Rockwell Automation 1794-IF4I, -OF4I, IF2XOF2I, -IF4IXT, -IF4ICFXT, -OF4IXT, IF2XOF2IXT FLEX I/O Isolated Analog Modules - Manual (Page 77)

77 Publication 1794-6.5.8 - January 2010
Chapter
5
Communication and I/O Image Table Mapping
with the DeviceNet/ControlNet Adapter
Chapter Objectives In this chapter, you will read about:
•
RSNetWorx and RSLogix software
•
I/O structure
•
image table mapping
•
factory defaults
About RSNetWorx and
RSLogix RSNetWorx is a software tool used in conjunction with RSLogix to
configure your FLEX I/O DeviceNet or ControlNetadapter and its
related modules. This software tool can be connected to the adapter
via the DeviceNet network. The Ethernet IP adapter only requires
RSLogix to configure the modules.
Polled I/O Structure 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 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 to slot 7.
Adapter Status
Slot 0 Input Data
Slot 1 Input Data
Slot 7 Input Data
Slot 0 Output Data
Slot 1 Output Data
Slot 7 Output Data
Read Data
Write Data
Network READ
Network WRITE
DeviceNet Adapter
Slot 0
I/O Module
Read
Write Slot 1
I/O Module
Slot 7
I/O Module
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