Rockwell-automation 1797-OE8H FLEX Ex HART Analog Modules User Manual Manual de usuario Pagina 71

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Publication 1797-6.5.3 - March 2006
Input, Output and Configuration Files for the Analog I/O Modules on the ControlNet Network 4-3
Communication Over the
FLEX Ex Backplane
One 1797-ACNR15/B ControlNet Ex adapter can interface up to eight
terminal base units with installed FLEX Ex modules, forming a FLEX Ex
system of up to eight slots.
The adapter communicates to other network system components (typically
one or more controllers or scanners, and/or programming terminals) over the
ControlNet network. The adapter communicates with its I/O modules over
the FLEX Ex backplane.
Configuration data is not continuously updated to the module.
Scheduled Data Transfer
Scheduled data transfer:
is continuous.
is asynchronous to the controller program scan.
occurs at the actual rate displayed in the Actual Packet Interval field on
the programming software ControlNet I/O mapping (monitor) dialog
I/O Module I/O ModuleI/O Module
Configuration Configuration Configuration
Inputs Inputs Inputs
Status
Outputs
StatusStatus
OutputsOutputs
Read
Words
Write
Words
0
X
Slot 0 Slot 1 Slot 7
Network
ControlNet Ex
Adapter
Read
Write
41626
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