S7 Library Functions

I couldn't find a complete listing of all the function blocks in the standard Siemens S7 Libraries so I made one myself. It helps me get a better overview of what is available. The complete listing is also available as an Excel spreadsheet so you can sort or adjust to your needs.

System Function Blocks

Number	Name	Family	Description
SFB 0	CTU	IEC_TC	Count Up
SFB 1	CTD	IEC_TC	Count Down
SFB 2	CTUD	IEC_TC	Count Up/Down
SFB 3	TP	IEC_TC	Generate a Pulse
SFB 4	TON	IEC_TC	Generate an On Delay
SFB 5	TOF	IEC_TC	Generate an Off Delay
SFB 8	USEND	COM_FUNC	Uncoordinated Sending of Data
SFB 9	URCV	COM_FUNC	Uncoordinated Receiving of Data
SFB 12	BSEND	COM_FUNC	Sending Segmented Data
SFB 13	BRCV	COM_FUNC	Receiving Segmented Data
SFB 14	GET	COM_FUNC	Read Data from a Remote CPU
SFB 15	PUT	COM_FUNC	Write Data to a Remote CPU
SFB 16	PRINT	COM_FUNC	Send Data to Printer
SFB 19	START	COM_FUNC	Initiate a Warm or Cold Restart on a Remote Device
SFB 20	STOP	COM_FUNC	Changing a Remote Device to the STOP State
SFB 21	RESUME	COM_FUNC	Initiate a Hot Restart on a Remote Device
SFB 22	STATUS	COM_FUNC	Query the Status of a Remote Partner
SFB 23	USTATUS	COM_FUNC	Receive the Status of a Remote Device
SFB 29	HS_COUNT	COUNTERS	Counter (high-speed counter, integrated function) (only exist on the CPU 312 IFM and CPU 314 IFM)
SFB 30	FREQ_MES	COUNTERS	Frequency Meter (frequency meter, integrated function (only exist on the CPU 312 IFM and CPU 314 IFM)
SFB 31	NOTIFY_8P	COM_FUNC	Generating block related messages without acknowledgement indication
SFB 32	DRUM	TIMERS	Implement a Sequencer
SFB 33	ALARM	COM_FUNC	Generate Block-Related Messages with Acknowledgment Display
SFB 34	ALARM_8	COM_FUNC	Generate Block-Related Messages without Values for 8 Signals
SFB 35	ALARM_8P	COM_FUNC	Generate Block-Related Messages with Values for 8 Signals
SFB 36	NOTIFY	COM_FUNC	Generate Block-Related Messages without Acknowledgment Display
SFB 37	AR_SEND	COM_FUNC	Send Archive Data
SFB 38	HSC_A_B	COUNTERS	Counter A/B (integrated function) (only exist on the CPU 314 IFM)
SFB 39	POS	ICONT	Position (integrated function) (only exist on the CPU 314 IFM)
SFB 41	CONT_C	ICONT	Continuous Control (only exist on the CPU 314 IFM)
SFB 42	CONT_S	ICONT	Step Control (only exist on the CPU 314 IFM)
SFB 43	PULSEGEN	ICONT	Pulse Generation (only exist on the CPU 314 IFM)
SFB 44	ANALOG	TEC_FUNC	Positioning with Analog Output (only exist on the S7-300C CPUs)
SFB 46	DIGITAL	TEC_FUNC	Positioning with Digital Output (only exist on the S7-300C CPUs)
SFB 47	COUNT	TEC_FUNC	Controlling the Counter (only exist on the S7-300C CPUs)
SFB 48	FREQUENC	TEC_FUNC	Controlling the Frequency Measurement (only exist on the S7-300C CPUs)
SFB 49	PULSE	TEC_FUNC	Controlling Pulse Width Modulation (only exist on the S7-300C CPUs)
SFB 52	RDREC	DP	Reading a Data Record
SFB 53	WRREC	DP	Writing a Data Record
SFB 54	RALRM	DP	Receiving an Interrupt
SFB 60	SEND_PTP	TEC_FUNC	Sending Data (ASCII, 3964(R)) (only exist on the S7-300C CPUs)
SFB 61	RECV_PTP	TEC_FUNC	Receiving Data (ASCII, 3964(R)) (only exist on the S7-300C CPUs)
SFB 62	RES_RECV	TEC_FUNC	Deleting the Receive Buffer (ASCII, 3964(R)) (only exist on the S7-300C CPUs)
SFB 63	SEND_RK	TEC_FUNC	Sending Data (RK 512) (only exist on the S7-300C CPUs)
SFB 64	FETCH_RK	TEC_FUNC	Fetching Data (RK 512) (only exist on the S7-300C CPUs)
SFB 65	SERVE_RK	TEC_FUNC	Receiving and Providing Data (RK 512) (only exist on the S7-300C CPUs)
SFB 75	SALRM	DP	Send interrupt to DP master
SFB 81	RD_DPAR	IO_FUNCT	Read Predefined Parameter

