User Manual

3–4 Overview of Decoder Operations
Publication 2755-833
Figure 3.1 PLC Controller Configurations
Catalog N
o
1771-DB
BASIC I/O
Module➀
PLC
Processor
Catalog No.
1771-DA
ASCII I/O Module
1
7
7
1
D
A
PLC with ASCII or BASIC Module to
Decoder using RS-232
1
7
7
1
D
B
2755–DS/DD
Decoder
2755–DS/DD
Decoder
Requires BASIC Driver for communications betwee
1771-DB BASIC Module and Bar Code Decoder .
Multi-drop Link using Flexible Interface Module
and DH485 Data Link
.
.
.
.
.
PLC
Processor
Flexible Interface Module with
2760-SFC2 Protocol Cartridge
1771-1/OI/O
Rack
.
.
.
.
.
PLC
Processor
Flexible Interface
Module with
2760-SFC1 or -SFC2
Protocol Cartridge
Point
-
to
-
Point
L
in
k
u
s
in
g F
l
ex
ibl
e I
nt
erf
ac
e M
odul
e
RS-232, RS-422, or DH485 (point-to-point)
1771-1/OI/O
Rack
12
31
12 31
31 2 1
2755–DD1A/4A
Decoder
2755–DD1A/4A
Decoder
2755–DD1A/4A
Decoder
2755–DD1A/4A
Decoder
2755–DD1A/4A
Decoder
2755–DD1A/4A
Decoder
2755–DD1A/4A
Decoder
2755–DD1A/4A
Decoder
2755–DD1A/4A
Decoder
2755–DD1A/4A
Decoder
2755–DD1A/4A
Decoder
2755–DD1A/4A
Decoder
2755-CY1 with
NEMA Type 4 device or
2760-A485 connectors with
NEMA Type 1 device
PLC
Processor
1771-1/OI/O
Rack
2755–DD1A/4A
Decoder
Point
-
to
-
Point
L
in
k
u
s
in
g
P
LC-5 f
a
m
ily
pr
oc
ess
o
r
with serial ASCII port.
➀
1746 1/OI/O
Rack
SLC 5/03 Controller Multidrop
Using DH485 Datalink
SLC 5/03
Controller
2755–DD1A/4A
Decoder
31
231
2755–DD1A/4A
Decoder
2755–DD1A/4A
Decoder
1747-AIC Link
Coupler
ModuleModule
1747-C11 Cable