User-defined Functions (CFC)
Function Blocks and their Possible Allocation to the Priority Classes
Function Module Comments Task Level
MW_BEARB PLC1_BEARB PLC_BEARB SFS_BEARB
ABSVALUE Magnitude Calculation X – – –
ADD Addition X X X X
ALARM Alarm clock X X X X
AND AND - Gate X X X X
BLINK Flash block X X X X
BOOL_TO_CO Boolean to Control (conversion) – X X –
BOOL_TO_DI Boolean to Double Point
(conversion)
– X X X
BOOL_TO_IC Bool to Internal SI, Conversion – X X X
BUILD_DI Create Double Point Annuncia-
tion
– X X X
CMD_CANCEL Cancel command X X X X
CMD_CHAIN Switching Sequence – X X –
CMD_INF Command Information – – – X
COMPARE Measured value comparison X X X X
CONNECT Connection – X X X
COUNTER Counter X X X X
CV_GET_STATUS Information status of the
metered value, decoder
X X X X
D_FF D- Flipflop – X X X
D_FF_MEMO Status Memory for Restart X X X X
DI_GET_STATUS Information status double point
indication, decoder
X X X X
DI_SET_STATUS Double point indication with
status, encoder
X X X X
DI_TO_BOOL Double Point to Boolean
(conversion)
– X X X
DINT_TO_REAL DoubleInt after real, adapter X X X X
DIST_DECODE Double point indication with
status, decoder
X X X X
DIV Division X X X X
DM_DECODE Decode Double Point X X X X
DYN_OR Dynamic OR X X X X
LIVE_ZERO Live zero monitoring, nonlinear
characteristic
X – – –
LONG_TIMER Timer (max.1193h) X X X X
LOOP Feedback Loop X X X X
LOWER_SETPOINT Lower Limit X – – –
MUL Multiplication X X X X
MV_GET_STATUS Information status measured
value, decoder
X X X X
MV_SET_STATUS Measured value with status,
encoder
X X X X
NAND NAND - Gate X X X X
4.20
Technical Data
4.20 User-defined Functions (CFC)
456 SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016
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