CFC
Typical response times and maximum number of ticks of the CFC task levels:
Task Level Time (in ms) Ticks CP300
High priority Event-trig-
gered
<1 1000
Event-triggered
<10 15 359
Low priority Event-trig-
gered
<10 149 603 in total
Measurement
250
The times describe the response time of a typical CFC chart at the respective task level. The maximum number
of ticks applies to a typical load for the device based on the application template Basics.
The task level Measurement runs in cycles every 500 ms. All other task levels are event-triggered.
In order to estimate the tick consumption of a CFC chart, you can use the following formula:
T
Chart
= 5 ∙ n
Inp
+ 5 ∙ n
Outp
+ T
TLev
+ ∑
i
T
int
+ ∑
j
T
Block
Where:
n
Inp
Number of indications routed as input in the CFC chart
n
Outp
Number of indications routed as output in the CFC chart
T
TLev
101 Ticks in Fast Event-Triggered level
104 Ticks in Event-Triggered level
54 Ticks in Measurement level
74 Ticks in Interlocking level
T
int
Number of internal connections between 2 CFC blocks in one chart
T
Block
Used ticks per CFC block (see Table 11-4)
Table 11-4 Ticks of the Individual CFC Blocks
Element Ticks
ABS_D 2.3
ABS_R 1.5
ACOS_R 6.9
ADD_D4 3.4
ADD_R4 3.3
ADD_XMV 6.4
ALARM 1.8
AND_SPS 1.1
AND10 2.9
APC_DEF 1.2
APC_EXE 1.0
APC_INFO 3.9
ASIN_R 1.3
ATAN_R 1.2
BLINK 1.3
BOOL_CNT 2.0
BOOL_INT 1.5
BSC_DEF 1.3
BSC_EXE 1.1
11.40
Technical Data
11.40 CFC
994 SIPROTEC 5, Low-Impedance Busbar Protection, Manual
C53000-G5040-C019-C, Edition 04.2021
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