System Function Calls

Number	Name	Family	Description
SFC 0	SET_CLK	CLK_FUNC	Set System Clock
SFC 1	READ_CLK	CLK_FUNC	Read System Clock
SFC 2	SET_RTM	CLK_FUNC	Set Run-time Meter
SFC 3	CTRL_RTM	CLK_FUNC	Start/Stop Run-time Meter
SFC 4	READ_RTM	CLK_FUNC	Read Run-time Meter
SFC 5	GADR_LGC	IO_FUNCT	Query Logical Address of a Channel
SFC 6	RD_SINFO	DB_FUNCT	Read OB Start Information
SFC 7	DP_PRAL	DP	Trigger a Hardware Interrupt on the DP Master
SFC 9	EN_MSG	COM_FUNC	Enable Block-Related, Symbol-Related and Group Status Messages
SFC 10	DIS_MSG	COM_FUNC	Disable Block-Related, Symbol-Related and Group Status Messages
SFC 11	DPSYC_FR	DP	Synchronize Groups of DP Slaves
SFC 12	D_ACT_DP	DP	Deactivation and activation of DP slaves
SFC 13	DPNRM_DG	DIAGNSTC	Read Diagnostic Data of a DP Slave (Slave Diagnostics)
SFC 14	DPRD_DAT	DP	Read Consistent Data of a Standard DP Slave
SFC 15	DPWR_DAT	DP	Write Consistent Data to a DP Standard Slave
SFC 17	ALARM_SQ	PMC_FUNC	Generate Acknowledgeable Block-Related Messages
SFC 18	ALARM_S	PMC_FUNC	Generate Permanently Acknowledged Block-Related Messages
SFC 19	ALARM_SC	PMC_FUNC	Query the Acknowledgment Status of the last ALARM_SQ Entering State Message
SFC 20	BLKMOV	MOVE	Copy Variables
SFC 21	FILL	MOVE	Initialize a Memory Area
SFC 22	CREAT_DB	DB_FUNCT	Create Data Block
SFC 23	DEL_DB	DB_FUNCT	Delete Data Block
SFC 24	TEST_DB	DB_FUNCT	Test Data Block
SFC 25	COMPRESS	DB_FUNCT	Compress the User Memory
SFC 26	UPDAT_PI	IO_FUNCT	Update the Process Image Update Table
SFC 27	UPDAT_PO	IO_FUNCT	Update the Process Image Output Table
SFC 28	SET_TINT	PGM_CNTL	Set Time-of-Day Interrupt
SFC 29	CAN_TINT	PGM_CNTL	Cancel Time-of-Day Interrupt
SFC 30	ACT_TINT	PGM_CNTL	Activate Time-of-Day Interrupt
SFC 31	QRY_TINT	PGM_CNTL	Query Time-of-Day Interrupt
SFC 32	SRT_DINT	PGM_CNTL	Start Time-Delay Interrupt
SFC 33	CAN_DINT	PGM_CNTL	Cancel Time-Delay Interrupt
SFC 34	QRY_DINT	PGM_CNTL	Query Time-Delay Interrupt
SFC 35	MP_ALM	PGM_CNTL	Trigger Multicomputing Interrupt
SFC 36	MSK_FLT	DIAGNSTC	Mask Synchronous Errors
SFC 37	DMSK_FLT	DIAGNSTC	Unmask Synchronous Errors
SFC 38	READ_ERR	DIAGNSTC	Read Error Register
SFC 39	DIS_IRT	IRT_FUNC	Disable New Interrupts and Asynchronous Errors
SFC 40	EN_IRT	IRT_FUNC	Enable New Interrupts and Asynchronous Errors
SFC 41	DIS_AIRT	IRT_FUNC	Delay Higher Priority Interrupts and Asynchronous Errors
SFC 42	EN_AIRT	IRT_FUNC	Enable Higher Priority Interrupts and Asynchronous Errors
SFC 43	RE_TRIGR	PGM_CNTL	Re-trigger Cycle Time Monitoring
SFC 44	REPL_VAL	DIAGNSTC	Transfer Substitute Value to Accumulator 1
SFC 46	STP	PGM_CNTL	Change the CPU to STOP
SFC 47	WAIT	PGM_CNTL	Delay Execution of the User Program
SFC 48	SNC_RTCB	CLK_FUNC	Synchronize Slave Clocks
SFC 49	LGC_GADR	IO_FUNCT	Query the Module Slot Belonging to a Logical Address
SFC 50	RD_LGADR	IO_FUNCT	Query all Logical Addresses of a Module
SFC 51	RDSYSST	DIAGNSTC	Read a System Status List or Partial List
SFC 52	WR_USMSG	DIAGNSTC	Write a User-Defined Diagnostic Event to the Diagnostic Buffer
