User Manual

Working with Projects
Shape Comment
Shape Notsupported
Solidpolygon Thegraphicalcontrolwillbeimportedbut
needstobereconfigured.
2.4 OptimizingPerformance
The following section presents a couple of issues to consider in order to optimize
the iX Developer project. Some parts are related to the communication driver;
other parts concern CPU load and flash operations.
2.4.1 CommunicationPerformance
SignalTypes
Tags used for driver communication can be static or dynamic. These are updated
in different m anners.
StaticTags
Static tags are updated continuously, even if they are not currently shown on the
panel display.
Additionally, the operator panel reads the following items continuously:
• Alarm tags
• Data logger tags
• Multiple languages tags
• Controller tags with value change events
The communication time is not affected by the following:
• Alarm messages
• Schedulers
• Tags linked to function keys
DynamicTags
Dynamictagsareupdatedonlywhentheyarepresentedonthedisplay. Ananalog
numeric object serves as an example of when a dynamic tag is used.
2.4.2 C ommunicationDesign
This section describ
es how tags are read and how the reading can be optimized to
make the communica
tion between the operator panel and the controller fast and
efficient.
KeepingTagsinConsecutiveOrder
Define controller tags consecutively, for example M0.0-M11.7. If the tags are
spread (e.g. I0.4, Q30.0, M45.3 etc.) a complete update will take longer time.
The number of tags in each package depends on the used driver and information
about this can be found in the driver help file.
BeijerElectronics, MAEN831P
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