Daikin D-BACS - Page 227

210 1.9 Electric Wiring
Interface for Use in BACnet
®
3. No Voltage Contact Output Wiring
4. Ethernet Communication Wiring
5. Communication Between Central Monitoring Board
1P191170C
B2
Do-1 : ON when the unit malfunctions
Do-2 : ON when an air conditioner
malfunctions
DMS502B51
Terminal contact size : M3.5
B1
A2
Cautions for wiring
1. Do not use multicore cables with three or more cores
2. Use wires of sizes between 0.75mm
2
and 2mm
2
3. Do not bind the wire for control
4. Wirings for control must be isolated from the power lines
5. Wire length : Max 150m
Do-2
Do-1
Lamp or the like
Recommended wire size 0.75~2mm
2
Lamp or the like
No voltage contact output contact specification is as follows
:Allowable current 10mA~1A
:Allowable voltage MAX. AC250V
A1
Cautions for wiring
Don't clamp these cables together with high voltage cables.
Failure to observe this instruction would cause control error.
10BASE-T/100BASE-TX
straight cable
BACnet
cliant
MS502B51
Ethernet
10BASE-T
100BASE-TX
HUB
Field supplied
7
5
8
3
2
4
6
1
7
5
8
3
2
4
6
1
7
5
8
3
2
4
6
1
D-SUB 9pin
(female)
DMS502B51
D-SUB 9pin
(female)
RS232C-2
Interface : RS232C
Baud rate : 9600 or 4800 bps
(automatic baud rate detection allows matching of baud rates
between BACnet Gateway and Central monitering board)
Transmission method : Asynchronous; Start bit : 1, Stop bit : 1
Control protocol : Polling/Selecting (centralized); Comforms to JISX5002.
Control station : Central monitoring board
Substation : DMS502B51
Transfer code : JIS7 unit +1 parity bit
Error control : Vertical parity check (Even)
: Horizontal parity check (LRC)
: Timer-based montitoring
Wiring length : Max. 15m
RS232C
crossing cable
D-SUB 9pin
(male)
CCD
RD
SD
DTR
SG
DSR
RTS
CTS
FG
Central
monitering
board
CCD
RD
SD
DTR
SG
DSR
RTS
CTS
FG
CCD
RD
SD
DTR
SG
DSR
RTS
CTS
FG