Installation & Commissioning of Control & Monitoring Add On’s
Page: 5
4.1
Address Setting and Terminating the Communications Bus
Address Setting ( SW1 )
Except for the LED Mimics in
ZoneSense PLUS
FACP’s there can only be one (1) Board / Card of
each type so the address on each board is set to 1.
Note:
There can be up to 8 remote LED Mimics so the address of each is set from 1-8 depending
on the number Mimics in the system. The information displayed at each location will be identical.
DIL Switch: ON = 1, OFF = 0
Address 1234
Address
1234
01 1000
05 1010
02 0100
06 0110
03 1100
07 1110
04 0010
08 0001
Figure 4:Address Table & Example of Switch ( SW1 ) Set to 1
Terminating the Communications Bus
LK1 is the EOL Link and
must
be inserted on the last board on each communications bus. If not,
a communications fault can occur.
TB2
K1
Shield
CN5
CN9
Front Panel
Card 1
Front Panel
Card 2
Backpan
BRD 1
Backpan
BRD 2
INSERT
LK1
Remote
Card 1
Remote
Card 2
LCS 1
LCS 2
INSERT
LK1
INSERT
LK1
INSERT
LK1
If Agent Release is fitted to the FACP there will be an Agent Termination Board mounted on the Backpan.
Local Control Stations can then be fitted at some location remote from the FACP. These LCS's communicate
with the ATB via a second RS485 bus hence the last LCS in the chain will have to be terminated
Note: If Backpan boards AND remote facilities
are fitted the front panel cards are not terminated
To
TB1 Agent Termination Board
Fit K1 if only the
Main Control
Card is used as
the FACP or
1 Bus is used
RS485
+
-
BUS 1 ( B1 )
BUS 2 ( B2 )
BUS 3 ( B 3)
( Link 1 in Table below )
( Link 2 in Table below )
( Link 3 in Table below )
BUS 4 ( B 4)
Fit LK1 to last LCS
Figure 5: RS485 Communication Bus Terminating
Linking
Table
Link
Bus Configuration
B1
B1,2
B1,3
B1,2,3
B,2
B2,3
B3
1
X & K1
X
X
2
X
X
X & K1
X
3
X
X
X
X & K1
X = Insert Link
B1: Bus 1 to Front Panel Cards
B2: Bus 2 to Backpan Boards
B3: Bus 3 to Remote facilities
B4: Bus 4 Local Control Station cabled to the backpan Agent Release Board.
Note:
Programming and the communication process allows the Main Card to identify the type of
board it is communicating with.
1
2
3
4
On
