1
Publication 1747-IN062A-MU-P - April 2003
Installation Instructions
SLC
®
500 Programmable Controller Isolated
Link Coupler
(Catalog Number 1747-AIC)
Installing the DH-485
Communication Cable
Publication 1747-UM011,
SLC 500 Modular Hardware Style User
Manual,
contains complete instructions and guidelines for DH-485
link planning.
Powering the Link Coupler
In normal operation with the programmable controller connected to
the link coupler, the processor powers both the link coupler and the
peripheral device (DTAM, PIC, HHT) — if connected — through the
1747-C11 cable. No external power supply is required.
If you do not connect the processor to the link coupler, use a Class 2
24V dc power supply to power the link coupler and peripheral
device.
USB (DF1)
RS485 (DH485)
RS232 (DH485)
USB to DH485
INTERFACE CONVERTER
USB
OK
SW
DH485
R
C
US
CAT
SER
FRN
1747-UIC
A
X.X
Mfg
XXXX
LISTED IND. CONT. EQ. FOR HAZ.
LOC. A196,
OPERATING TEMP CODE TAG
CLASS 1 GROUPS A, B, C, AND D, DIV. 2
MADE IN INDIA
N223
DH-485
Peripheral
CPU
Power
SLC 500
ALLEN-BRADLEY
1784-PCM4
Cable
SLC 500 Modular
Controller
to
1784-PCMK
card in
PCMCIA
slot
DH-485 Link
1747-AIC
Link Coupler
1747-C11
Cable
1747-PIC
Interface
Converter
SLC 500 Fixed
Controller
Use Belden#3106
or #9842 shielded,
twisted-pair cable.
Daisy-chain cable
segments together.
Total length of
cable segments
cannot exceed
1219m (4000 ft).
158 mm
(6.22 in)
1747-UIC
Interface
Converter
to USB port
Belden #3106A or #9642
to serial port
1747-C10
Cable
Personal
Computer
1747-C13
Cable
ATTENTION
!
Always connect the CHS GND (chassis ground)
terminal to the nearest earth ground. This connection
must be made whether or not an external 24V dc
power supply is used.
