controllers are routed
through level-1 MicroTech controller