Step 3. Lay Out Communications And Power Wiring; Lon Works Layout - Honeywell Excel 10 W7752D User Manual

EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE
Step 3. Lay Out Communications and Power
Wiring
L W Layout
ON ORKS
The communications bus, L
that uses transformer isolation and differential Manchester
encoding. Wire the L W
ON
set forth in Table 10. An FTT L
daisy chain, star, loop or any combination thereof as long as
the max. wire length requirements given in Step 2 are met.
Excel 5000
Excel 5000
Excel 10 W7754
EN2B-0285GE51 R0909
W , is a 78-kilobit serial link
ON ORKS
using wires with specifications
ORKS
W can be wired in
ON ORKS
Excel 10 W7754
FCU Controller
Honeywell
D-71101 Schönaich
Made in Germany
12
Fig. 13. L W wiring layout for one daisy-chain network segment
ON ORKS
Excel 10 W7754
FCU Controller
Honeywell
D-71101 Schönaich
Made in Germany
12
FCU Controller
Honeywell
D-71101 Schönaich
Made in Germany
12
max. 60 nodes
Fig. 14. L W wiring layout for two daisy-chain network segments
ON ORKS
NOTE: Due to the transformer isolation, the bus wiring does
not have a polarity; that is, it is not important which
of the two L
each wire of the twisted pair.
L W networks can be configured in a variety of ways,
ON ORKS
but the rules listed in Table 9 always apply. Fig. 13 and Fig.
14 depict two typical daisy chain L
one as a single bus segment that has 60 nodes or less, and
one showing two segments. Fig. 15 shows examples of free
topology bus layouts. The bus configuration is set up using
the Network Manager tool.
Excel 10 W7752
FCU Controller
Honeywell
9 10 11 12
Excel 10 W7752
FCU Controller
Honeywell
9 10 11 12
max. 60 nodes
Excel 10 W7752
FCU Controller
Honeywell
9 10 11 12
18
W terminals are connected to
ON ORKS
W network layouts;
ON ORKS
LonWorks
router