Bms Connection - Hitachi PC-ARF Technical Catalogue

7 Gateways for building management systems
HARC-BX E
5 Set the 8 pin DIP switch (S202). The 8 pin DIP switch (S202) is used as follows:
Board not activated
Activate the board to control a given number of indoor units based on S201
Board active as slave
Board active master (only one board can be a master board on each H-Link line)
Test Mode for the activated board (see section Test Mode for further details)
DIP programming example:
The following diagram shows an example for connecting a HARC-BX(B) on an installation:
OU
Master
board
O
N 1 2 3 4 5 6 7 8
O
N 1 2 3 4 5 6 7 8
O
N 1 2 3 4 5 6 7 8
O
Slave
N 1 2 3 4 5 6 7 8
boards
O
N 1 2 3 4 5 6 7 8
O
N 1 2 3 4 5 6 7 8
O
N 1 2 3 4 5 6 7 8
O
N 1 2 3 4 5 6 7 8
IU: Indoor Unit
OU: Outdoor Unit

7.4.3.5 BMS connection

Take the following points into account for the correct connection of the BMS:
- The correct electric wiring as indicated in previous sections.
- The BMS protocol:
- The BMS should update its hardware via LonWorks as shown previously.
- BMS start up:
- Press the LON.SERV button:
When this button is pressed, the HARC-BX E sends the "Neuron Chip ID" identification.
-
- The communication starts at that moment and the BMS can read and receive orders.
- BMS troubleshooting is the responsibility of the BMS itself.
675 675
TCGB0106 rev.0 - 12/2014
H-Link connection
IU N
U
O 1
N 1 2 3 4 5 6 7 8
O
2
N 1 2 3 4 5 6 7 8
O
3
N 1 2 3 4 5 6 7 8
O
4
N 1 2 3 4 5 6 7 8
O
5
N 1 2 3 4 5 6 7 8
O
6
N 1 2 3 4 5 6 7 8
O
7
N 1 2 3 4 5 6 7 8
O 8
N 1 2 3 4 5 6 7 8
N
IU 00 IU 01
OU 0
IU 03 IU 04
OU 1
IU 00
OU 2
IU 00 IU 01
(OU 3)
IU 03 IU 04
IU 06 IU 07
IU 09 IU 10
IU 12 IU 13
IU 15 IU 00
ON 1 2 3 4 5 6 7 8
ON 1 2 3 4 5 6 7 8
ON 1 2 3 4 5 6 7 8
ON 1 2 3 4 5 6 7 8
ON 1 2 3 4 5 6 7 8
IU 02
IU 05
IU 02
IU 05
IU 08
IU 11
IU 14
IU 01
7