Overview

The PLC library Tc2_Utilities contains function blocks and functions for calling TwinCAT system functions and operating system functions as well as various conversion functions.

Operating system functions

Name	Description
NT_Shutdown	Shutting down the operating system (shutdown).
NT_AbortShutdown	Interrupting the shutdown process.
NT_Reboot	Carrying out a restart of the operating system.
NT_GetTime	Reading the current local Windows system time.
NT_SetLocalTime	Setting the current local Windows system time.
NT_StartProcess	Starts a Windows application from the PLC.
NT_SetTimeToRTCTime	Synchronizing the local Windows system time with the real-time clock of the PC.
FB_RegQueryValue	Reading out values from the registry.
FB_RegSetValue	Writing values to the Registry.
FB_EnumFindFileEntry	Searches in a directory for a file or a subdirectory whose name is similar to the specified name. Any entries found can be read individually.
FB_EnumFindFileList	Searches in a directory for a file or a subdirectory whose name is similar to the specified name. The found entries can be read out in groups.
FB_GetAdaptersInfo	Reads network adapter information.
FB_GetHostName	Reads the host name of the local PC.
FB_GetHostAddrByName	Converts the host name into the (IPv4) Internet protocol network address.
FB_GetTimeZoneInformation	Reads the time zone configuration of the operating system.
FB_SetTimeZoneInformation	Sets the time zone configuration of the operating system.
FB_LocalSystemTime	Returns the local Windows system time and summer time/winter time info.

PLC functions

Name	Description
PLC_Reset	Resets the PLC.
PLC_Start	Starts the PLC.
PLC_Stop	Stops the PLC.
PLC_ReadSymInfo	Reading the symbol information of the PLC.
PLC_ReadSymInfoByName	Reading the symbol information of a PLC variable with the help of the symbol name.
PLC_ReadSymInfoByNameEx	Reading the symbol information of a PLC variable with the help of the symbol name. The comment will be truncated if the available buffer size is insufficient.
Profiler	Determining the execution time of the PLC code.
WritePersistentData	Saving the persistent data to the data storage device from the PLC program.
FB_WritePersistentData	Saving the persistent data to the data storage device from the PLC program (extended version).

Checksum/CRC functions

Name	Description
F_CheckSum16	Calculates the 16 bit checksum.
F_DATA_TO_CRC16_CCITT	Calculates CRC16-CCITT (cyclical redundancy check) of any data type.
F_BYTE_TO_CRC16_CCITT	Calculates CRC16-CCITT (cyclical redundancy check) of an individual data byte.

System functions

Name	Description
TC_Restart	Restart the TwinCAT system.
TC_Stop	Stop the TwinCAT system.
TC_Config	Switching TwinCAT system to CONFIG mode.
TC_CpuUsage	Determining CPU usage of the TwinCAT system.
TC_SysLatency	Determining the current and maximum latency time of a TwinCAT system.
GetRemotePCInfo	Reading router information via the configured remote PCs.
FB_GetLocalAmsNetId	Reading the AmsNetId of the local TwinCAT PC.
FB_GetRouterStatusInfo	Reading TwinCAT router status information.
FB_EnumRouteEntry	Reading router connection information.
FB_AddRouteEntry	Adding a new router connection.
FB_RemoveRouteEntry	Deleting an existing router connection.
ROUTETRANSPORT_TO_STRING	Converts the AMS message router transport layer ID into a string.
FB_GetDeviceIdentification	Reads the device ID.
FB_GetDeviceIdentificationEx	Reads the device ID. (Allows longer strings with hardware model and serial number.)
FB_GetLicences	Reads the valid and invalid TwinCAT licenses.
FB_GetSystemId	Reads the SystemID as GUID.
FB_GetVolumeId	Reads the SystemID and the Volume System ID.

Scope View functions

TwinCAT Scope View functions are not supported by TwinCAT 3.

Scope Server functions

Name	Description
FB_ScopeServerControl	Controls (start/save..) the Scope Server for data logging.

