Rockwell-automation 1797-OE8H FLEX Ex HART Analog Modules User Manual Manual de usuario Pagina 75

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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 4-7
Possible causes for an I/O module fault are:
Transmission errors on the FLEX Ex backplane
Failed module
Module removed from its terminal base
Incorrect module inserted in a slot position
Slot is empty
Slot contains a non-discrete module
Fault State Data
The FLEX Ex HART modules provides storage for alternate module output
data during communication faults or controller idle state. This fault state data
assures that a known output will be applied to the output devices during the
previously mentioned modes.
The controller or scanner software must include the means to specify this fault
state data for each module. If applicable, this data is sent in the configuration
block, see Image Table Mapping on page 2-12.
Device Actions
Device actions include:
Communication fault behavior
Idle state behavior
Input data behavior upon module removal
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