17. Appendix H
17.1. Important Functional Considerations
534 Experion PKS Series A Fieldbus Interface Module User's Guide R400
Honeywell July 2010
Function Indication Consideration
Schedule exceeds
Fieldbus Link Master
capable device's
predefined limits for
subschedules and/or
sequences.
Load errors identifying
subschedule problems.
Device icon turns yellow
(LM without schedule) or
red (bad communications).
Most Link Master capable devices can
only support one subschedule and
cannot support blocks that are running
two different macrocycles. If the
number of subschedules and/or
sequences in the current schedule
(backup LAS) exceed the Link Master
capable device's predefined limits, a
load of the device through Control
Builder will generate load errors
identifying subschedule problems. In
this case, you must reconfigure the
device to become a Basic one through
Control Builder, and restart the device
to initiate the change.
Changing Load
Destination (LD)
attributes.
The Load Destination
attribute is automatically
set to NOLOAD or LOAD
for manufacturer-specific
parameters. Users can
edit Load Destination
attributes for parameters
through the Vendor tab in
the Parameter Definition
Editor (PDE).
A NOLOAD attribute means that the
associated parameter will never be
loaded to or uploaded from the actual
device. A LOAD attribute means that
the associated parameter will be
loaded to the actual device unless
"Partial Load" is selected when
loading.
Do a Partial Load followed by an
upload and update to save and
preserve the pre-configured values in a
device. Future loads can then be full
loads (Partial Load not selected).
Alternatively, do a full load (Partial
Load is not selected) to load pre-
configure values in the Project copy
(Control Builder) to a device, but only if
the parameter LD attribute is LOAD.
Factory-set calibration parameters that
should not be overwritten should be set
to "NOLOAD".
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