ADS Monitor functions

Name	Description
FB_AmsLogger	Start/stop AMS Logger from the PLC.

Converting functions

Name	Description
DT_TO_SYSTEMTIME	Converting DATE_AND_TIME to Windows system time structure.
DT_TO_FILETIME	Converting DATE_AND_TIME to Windows file time.
SYSTEMTIME_TO_DT	Converting Windows system time structure to DATE_AND_TIME.
SYSTEMTIME_TO_FILETIME	Converting Windows system time structure to file time.
SYSTEMTIME_TO_STRING	Converting Windows system time structure to string.
STRING_TO_SYSTEMTIME	Converting string to Windows system time structure.
FILETIME_TO_DT	Converting Windows file time to DATE_AND_TIME.
FILETIME_TO_SYSTEMTIME	Converting Windows file time to system time structure.
DEC_TO_BCD	Converting decimal numbers to BCD numbers.
BCD_TO_DEC	Converting BCD numbers to decimal numbers.
DEG_TO_RAD	Converting degree-angle to radian.
RAD_TO_DEG	Converting radian to degree-angle.
TIME_TO_OTSTRUCT	Converting TIME variable to a structure with resolved milliseconds, seconds, minutes etc.
OTSTRUCT_TO_TIME	Converting a structure with resolved milliseconds, seconds, minutes etc. to TIME variable.
F_SwapRealEx	Replaces by the Hi and Lo Word of a REAL variable.
BYTE_TO_LREALEX	Allows an explicit conversion of the type BYTE to a positive floating point number of the type LREAL.
DWORD_TO_LREALEX	Allows an explicit conversion of the type DWORD to a positive floating point number of the type LREAL.
UDINT_TO_LREALEX	Allows an explicit conversion of the type UDINT to a positive floating point number of the type LREAL.
UINT_TO_LREALEX	Allows an explicit conversion of the type UINT to a positive floating point number of the type LREAL.
ULINT_TO_ULARGE	Converts a 64 bit number of the type ULINT into a 64 bit number of the type T_ULARGE_INTEGER.
USINT_TO_LREALEX	Allows an explicit conversion of the type USINT to a positive floating point number of the type LREAL.
BYTEARR_TO_MAXSTRING	Converts byte array into a string.
MAXSTRING_TO_BYTEARR	Converts string into a byte array.
F_TranslateFileTimeBias	Converts UTC time into local time and vice versa (by bias).
FB_TzSpecificLocalTimeToFileTime	Converts continuous local time (file time format) into UTC time.
FB_TzSpecificLocalTimeToSystemTime	Converts continuous local time (structured system time format) into UTC time.
FB_FileTimeToTzSpecificLocalTime	Converts UTC time (file time format) into local time.
FB_SystemTimeToTzSpecificLocalTime	Converts UTC time (structured system time format) into local time.
HEXASCNIBBLE_TO_BYTE	Converts the ASCII code of a hexadecimal half-byte character into a decimal value.
HEXCHRNIBBLE_TO_BYTE	Converts a hexadecimal half-byte character into its decimal value.
GuidsEqualByVal	Compares two GUID values