SFC 54	RD_PARM	IO_FUNCT	Read Defined Parameters
SFC 55	WR_PARM	IO_FUNCT	Write Dynamic Parameters
SFC 56	WR_DPARM	IO_FUNCT	Write Default Parameters
SFC 57	PARM_MOD	IO_FUNCT	Assign Parameters to a Module
SFC 58	WR_REC	IO_FUNCT	Write a Data Record
SFC 59	RD_REC	IO_FUNCT	Read a Data Record
SFC 60	GD_SND	COM_FUNC	Send a GD Packet
SFC 61	GD_RCV	COM_FUNC	Fetch a Received GD Packet
SFC 62	CONTROL	COM_FUNC	Query the Status of a Connection Belonging to a Communication SFB Instance
SFC 63	AB_CALL	PLASTICS	Assembly Code Block (only exists for CPU 614)
SFC 64	TIME_TCK	CLK_FUNC	Read the System Time
SFC 65	X_SEND	COM_FUNC	Send Data to a Communication Partner outside the Local S7 Station
SFC 66	X_RCV	COM_FUNC	Receive Data from a Communication Partner outside the Local S7 Station
SFC 67	X_GET	COM_FUNC	Read Data from a Communication Partner outside the Local S7 Station
SFC 68	X_PUT	COM_FUNC	Write Data to a Communication Partner outside the Local S7 Station
SFC 69	X_ABORT	COM_FUNC	Abort an Existing Connection to a Communication Partner outside the Local S7 Station
SFC 70	GEO_LOG	IO_FUNCT	Determine Start Address of a Module
SFC 71	LOG_GEO	IO_FUNCT	Determine the Slot Belonging to a Logical Address
SFC 72	I_GET	COM_FUNC	Read Data from a Communication Partner within the Local S7 Station
SFC 73	I_PUT	COM_FUNC	Write Data to a Communication Partner within the Local S7 Station
SFC 74	I_ABORT	COM_FUNC	Abort an Existing Connection to a Communication Partner within the Local S7 Station
SFC 78	OB_RT	DIAGNSTC	Determine OB program runtime
SFC 79	SET	BIT_LOGC	Set a Range of Outputs
SFC 80	RSET	BIT_LOGC	Reset a Range of Outputs
SFC 81	UBLKMOV	MOVE	Uninterruptible Block Move
SFC 82	CREA_DBL	DB_CTRL	Create a Data Block in the Load Memory
SFC 83	READ_DBL	DB_CTRL	Read from a Data Block in Load Memory
SFC 84	WRIT_DBL	DB_CTRL	Write from a Data Block in Load Memory
SFC 85	CREA_DB	DB_FUNCT	Create a Data Block
SFC 87	C_DIAG	COM_FUNC	Diagnosis of the Actual Connection Status
SFC 90	H_CTRL	HF_FUNCT	Control Operation in H Systems
SFC 100	SET_CLKS	CLK_FUNC	Setting the Time-of-Day and the TOD Status
SFC 101	RTM	CLK_FUNC	Handling runtime meters
SFC 102	RD_DPARA	IO_FUNCT	Redefined Parameters
SFC 103	DP_TOPOL	DP	Identifying the bus topology in a DP master system
SFC 104	CIR	PGM_CNTL	Controlling CiR
SFC 105	READ_SI	PMC_FUNC	Reading Dynamic System Resources
SFC 106	DEL_SI	PMC_FUNC	Deleting Dynamic System Resources
SFC 107	ALARM_DQ	PMC_FUNC	Generating Always Acknowledgeable and Block-Related Messages
SFC 108	ALARM_D	PMC_FUNC	Generating Always Acknowledgeable and Block-Related Messages
SFC 112	PN_IN	PROFIne2	Update inputs in the user program interface of PROFInet components
SFC 113	PN_OUT	PROFIne2	Update outputs in the user program interface of PROFInet components
SFC 114	PN_DP	PROFIne2	Update DP interconnections
SFC 126	SYNC_PI	IO_FUNCT	Update process image partition input table in synchronous cycle
SFC 127	SYNC_PO	IO_FUNCT	Update process image partition output table in synchronous cycle

