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What This Chapter
Contains
About DeviceNetManager
Software
Polled I/O Structure
Allen-Bradley Replacements
How Communication Takes Place
and I/O Image Table Mapping with
the DeviceNet Adapter
In this chapter, we tell you about:
For information on
About DeviceNetManager Software. . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Polled I/O Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Adapter Input Status Word. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
System Throughput. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Mapping Data into the Image Table . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Frequency Input Module (1794-IJ2) Image Table Mapping. . . . . . . . . 5-3
Block Transfer Read Word Assignments . . . . . . . . . . . . . . . . . . 5-4
Word/Bit Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
DeviceNetManager software is a tool used to configure your FLEX I/O
DeviceNet adapter and its related modules. This software tool can be
connected to the adapter via the DeviceNet network.
You must understand how DeviceNetManager software works in order to
add a device to the network. Refer to the DeviceNetManager Software
User Manual, publication 1787-6.5.3.
Output data is received by the adapter in the order of the installed I/O
modules. The Output data for Slot 0 is received first, followed by the
Output data for Slot 1, and so on up to slot 7.
The first word of input data sent by the adapter is the Adapter Status
Word. This is followed by the input data from each slot, in the order of the
installed I/O modules. The Input data from Slot 0 is first after the status
word, followed by Input data from Slot 2, and so on up to slot 7.
DeviceNet Adapter
Read Data
Adapter Status
Slot 0 Input Data
Network READ
Slot 1 Input Data
Slot 7 Input Data
Write Data
Slot 0 Output Data
Slot 1 Output Data
Network WRITE
Slot 7 Output Data
Chapter
See page
Read
I/O Module
I/O Module
Slot 0
Slot 1
Write
Publication 1794-6.5.11 - November 1997
5
...
I/O Module
Slot 7
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