STRING functions

Name	Description
LREAL_TO_FMTSTR	Converts a flowing point number into a string with the desired number of decimal places.
DWORD_TO_DECSTR	Converts a decimal number into a decimal string.
DWORD_TO_HEXSTR	Converts a decimal number into a hexadecimal string.
DWORD_TO_OCTSTR	Converts a decimal number into an octal string.
DWORD_TO_BINSTR	Converts a decimal number into a binary string.
LWORD_TO_DECSTR	Converts a decimal number into a decimal string.
LWORD_TO_HEXSTR	Converts a decimal number into a hexadecimal string.
LWORD_TO_OCTSTR	Converts a decimal number into an octal string.
LWORD_TO_BINSTR	Converts a decimal number into a binary string.
PVOID_TO_DECSTR	Converts an address (pointer) into a decimal string.
PVOID_TO_HEXSTR	Converts an address (pointer) into a hexadecimal string.
PVOID_TO_OCTSTR	Converts an address (pointer) into an octal string.
PVOID_TO_BINSTR	Converts an address (pointer) into a binary string.
PVOID_TO_STRING	Converts an address (pointer) into a string.
STRING_TO_PVOID	Converts a string into an address (pointer).
LINT_TO_DECSTR	Converts a signed decimal number (64 bit) into a decimal string.
DINT_TO_DECSTR	Converts a signed decimal number (32 bit) into a decimal string.
F_FormatArgToStr	Converts and formats a decimal number or a flowing point number into a string.
BYTE_TO_BINSTR	Converts a decimal number of the type byte into a binary string.
BYTE_TO_DECSTR	Converts a decimal number into a decimal string.
BYTE_TO_HEXSTR	Converts a decimal number into a hexadecimal string.
BYTE_TO_OCTSTR	Converts a decimal number into an octal string.
WORD_TO_BINSTR	Converts a decimal number of the type word into a binary string.
WORD_TO_DECSTR	Converts a decimal number of the type word into a decimal string.
WORD_TO_HEXSTR	Converts a decimal number of the type word into a hexadecimal string.
WORD_TO_OCTSTR	Converts a decimal number of the type word into an octal string.
FB_FormatString	Converts and formats up to 10 arguments (decimal or flowing point numbers).
FB_EnumStringNumbers	Searches a string for numbers.
F_ToUCase	Converts lowercase letters into uppercase letters in a string.
F_ToLCase	Converts uppercase letters into lowercase letters in a string.
F_LTrim	Removes spaces at the beginning of a string.
F_RTrim	Removes spaces at the end of a string.
DATA_TO_HEXSTR	Converts binary data into hexadecimal string.
HEXSTR_TO_DATA	Converts hexadecimal string to binary data.
GUID_TO_STRING	Converts a structured GUID variable into a GUID string variable.
GUID_TO_REGSTRING	Converts a structured GUID variable into a registry GUID string variable
REGSTRING_TO_GUID	Converts a registry GUID string variable into a structured GUID variable.

Extended STRING functions

Name	Description
CHAR_TO_WCHAR	Converts a character of the data type STRING into a character of the data type WSTRING (with null termination).
CONCAT2	Concatenates two strings of the data type STRING.
DELETE2	Removes nLen characters from a string, starting at position nPos.
F_StringIsASCII	Checks whether a string contains only ASCII characters (0x000 to 0x7F) and returns the number of ASCII characters.
FIND2	Finds a string, which may occur more than once, in another string.
FindAndDelete	Finds a string, which may occur more than once, in another string and removes it.
FindAndDeleteChar	Finds a character, which may occur more than once, in a string and removes it.
FindAndReplace	Finds a string, which may occur more than once, in another string and replaces it with another string.
FindAndReplaceChar	Finds a character, which may occur more than once, in a string and replaces it with another character.
INSERT2	Inserts a string into another string after position nPos.
LEN2	Returns the number of characters in a string.
REPLACE2	Replaces nLen characters of a string with another string, starting at position nPos.
sLiteral_TO_UTF8	Converts any character string of the data type STRING into a character string in UTF-8 format.
STRING_TO_UTF8	Converts any string of a variable of the data type STRING to a string in UTF-8 format.
STRING_TO_WSTRING2	Converts a variable of the data type STRING into a variable of the data type WSTRING.
STRNCPY	Copies the character string of a variable of the data type STRING and checks whether the character string was completely copied
UTF8_TO_STRING	Converts a string in UTF-8 format into a string of the data type STRING.
UTF8_TO_WSTRING	Converts a string in UTF-8 format into a string of the data type WSTRING.
UTF8Len	Returns the number of characters in a UTF-8 string.
WCHAR_TO_CHAR	Converts a variable of the data type WSTRING into a variable of the data type STRING (with null termination)
WCONCAT2	Concatenates two strings of the data type WSTRING of any length.
WLEN2	Returns the number of characters in a Unicode string of the data type WSTRING.
wsLiteral_TO_UTF8	Converts any character string of the data type WSTRING into a character string in UTF-8 format.
WSTRING_TO_STRING2	Converts a variable of the data type WSTRING into a variable of the data type STRING.
WSTRING_TO_UTF8	Converts a string of a variable of the data type WSTRING into a string in UTF-8 format.
WSTRNCPY	Copies a character string of a variable of the data type WSTRING and checks whether the character string was completely copied.

