Rockwell-automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM Manuel d'utilisateur Page 41

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Publication AG-UM008C-EN-P - February 2005
Configuring Enhanced PLC-5 Processors 2-3
The DF1 Point-to-Point Station Address of the processor is the same as
the DH+ address defined by S1.
Configuring a DF1
Half-Duplex Standard
Mode Master Station
Choose standard-communication mode if you want to query slave
stations for information based upon user-configured polling lists. This
mode is used most often in point-to-multipoint configurations because
it allows polled report-by-exception (
page 1-4), slave-to-slave
messaging (page 1-5) and slave programming over the telemetry
network to be implemented. In addition, in this mode the master
station maintains an active node table which allows an HMI or
programming terminal to immediately identify which slave nodes can
currently communicate and which nodes cannot.
T
Set Switches:
T
o Specify:
12345678910
RS-232C
ON ON ON OFF OFF ON ON OFF ON OFF
Toggle pushed
ON
Toggle pushed
OFF
toward BOTTOM
toward TOP
ATTENTION
Connect only the pins shown in figure 2.2. Do not
use a ribbon cable or one that connects to every
25-pin.
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