S5-S7 Converting Blocks

Number	Name	Family	Description
FC 61	GP_FPGP	S5_CNVRT	Change fixed point number to floating point number
FC 62	GP_GPFP	S5_CNVRT	Change floating point number to fixed point number
FC 63	GP_ADD	S5_CNVRT	Add floating point numbers
FC 64	GP_SUB	S5_CNVRT	Subtract floating point numbers
FC 65	GP_MUL	S5_CNVRT	Multiply floating point number
FC 66	GP_DIV	S5_CNVRT	Divide floating point numbers
FC 67	GP_VGL	S5_CNVRT	Compare floating point numbers
FC 68	RAD_GP	S5_CNVRT	Extract root of floating point numbers
FC 69	MLD_TG	S5_CNVRT	Clock generator
FC 70	MLD_TGZ	S5_CNVRT	Clock generator (timing element)
FC 71	MLD_EZW	S5_CNVRT	Message of first value with single flashing light, wordwise, A
FC 72	MLD_EDW	S5_CNVRT	Message of first value with double flashing light, wordwise, A
FC 73	MLD_SAMW	S5_CNVRT	Collected message, wordwise (sound alert)
FC 74	MLD_SAM	S5_CNVRT	Collected message, bitwise
FC 75	MLD_EZ	S5_CNVRT	Message of first value with single flashing light, bitwise, A
FC 78	MLD_EDWK	S5_CNVRT	Message of first value with double flashing light, wordwise, A+M
FC 79	MLD_EZK	S5_CNVRT	Message of first value with single flashing light, bitwise, A+M
FC 80	MLD_EDK	S5_CNVRT	Message of first value with double flashing light, bitwise, A+M
FC 81	COD_B4	S5_CNVRT	Change BCD number to 16 bit dual number
FC 82	COD_16	S5_CNVRT	Change 16 bit dual number to BCD number
FC 83	MUL_16	S5_CNVRT	Multiply 16 bit dual numbers
FC 84	DIV_16	S5_CNVRT	Divide 16 bit dual numbers
FC 85	ADD_32	S5_CNVRT	Add 32 bit dual numbers
FC 86	SUB_32	S5_CNVRT	Subtract 32 bit dual numbers
FC 87	MUL_32	S5_CNVRT	Multiply 32 bit dual numbers
FC 88	DIV_32	S5_CNVRT	Divide 32 bit dual numbers
FC 89	RAD_16	S5_CNVRT	Extract roots of 16 bit dual numbers
FC 90	REG_SCHB	S5_CNVRT	Bi-directional shift register, bitwise
FC 91	REG_SCHW	S5_CNVRT	Bi-directional shift register, wordwise
FC 92	REG_FIFO	S5_CNVRT	Buffer memory (FIFO)
FC 93	REG_LIFO	S5_CNVRT	Stack register (LIFO)
FC 94	DB_COPY1	S5_CNVRT	Copy data block, direct assignment of parameters
FC 95	DB_COPY2	S5_CNVRT	Copy data block, indirect assignment of parameterization
FC 96	RETTEN	S5_CNVRT	Save scratchpad memory
FC 97	LADEN	S5_CNVRT	Load scratchpad memory
FC 98	COD_B8	S5_CNVRT	Change BCD number to 32 bit dual number
FC 99	COD_32	S5_CNVRT	Change 32 bit dual number to BCD number
FC 100	AE_460_1	S5_CNVRT	Read analog value
FC 101	AE_460_2	S5_CNVRT	Read analog value
FC 102	AE_463_1	S5_CNVRT	Read analog value
FC 103	AE_463_2	S5_CNVRT	Read analog value
FC 104	AE_464_1	S5_CNVRT	Read analog value
FC 105	AE_464_2	S5_CNVRT	Read analog value
FC 106	AE_466_1	S5_CNVRT	Read analog value
FC 107	AE_466_2	S5_CNVRT	Read analog value
FC 108	RLG_AA1	S5_CNVRT	Output analog value
FC 109	RLG_AA2	S5_CNVRT	Output analog value
FC 110	PER_ET1	S5_CNVRT	Read and Write for extended periphery (direct assignment of parameters)
FC 111	PER_ET2	S5_CNVRT	Read and Write for extended periphery (indirect assignment of parameters)
FC 112	SINUS	S5_CNVRT	Sine (x)
FC 113	COSINUS	S5_CNVRT	Cosine (x)
FC 114	TANGENS	S5_CNVRT	Tangent (x)
FC 115	COTANG	S5_CNVRT	Cotangent (x)
FC 116	ARCSIN	S5_CNVRT	Arc sine (x)
FC 117	ARCCOS	S5_CNVRT	Arc cosine (x)
FC 118	ARCTAN	S5_CNVRT	Arc tangent (x)
FC 119	ARCCOT	S5_CNVRT	Arc cotangens (x)
FC 120	LN_X	S5_CNVRT	Natural logarithm ln (x)
FC 121	LG_X	S5_CNVRT	Decade logarithm Iog (x)
FC 122	B_LOG_X	S5_CNVRT	General logarithm log (x) to basis b
FC 123	E_H_N	S5_CNVRT	e to the power of n
FC 124	ZEHN_H_N	S5_CNVRT	10 to the power of n
FC 125	A2_H_A1	S5_CNVRT	AKKU 2 to the power of AKKU 1