64 bit functions (unsigned)

Name	Description
ULARGE_INTEGER	Initializes/sets a 64 bit number.
UInt64Add64	Adds two 64 bit numbers.
UInt64Add64Ex	Adds two 64 bit numbers (with Overflow check).
UInt64Sub64	Subtracts two 64 bit numbers.
UInt64Cmp64	Compares two 64 bit numbers.
UInt32x32To64	Multiplies two 32 bit numbers. The result is a 64 bit number.
UInt64Mul64	Multiplies two 64 bit numbers. The result is a 64 bit number.
UInt64Mul64Ex	Multiplies two 64 bit numbers. The result is a 64 bit number (with overflow check).
UInt64Div64	Division of two 64 bit numbers.
UInt64Div64Ex	Division of two 64 bit numbers (with remainder).
Uint64Div16Ex	Division of one 64 bit number by a 16 bit number. The result is a 64 bit number.
UInt64Mod64	Modulo division of two 64 bit numbers.
UInt64And	Bit by bit AND of two 64 bit numbers.
UInt64Or	Bit by bit OR of two 64 bit numbers.
UInt64Not	Bit by bit NOT of one 64 bit number.
UInt64Xor	Bit by bit XOR of two 64 bit numbers.
UInt64Rol	Bit by bit left rotation of one 64 bit number.
UInt64Ror	Bit by bit right rotation of one 64 bit number.
UInt64Shl	Bit by bit left shift of one 64 bit number.
UInt64Shr	Bit by bit right shift of one 64 bit number.
UInt64Min	Minimum function
UInt64Max	Maximum function
UInt64Limit	Limitation
UInt64isZero	Checks whether the value of the 64 bit number is zero.
UINT64_TO_STRING	Converts 64 bit number into a string.
UINT64_TO_LREAL	Converts 64 bit number into a LREAL.
STRING_TO_UINT64	Converts a STRING into a 64 bit number.
LREAL_TO_UINT64	Converts LREAL into a 64 bit number.
LWORD_TO_ULARGE	Converts a 64 bit number of the type LWORD into a 64 bit number of the type T_ULARGE_INTEGER.
ULARGE_TO_LWORD	Converts a 64 bit number of the type T_ULARGE_INTEGER into a 64 bit number of the type LWORD.
ULARGE_TO_ULINT	Converts a 64 bit number of the type T_ULARGE_INTEGER into a 64 bit number ULINT.

64 bit functions (signed)

Name	Description
LARGE_INTEGER	Initializes/sets a 64 bit number.
Int64Add64	Adds two 64 bit numbers.
Int64Add64Ex	Adds two 64 bit numbers (with Overflow check).
Int64Sub64	Subtracts two 64 bit numbers.
Int64Cmp64	Compares two 64 bit numbers.
Int64Div64Ex	Division of two 64 bit numbers (with remainder).
Int64Not	Bit by bit NOT of one 64 bit number.
Int64isZero	Checks whether the value of the 64 bit number is zero.
Int64Negate	Negates a 64 bit number.
INT64_TO_LREAL	Converts 64 bit number into a LREAL.
LREAL_TO_INT64	Converts LREAL into a 64 bit number.
LARGE_TO_ULARGE	Converts a signed 64 bit number into an unsigned 64 bit number.
ULARGE_TO_LARGE	Converts an unsigned 64 bit number into a signed 64 bit number.
LARGE_TO_LINT	Converts a signed 64 bit number of the type LINT into a signed 64 bit number of the type T_LARGE_INTEGER.
LINT_TO_LARGE	Converts a signed 64 bit number of the type T_LARGE_INTEGER into a signed 64 bit number of the type LINT.

