Siemens siprotec 7SA6 User Manual page 162

Configuration
Table 5-4 Selection guide for function modules and
Function Modules
ABSVALUE Magnitude calculation
AND AND-gate
BOOL_TO_CO Boolean to control, conversion
BOOL_TO_DI Boolean to double point,
conversion
BOOL_TO_IC Boolean to internal single
point, conversion
BUILD_DI Create double point
annunciation
CMD_INF Test
5-38
Figure 5-34 Establishing the
Within the Run Sequence menu, select (GLW, and then 3UHGHFHVVRU IRU
,QVWDOODWLRQ, to ensure that the function modules selected from the library will be
implemented into the desired task level (Figure 5-35).
Figure 5-35 Assignment of function modules to the selected
The proper assignment is important for several reasons. For example, if interlocking
logic were to be set up in the measured values task level, indications would constantly
be created by the cyclical processing, filling the buffer unnecessarily. On the other
hand, the interlocking condition at the moment of a switching operation may not be
processed at the right time, since measured value processing is done cyclically every
600 ms.
Description
task level
task level
s
Run-Time Level
MW_BEARB PLC1_BEARB
Meter processing Slow PLC
X –
– X
– X
– X
X
– X
– –
task level
PLC_BEARB SFS_BEARB
Fast PLC Interlocking
– –
X X
X –
X X
X X
X X
– X
7SA6 Manual
C53000-G1176-C133-1