IEC Function Blocks

Number	Name	Family	Description
FC 1	AD_DT_TM	IEC	Point Math Add duration to a time
FC 2	CONCAT	IEC	Combine two STRING variables
FC 3	D_TOD_DT	IEC	Combine DATE and TIME_OF_DAY to DT
FC 4	DELETE	IEC	Delete in a STRING variable
FC 5	DI_STRNG	IEC	Data type conversion DINT to STRING
FC 6	DT_DATE	IEC	Extract the DATE from DT
FC 7	DT_DAY	IEC	Extract the day of the week from DT
FC 8	DT_TOD	IEC	Extract the TIME_OF_DAY from DT
FC 9	EQ_DT	IEC	Compare DT for equal
FC 10	EQ_STRNG	IEC	Compare STRING for equal
FC 11	FIND	IEC	Find in a STRING variable
FC 12	GE_DT	IEC	Compare DT for greater than or equal
FC 13	GE_STRNG	IEC	Compare STRING for greater than or equal
FC 14	GT_DT	IEC	Compare DT for greater than
FC 15	GT_STRNG	IEC	Compare STRING for greater than
FC 16	I_STRNG	IEC	Data type conversion INT to STRING
FC 17	INSERT	IEC	Insert in a STRING variable
FC 18	LE_DT	IEC	Compare DT for smaller than or equal
FC 19	LE_STRNG	IEC	Compare STRING for smaller than or equal
FC 20	LEFT	IEC	Left part of a STRING variable
FC 21	LEN	IEC	Length of a STRING variable
FC 22	LIMIT	IEC	Point Math Limit
FC 23	LT_DT	IEC	Compare DT for smaller than
FC 24	LT_STRNG	IEC	Compare STRING for smaller than
FC 25	MAX	IEC	Point Math Select maximum
FC 26	MID	IEC	Middle part of a STRING variable
FC 27	MIN	IEC	Point Math Select minimum
FC 28	NE_DT	IEC	Compare DT for unequal
FC 29	NE_STRNG	IEC	Compare STRING for unequal
FC 30	R_STRNG	IEC	Data type conversion REAL to STRING
FC 31	REPLACE	IEC	Replace in a STRING variable
FC 32	RIGHT	IEC	Right part of a STRING variable
FC 33	S5TI_TIM	IEC	Data type conversion S5TIME to TIME
FC 34	SB_DT_DT	IEC	Point Math Subtract two time values
FC 35	SB_DT_TM	IEC	Point Math Subtract duration from a time
FC 36	SEL	IEC	Point Math Binary selection
FC 37	STRNG_DI	IEC	Data type conversion STRING to DINT
FC 38	STRNG_I	IEC	Data type conversion STRING to INT
FC 39	STRNG_R	IEC	Data type conversion STRING to REAL
FC 40	TIM_S5TI	IEC	Data type conversion TIME to S5TIME

