you
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in this video you will learn how to add
configure and monitor expansion modules
first you have to configure one
expansion bus s can master by a drag and
drop you can add the expansion to the
bus addresses from 1 to 1 and 22 are
possible but must be aligned with dip
switches on the expansion the first 8
modules can be addressed settings which
4 to 6 which is an offset to the modules
base address 18 controllers without
trailing I and 14 expansions are not
isolated in terms of power supply in
serial 914 controllers are always
isolated with an isolated controller and
signal power supply connector and to one
of the expansion modules when having
separate power supplies the groups must
be connected by a ground as well
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or not isolated controllers do not
connect ground separate power supply
groups must be connected by our ground
even if controller is not isolated
in the subsections of the expansion we
have to define the physical module type
variables for expansions are defined in
i/o mapping field
with a digital i/o section you can then
assign the digital field variables
analog outputs are assigned at the
beginning of the analog i/o section
within advanced settings the
configuration of the analog output can
be defined
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you
next to the outputs analog inputs can be
configured and field variables assigned
please be aware that analog inputs must
be configured in pairs following a truth
table
configure in pairs not allowed will lead
to compile error
to use faster to take inputs 1 & 2 for
counter or frequency status variable of
type double word must be defined to
optimize the Refresh period of the FDI
you can specify the scan period within
advanced settings
in programming the defined field
variables are available in exceeded
variables IO mapping the monitoring of
expansion node presence and status is
possible by her peripheral target
variables
this peripheral status holds false for
notes being connected
please note an offset of two to the note
address to monitor the correct status
element more detailed status information
can be obtained by this can open note
status where the offset of two applies
as well
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