Allen-Bradley ControlLogix Manual de usuario Pagina 142

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142 Rockwell Automation Publication 1756-UM001O-EN-P - October 2014
Chapter 8 I/O Modules
Figure 24 - Data Update Flowchart
Input or Output Data?
Input
Output
COS for any point on the Module?
Data is sent to the backplane at the RPI.
Remote or Local?
Analog
No
Yes
Data is sent to the backplane at the RPI and at
the end of each task.
Data is sent to the backplane at the RPI and at
the change of a specified point.
Data is sent to the backplane at the RTS
and RPI.
Data is sent to the backplane at the
RTS.
Analog or Digital?
Analog
Digital
Local
Remote
Digital
Over a ControlNet network, remote data is sent at the actual packet interval.
Over an EtherNet/IP network, remote data is usually sent close to the RPI.
Yes
No
RTS RPI?
Analog or Digital?
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