CFC
Typical response times and maximum number of ticks of the CFC task levels:
Task Level Time (in ms) Ticks for Non-
Modular Devices
with CP100
Ticks for Modular
Devices with CP200
Ticks for Modular
Devices with CP300
Fast Event-
Triggered
< 1 500 500 1000
Event-Triggered
<10 12 367 12 757 14 702
Interlocking
<10 117 564 in total 121 537 in total 141 398 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 Directional overcurrent
protection, grounded electrical power system. The maximum number can be lower in case of extensive
protection applications.
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 Technical Data)
Table 12-6 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
12.74
Technical Data
12.74 CFC
1572 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
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