Rockwell Automation 1747-SCNR ControlNet Scanner Module Reference Manual - Manual (Page 33)

1 Publication 1747-RM623D-EN-P - June 2006
Chapter
3
Configure and Map Scheduled Data Exchange
with RSNetWorx for ControlNet Software
What This Chapter Contains This chapter provides information about the mapping of scheduled
connections between 1747-SCNR remote devices. This chapter also
contains questions you should ask before configuring your 1747-SCNR
scanner. The following table describes what this chapter contains and
its location.
Begin the Configuration
Process Planning before configuring your scanner helps make sure you can:
• use your memory bandwidth efficiently.
• give attention to device-specific needs and requirements.
• give priority to critical I/O transfers.
• leave room for expansion.
Questions to Ask Here are some questions you should ask yourself before you begin
configuring the 1747-SCNR scanner:
• What is on your network?
This is a very important question to answer. You should be
familiar with each device's:
• communication requirements.
• I/O importance and size.
• frequency of message delivery.
• How might this network appear in the future?
At this point in your planning, it is advantageous for you to have
some idea of how the network could be expanded. When
mapping your I/O, you have the opportunity to leave room for
future I/O. Answering this question now can save time and
effort in the future.
For Information About See Page
Beginning the configuration process 3-1
Questions to ask 3-1
Data transfer mapping 3-2