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Rockwell Automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM User Manual

Page 309

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Publication AG-UM008C-EN-P - February 2005

Configuring RSLinx Classic Software for DF1 Half-Duplex Communications 9-3

Figure 9.2 Define Polling Lists

Table 9.2 Define Polling Lists Parameter Description

Control

Control Text

Priority Stations

Stations defined as Priority are polled during every polling cycle. All Priority Stations are polled, and then
one Normal Station is polled. All Priority Stations are polled again, and then another Normal Station is
polled. This cycle continues until all Normal Stations are polled.

Priority Stations

Displays the current list of Priority Stations.

Add

Click this button to add a station to the Priority Stations list.

Delete

Click this button to delete a station from the Priority Stations list.

Move

Click this button to move a station from the Priority Stations list to the Normal Stations list.

Normal Stations

Stations defined as Normal are polled one at a time after each Priority Stations polling cycle. All Priority
Stations are polled, and then one Normal Station is polled. All Priority Stations are polled again, and then
another Normal Station is polled. This cycle continues until all Normal Stations are polled.

Normal Stations

Displays the current list of Normal Stations.

Add

Click this button to add a station to the Normal Stations list.

Delete

Click this button to delete a station from the Normal Stations list.

Move

Click this button to move a station from the Normal Stations list to the Priority Stations list.