Allen-Bradley DeviceNet 1784-PCIDS, Руководство пользователя, Страница: 23 / 101

1 Publication 1784-6.5.30 - February 2001
Chapter
2
Planning Your Configuration and Data
Mapping Your Devices
What This Chapter Contains This chapter introduces questions you should ask before configuring
your 1784-PCIDS card. In addition, it presents an example DeviceNet
network and I/O data mapping scheme for a photoeye and a
RediSTATION operator interface module. The following table
identifies what this chapter covers and where to find specific
information.
What You Need to Know
To map data via your 1784-PCIDS communication interface card, you
must understand:
•
your network requirements
•
how input data is mapped
•
how output data is mapped
Beginning the Process
Planning before configuring your 1784-PCIDS communication
interface card helps make sure that you can:
•
use your memory and bandwidth efficiently
•
cater to device-specific needs and requirements
•
give priority to critical I/O transfers
•
leave room for expansion
For information about See page
What You Need to Know 2-1
Beginning the Process 2-1
The Example Network 2-2
Example Network Devices 2-2
Photoeye Input Data Mapping 2-7
Mapping Photoeye Input Data 2-8
RediSTATION Operator Interface Data Mapping 2-4
Mapping RediSTATION Input Data 2-5
Mapping RediSTATION Output Data 2-6
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