16 bit fixed point number functions (signed)

Name	Description
FIX16Add	Adds two fixed-point numbers.
FIX16Align	Changes the resolution of a fixed-point number.
FIX16Sub	Subtracts two fixed-point numbers.
FIX16Div	Divides two fixed-point numbers.
FIX16Mul	Multiplies two fixed-point numbers.
LREAL_TO_FIX16	Converts LREAL into a fixed-point number.
WORD_TO_FIX16	Converts WORD into a fixed-point number.
FIX16_TO_LREAL	Converts a fixed-point number into LREAL.
FIX16_TO_WORD	Converts a fixed-point number into WORD.

Byte order converting functions

Name	Description
HOST_TO_BE16	Host-to-network converting (16 bit number)
HOST_TO_BE32	Host-to-network converting (32 bit number)
HOST_TO_BE64	Host-to-network converting (64 bit number, „legacy“-type: T_ULARGE_INTEGER)
HOST_TO_BE64EX	Host-to-network converting (64 bit number, „native“-type: LWORD)
HOST_TO_BE128	Host-to-network converting (128 bit number, „legacy“-type: T_UHUGE_INTEGER)
BE16_TO_HOST	Host-to-network converting (16 bit number)
BE32_TO_HOST	Network-to-host converting (32 number)
BE64_TO_HOST	Network-to-host converting (64 bit number, „legacy“-type: T_ULARGE_INTEGER)
BE64_TO_HOSTEX	Network-to-host converting (64 bit number, „native“-type: LWORD)
BE128_TO_HOST	Network-to-host converting (128 bit number, „legacy“-type: T_UHUGE_INTEGER)

FLOAT functions

Name	Description
BOOL_TO_FLOAT	Converts a variable of the type BOOL to a variable of the type LREAL.
DINT_TO_FLOAT	Converts a variable of the type DINT to a variable of the type FLOAT.
FLOAT_TO_BOOL	Converts a variable of the type FLOAT to a variable of the type BOOL.
FLOAT_TO_DINT	Converts a variable of the type FLOAT to a variable of the type DINT.
FLOAT_TO_INT	Converts a variable of the type FLOAT to a variable of the type INT.
FLOAT_TO_SINT	Converts a variable of the type FLOAT to a variable of the type SINT.
FLOAT_TO_STRING	Converts a variable of the type FLOAT to a variable of the type STRING.
FLOAT_TO_TIME	Converts a variable of the type FLOAT to a variable of the type TIME.
FLOAT_TO_UDINT	Converts a variable of the type FLOAT to a variable of the type UDINT.
FLOAT_TO_UINT	Converts a variable of the type FLOAT to a variable of the type UINT.
INT_TO_FLOAT	Converts a variable of the type INT to a variable of the type FLOAT.
SINT_TO_FLOAT	Converts a variable of the type SINT to a variable of the type FLOAT.
TIME_TO_FLOAT	Converts a variable of the type TIME to a variable of the type FLOAT.
UDINT_TO_FLOAT	Converts a variable of the type UDINT to a variable of the type FLOAT.
UINT_TO_FLOAT	Converts a variable of the type UINT to a variable of the type FLOAT.
LrealIsFinite	Returns TRUE, when the argument of the type LREAL has a finite value.
LrealIsNaN	Returns TRUE, when the argument of the type LREAL has an undefined value (NaN).
RealIsFinite	Returns TRUE, when the argument of the type REAL has a finite value.
RealIsNaN	Returns TRUE, when the argument of the type REAL has an undefined value (NaN).

	Obsolete function This function is obsolete. Please use the functions "..._TO_LREAL" or "LREAL_TO_..." instead, which give the same result.

LCOMPLEX functions

Name	Description
LcomplexIsNaN	Returns TRUE, when the argument of the type LCOMPLEX has an undefined value (NaN).
LcomplexAbs	Returns the absolute value of the complex number transferred.

