![Honeywell Excel 800 Installation And Commissioning Instructions Download Page 11](http://html.mh-extra.com/html/honeywell/excel-800/excel-800_installation-and-commissioning-instructions_149108011.webp)
Excel 800
Planning
11
EN1B-0375GE51
R0910
L
ON
W
ORKS
Bus Topologies
The L
ON
W
ORKS
Bus is a 78-kilobit serial link that uses
transformer isolation so that the bus wiring does not have a
polarity. I.e. it is not important which of the two L
ON
W
ORKS
Bus terminals are connected to each wire of the twisted pair.
The L
ON
W
ORKS
Bus does not need to be shielded on the
controller module side.
The L
ON
W
ORKS
Bus can be wired in daisy chain, star, loop
or any combination thereof as long as the maximum wire
length requirements are met.
Configuration
The recommended configuration is a daisy chain with two
bus terminations. This layout allows for max. L
ON
W
ORKS
Bus lengths, and its simple structure presents the least
number of possible problems, particularly when adding on to
an existing bus.
See also “L
ON
W
ORKS
Mechanisms”, Product Literature no.:
EN0B-0270GE51.
C-Bus Topologies
Via the C-Bus up to 30 C-Bus devices (e.g., controllers, etc.)
can communicate with one another and a PC central. The
C-Bus must be connected via the individual controllers
(open ring).
Note
Star connection is not allowed because uncontrollable line
reflections may occur.
Instead of an Excel 800 Controllers, other C-Bus controllers
(e.g., the Excel 500, Excel 100, Excel 50) can also be
connected.
Fig. 4
C-Bus topology Excel 5000
Accessories
Besides the auxiliary parts of Table 5 on page 7, the
following accessories are available.
Preconfigured Connection Cables
Type
Connecting XCL8010
Controller with
Features
XW882
XI582 Operator Interface
5 m, shielded,
RJ45 plug with clip
XW582
+ XW586
XI582 Operator Interface
See XW582 and
XW586
XW884
Adapter cable for Excel
500/600 Controllers
0.2 m, shielded,
RJ45 – 9 pin sub-D
XW885 Laptops
3 m, shielded,
RJ45 plug with clip
XW585
+ XW586
Laptops
See XW585 and
XW586
XW586 Modems
1.8 m, RJ45 – 9 pin
sub-D
Table 14 Preconfigured connection cables
XW882 Cable Details
1
2
3
6
7
8
4
5
XI582
WIRING
TERMINALS
XW882
SHIELD
LOOSE
ENDS
RxD
GND
+5VE
TxD
YELLOW
GRAY
(not used)
BROWN
GREEN
WHITE
1
4
3
2
RJ45 plug with clip at front
+5V
Fig. 5
XCL8010/XI582 cable details
XW884 Cable Details
1
2
3
6
7
8
4
5
RS232 plug
sub-D female
SHIELD
XW884
6
7
8
9
1
2
3
4
5
RxD
RTS
TxD
GND
RJ45 plug with clip at front
+5V
Fig. 6
XCL8010/Excel 500/600 cable details