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B1-8
IM 34M6H41-02E 2nd Edition : Aug. 1, 2005-00
This module is connected to external equipment using a 4- or 2-wire system. Figures
B1.3 and B1.4 show the connection diagram for 4-wire system and 2-wire system
respectively.
In the 4-wire system, SDA/SDB and RDA/RDB lines cross only between a higher-level
equipment and the Personal Computer Link module (see Figure B1.5).
PC, etc.
F3LC11-2F
F3LC11-2F
SDA
SDB
RDA
RDB
SG
SHIELD
(SDA)
(SDB)
(RDA)
(RDB)
(SG)
SDA
SDB
RDA
RDB
SDA
SDB
RDA
RDB
SG
SG
SHIELD
SHIELD
Te
rm
in
a
to
r
T
er
m
inator
FB10403.VSD
Figure B1.3 4-wire Terminal Block Wiring Diagram
PC, etc.
F3LC11-2F
F3LC11-2F
A
B
SG
SHIELD
(A)
(B)
(SG)
SDA
SDB
RDA
RDB
SG
SHIELD
SDA
SDB
RDA
RDB
SG
SHIELD
T
e
rm
inator
T
er
m
inator
FB10404.VSD
Figure B1.4 2-wire Terminal Block Wiring Diagram
CAUTION
In a 2-wire system, SDA-RDA, as well as SDB-RDB, should be shorted.
RS-232-C
/RS-422-A
converter
(a)
(b)
(c)
(d)
F3LC11-2F
F3LC11-2F F3LC11-2F F3LC11-2F
FB10201.VSD
Figure B1.5 Interconnections between F3LC11-2F Modules
Summary of Contents for F3LC11-1F
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