P[TYPE]_TO_[TYPE] converting functions

Name	Description
PBOOL_TO_BOOL	Returns the content of a BOOL pointer variable.
PBYTE_TO_BYTE	Returns the content of a BYTE pointer variable.
PDATE_TO_DATE	Returns the content of a DATE pointer variable.
PDINT_TO_DINT	Returns the content of a DINT pointer variable.
PDT_TO_TO_DT	Returns the content of a DT pointer variable.
PDWORD_TO_DWORD	Returns the content of a DWORD pointer variable.
PHUGE_TO_HUGE	Returns the content of a T_HUGE_INTEGER pointer variable.
PINT_TO_INT	Returns the content of an INT pointer variable.
PLARGE_TO_LARGE	Returns the content of a T_LARGE_INTEGER pointer variable.
PLINT_TO_LINT	Returns the content of a LINT pointer variable.
PLREAL_TO_TO_LREAL	Returns the content of a LREAL pointer variable.
PLWORD_TO_LWORD	Returns the content of a LWORD pointer variable.
PMAXSTRING_TO_MAXSTRING	Returns the content of a T_MaxString pointer variable.
PREAL_TO_REAL	Returns the content of a REAL pointer variable.
PSINT_TO_SINT	Returns the content of a SINT pointer variable.
PSTRING_TO_STRING	Returns the content of a STRING pointer variable.
PTIME_TO_TIME	Returns the content of a TIME pointer variable.
PTOD_TO_TOD	Returns the content of a TOD pointer variable.
PUDINT_TO_UDINT	Returns the content of an UDINT pointer variable.
PUHUGE_TO_UHUGE	Returns the content of a T_UHUGE_INTEGER pointer variable.
PUINT_TO_UINT	Returns the content of an UINT pointer variable.
PULARGE_TO_ULARGE	Returns the content of a T_ULARGE_INTEGER pointer variable.
PULINT_TO_ULINT	Returns the content of an ULINT pointer variable.
PUSINT_TO_USINT	Returns the content of an USINT pointer variable.
PWORD_TO_WORD	Returns the content of a WORD pointer variable.
PUINT64_TO_UINT64	Returns the content of a T_ULARGE_INTEGER pointer variable.

T_Arg help functions

Name	Description
F_ARGCMP	Compares two variables of the type T_Arg
F_ARGCPY	Copies the value of a variable of the type T_Arg to another variable and returns the number of successfully copied data bytes.
F_ARGISZERO	Returns TRUE if one of the T_Arg member variables has the value zero or was not initialised.
F_BIGTYPE	Returns information on a struct or array variable in a structure of the type T_Arg.
F_BOOL	Returns information on a BOOL variable in a structure of the type T_Arg.
F_BYTE	Returns information on a BYTE variable in a structure of the type T_Arg.
F_DINT	Returns information on a DINT variable in a structure of the type T_Arg.
F_DWORD	Returns information on a DWORD variable in a structure of the type T_Arg.
F_HUGE	Returns information on a T_HUGE_INTEGER variable in a structure of the type T_Arg.
F_INT	Returns information on an INT variable in a structure of the type T_Arg.
F_LARGE	Returns information on a T_LARGE_INTEGER variable in a structure of the type T_Arg.
F_LINT	Returns information on a LINT variable in a structure of the type T_Arg.
F_LREAL	Returns information on a LREAL variable in a structure of the type T_Arg.
F_LWORD	Returns information on a LWORD variable in a structure of the type T_Arg.
F_REAL	Returns information on a REAL variable in a structure of the type T_Arg.
F_SINT	Returns information on a SINT variable in a structure of the type T_Arg.
F_STRING	Returns information on a T_MaxString variable in a structure of the type T_Arg.
F_UDINT	Returns information on an UDINT variable in a structure of the type T_Arg.
F_UHUGE	Returns information on a T_UHUGE_INTEGER variable in a structure of the type T_Arg.
F_UINT	Returns information on an UINT variable in a structure of the type T_Arg.
F_ULARGE	Returns information on a T_ULARGE_INTEGER variable in a structure of the type T_Arg.
F_ULINT	Returns information on an ULINT variable in a structure of the type T_Arg.
F_USINT	Returns information on an USINT variable in a structure of the type T_Arg.
F_WORD	Returns information on a WORD variable in a structure of the type T_Arg.
F_PVOID	Returns information on a PVOID variable in a structure of the type T_Arg.

