Siemens 7SJ82, Manual

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The areas named in the table are listed in descending order of real time requirements. If a warning appears to
the effect that the guaranteed response times may be exceeded in an area, you may be able to return to the
permitted area by taking the following measures:
•
Reduce the functional scope in the marked area (red exclamation mark)
•
Reduce the functional scope in another area with higher real time requirements
When you have reduced the application, check the display in resource consumption! If a function or state has
been switched off, it will continue to represent a load for the area. If you do not need the function or stage,
delete it rather than switching it off.
Use the general Circuit breaker function group only in the following cases:
•
Interaction with a protection-function group is essential.
That is, operate indications of protection functions cause the circuit breaker assigned to the Circuit
breaker function group to be switched off.
•
You want to use functions such as the automatic reclosing function or circuit-breaker failure protection in
the Circuit breaker function group.
If a circuit breaker is only to be modeled for control purposes, use the Circuit breaker [state only] function
group.
Function Points
When you order a SIPROTEC 5 device, you are also ordering a function-points account for use of additional
functions.
The following figure illustrates consumption of function points in the current application with respect to the
existing function-points account.
[scfpunkt-141210-01, 1, en_US]
Figure 9-2 Resource Overview: Function-Points Consumption
The remaining white bar shows the function points that have not yet been used up by your configuration. The
number of function points available in a device depends on the device purchase order (position 20 of the
product code). You can also order function points subsequently, and so increase the function-points account
for the device.
i
i
NOTE
Find out the function-points requirement for the desired application before ordering the device. For this,
you can use the device configurator.
CFC Resources
Task Levels of the CFC Function
A CFC chart, and thus the configured CFC function, runs in the SIPROTEC 5 device on exactly one of the 4 task
levels. The individual task levels differ, on the one hand, in the priority of processing tasks and, on the other,
in the cyclic or event-triggered processing of the CFC charts.
You can select between the following task levels:
9.2.2
9.2.3
Supervision Functions
9.2 Resource-Consumption Supervision
SIPROTEC 5, Overcurrent Protection, Manual 1241
C53000-G5040-C017-8, Edition 07.2017