Slc 5/04 Data Highway Plus; Slc 5/04 Dh+ Connection - Allen-Bradley SLC 500 Manual
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Also See for SLC 500:
- Reference manual (694 pages) ,
- Quick start manual (70 pages) ,
- Migration manual (60 pages)
Table of Contents
SLC 5/04 Data Highway Plus
Data Highway Plus implements peer-to-peer communication with a token-passing scheme to rotate link
mastership among a maximum of 64 nodes. Since this method does not require polling, it helps provide
time-efficient reliable data transport.
The SLC 5/04 processor lets you operate DH+ communication protocol by means of the DH+
communication channel 1. The SLC 5/04 also supports full-duplex DF1 protocol using the DF1
channel 0.
The 3-pin connector is for actual DH+ communication and the 8-pin connector is for monitoring DH+
communication.
The DH+ LED provides an indication of the condition of the network communication. The color can be
green or red. A steady on condition indicates the processor is actively communicating on the network.
Flashing green indicates there are no active nodes on the network. Flashing red indicates there are
duplicate nodes on the link with the same node address.
SLC 5/04 CPU
RUN
FORCE
FLT
DH+
BATT
RS232
RUN
REM
PROG
DH+
Channel 1
DF1
Channel 0
SLC 5/04 DH+ Connection
The drawing shows a possible configuration for DH+.
PLC 5/15
LINE 2 BLUE
SHIELD
LINE 1 CLEAR
QUICKDESIGNER
QUICKPANEL
SLC5/04 Modular Controller
CN1
DATA
HIGHWAY
PLUS
MODULE
SLC 5/04 CPU
RUN
FORCE
FLT
DH+
BATT
RS23 2
RUN
REM
PROG
Allen-Bradley • • • • 17
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