Rockwell Automation 1747-L5xx SLC 500 Modular Hardware Style User Manual - Manual (Page 224)

Publication 1747-UM011G-EN-P - June 2008
224 Setting Up the DH+ Network
Wiring Connectors for DH+
Communication for SLC 5/04
Processors To connect Allen-Bradley devices with other devices over DH + , you must wire
the 3-pin cable connectors so that communication can occur through the
cabling. Each device requires its own node address.
Terminate the DH+ link on both ends by connecting a 150 Ω , 1/2 W resistor
between terminals 1 and 2 of the 3-pin connector when you are
communicating at 57.6 Kbaud with a PLC-5 processor or 115.2 Kbaud with
other SLC 5/04 processors. Use an 82
Ω , 1/2 W resistor if you are
communicating at 230.4 Kbaud with other SLC 5/04 processors or series E
enhanced PLC-5 processor.
SLC 5/04 CPU
PROC
PROG
FORCE
COMM
BATT
RUN
R
E
M
PLC±5/20
PROGRAMMABLE
CONTROLLER
1
2
1
2
A B
SLC 5/04 CPU
1
2
RUN PROG
FORCE
RS232 BATT
DH+ FLT
RUN
REM RUN PROG
FORCE
RS232 BATT
DH+ FLT
RUN
REM
Clear
Shield
Blue
Clear
Shield
Blue
Clear
Shield
Blue
Terminating
Resistor
Terminating
Resistor
Connector Connector Connector Connector
Belden #9463 Cable
Belden #9463 Cable