ABB REF 54 Series Technical Reference Manual page 22

5() B

22
)HHGHU 7HUPLQDO
Technical Reference Manual, General
6WDQGDUG IXQFWLRQV
Standard functions are used for logics such as interlocking, alarming and control
sequencing. The use of logic functions is not limited and the functions can be
interconnected with each other as well as with protection, measurement, power
quality, control, condition monitoring and general functions. In addition, the digital
inputs and outputs as well as LON inputs and outputs can be connected to standard
functions by using the Relay Configuration Tool.
The standard function blocks are documented on the CD-ROM "Technical
descriptions of Functions" (1MRS750889-MCD).
7DEOH  6WDQGDUG IXQFWLRQV DYDLODEOH IRU WKH 5() B
)XQFWLRQ 'HVFULSWLRQ
ABS Absolute value
ACOS Principal arc cosine
ADD Extensible adder
AND Extensible AND connection
ASIN Principal arc sine
ATAN Principal arc tangent
BITGET Get one bit
BITSET Set one bit
BOOL_TO_* Type conversion from BOOL to WORD / USINT / UINT / UDINT /
SINT / REAL / INT / DWORD / DINT / BYTE
BOOL2INT Type conversion from BOOL inputs to INT output
BYTE_TO_* Type conversion from BYTE to WORD / DWORD
COMH Hysteresis comparator
COS Cosine in radians
CTD Down-counter
CTUD Up-down counter
CTU Up-counter
DATE_TO_UDINT Type conversion from DATE to UDINT
DINT_TO_* Type conversion from DINT to SINT / REAL / INT
DIV Divider
DWORD_TO_* Type conversion from DWORD to WORD / BYTE
EQ Extensible comparison to equal
EXP Natural exponential
EXPT Exponentiation
F_TRIG Falling edge detector
GE Extensible comparison to greater or equal
GT Extensible comparison to greater
INT_TO_* Type conversion from INT to REAL / DINT
INT2BOOL Type conversion from INT input to BOOL outputs
LE Extensible comparison to less or equal
LIMIT Limitation
LN Natural logarithm
LOG Logarithm base 10
LT Extensible comparison to less
MAX Extensible maximum
MIN Extensible minimum
MOD Modulo
1MRS750527-MUM