CSV format functions

Name	Description
CSVFIELD_TO_STRING	Converts the value of a string with a data field in CSV format into an PLC string variable.
STRING_TO_CSVFIELD	Converts the value of a PLC string variable into a string with a data field in CSV format.
CSVFIELD_TO_ARG	Converts a byte buffer with a data field in CSV format into a value of a random PLC variable.
ARG_TO_CSVFIELD	Converts the value of a random PLC variable into a byte buffer with a data field in CSV format.
FB_CSVMemBufferReader	Splits data sets in CSV format which are in a byte buffer into individual data fields.
FB_CSVMemBufferWriter	Generates individual or several data sets in a byte buffer from individual data fields

Licensing functions

Name	Description
FB_LicFileGetStorageInfo	Reads the StorageInfo of the license dongle and the file directory.
FB_LicFileCreate	Creates a file on the license dongle.
FB_LicFileDelete	Deletes a file from the license dongle.
FB_LicFileRead	Reads a file from the license dongle to a buffer.
FB_LicFileCopyToDongle	Copies a file from the hard disk to the license dongle.
FB_LicFileCopyFromDongle	Copies a file from the license dongle to the hard disk.
FB_CheckLicense	Determines the TwinCAT 3 license status for a given license ID.
FB_GetDongleSystemId	Reads the system ID and the volume ID of the TwinCAT 3 license dongle as GUID.
FB_GetLicenseDongle	Determines the number of connected license dongles and returns address and status.
FB_GetLicenses	Reads the valid and invalid TwinCAT licenses.
FB_GetLicensesEx	Determines the status of all TwinCAT 3 licenses and OEM licenses.

Other functions

Name	Description
FB_BasicPID	Simple PID controller
F_GetVersionTcUtilities	Reading version information of the library.
IsFinite	Verifies the formatting of a floating point number in accordance with the IEEE.
F_YearIsLeapYear	Determines whether a year is a leap year.
F_GetMaxMonthDays	Determines the maximum number of days in a month.
F_GetDOYOfYearMonthDay	Determines the number of the day in the year.
F_GetMonthOfDOY	Determines the month based on the day number in the year.
F_GetDayOfWeek	Determines the number of the weekday.
F_GetWeekOfTheYear	Determines the calendar week.
F_GetDayOfMonthEx	Determines the date of the first, second etc. weekday in a specified month and year.
F_GetWeekOfTheYear	Returns the number of the calendar week for a predefined date.
RTC	"Software"-RTC (Real Time Clock)
RTC_EX	"Software"-RTC (Real Time Clock)
RTC_EX2	"Software"-RTC (Real Time Clock)
FB_FileRingBuffer	Writes/reads data sets to or from the file (FIFO).
FB_MemRingBuffer	Writes/reads data sets to or from a buffer variable (FIFO).
FB_MemRingBufferEx	Writes/reads data sets to or from a buffer variable (FIFO).
FB_StringRingBuffer	Writes/reads strings to or from a buffer variable (FIFO).
FB_MemStackBuffer	Writes/reads data sets to or from a buffer variable (LIFO).
FB_MemBufferMerge	Merges individual small data segments to one larger data segment.
FB_MemBufferSplit	Splits a memory area (data buffer) into several smaller segments.
FB_HashTableCtrl, F_CreateHashTableHnd	Simple hash table.
FB_LinkedListCtrl, F_CreateLinkedListHnd	Simple linked list (double linked).
DCF77_TIME	A simple DCF77 decoder.
DCF77_TIME_EX	DCF77 decoder with plausibility check of two consecutive telegrams and time zone information.