PID Control Blocks

Number	Name	Family	Description
FB 41	CONT_C	ICONT	Continuous Control
FB 42	CONT_S	ICONT	Step Control
FB 43	PULSEGEN	ICONT	Pulse Generation
FB 58	TCONT_CP	CONTROL	Temperature Continuous Controller
FB 59	TCONT_S	CONTROL	Temperature Step Controller

Communication Blocks

Number	Name	Family	Description
FB 2	IDENTIFY	CP_300	For checking device properties
FB 3	READ	CP_300	Reads data from a data area of the communication partner specified by a name or index depending on the assignment of parameters for the job.
FB 4	REPORT	CP_300	Allows unconfirmed transmission of variables by an FMS server.
FB 5	STATUS	CP_300	allows status information to be requested from the communications partner on the specified FMS connection.
FB 6	WRITE	CP_300	Transfers data from a specified local data area to a data area on the communication partner.
FB 8	USEND	CP_300	Uncoordinated Sending of Data
FB 9	URCV	CP_300	Uncoordinated Receiving of Data
FB 12	BSEND	CP_300	Sending Segmented Data
FB 13	BRCV	CP_300	Receiving Segmented Data
FB 14	GET	CP_300	Read Data from a Remote CPU
FB 15	PUT	CP_300	Write Data to a Remote CPU
FB 20	GETIO	IO_FUNCT	Read All Inputs of a DP Standard Slave/PROFINET IO Device
FB 21	SETIO	IO_FUNCT	Write All Outputs of a DP Standard Slave/PROFINET IO Device
FB 22	GETIO_PART	IO_FUNCT	Read a Part of the Inputs of a DP Standard Slave/PROFINET IO Device
FB 23	SETIO_PART	IO_FUNCT	Write a Part of the Outputs of a DP Standard Slave/PROFINET IO Device
FB 55	IP_CONFIG	CP_300	Transfers a configuration data block (CONF_DB) containing connection data for an Ethernet CP.
FB 63	TSEND	COMM	Sending Data via TCP native and ISO on TCP
FB 64	TRCV	COMM	Receiving Data via TCP native and ISO on TCP
FB 65	TCON	COMM	Establishing a Connection using TCP native and ISO on TCP
FB 66	TDISCON	COMM	Terminating a Connection using TCP native and ISO on TCP
FB 67	TUSEND	COMM	Sending Data via UDP
FB 68	TURCV	COMM	Receiving Data via UDP
FC 1	DP_SEND	CP_300	transfers data to the PROFIBUS CP
FC 2	DP_RECV	CP_300	receives data on PROFIBUS
FC 3	DP_DIAG	CP_300	used to request diagnostic information
FC 4	DP_CTRL	CP_300	transfers control jobs to the PROFIBUS CP
FC 5	AG_SEND	CP_300	data by means of a configured connection to the communication partner (<= 240 bytes).
FC 6	AG_RECV	CP_300	data by means of a configured connection from the communication partner (<= 240 bytes, not email).
FC 7	AG_LOCK	CP_300	the external data access by means of FETCH/WRITE (not for UDP, email).
FC 8	AG_UNLOCK	CP_300	the external data access by means of FETCH/WRITE (not for UDP, email).
FC 10	AG_CNTRL	CP_300	allows you to diagnose connections. When necessary, you can reinitialize connection establishment using the FC.
FC 11	PNIO_SEND	CP_300	used for data transfer in the CP modes PROFINET IO controller or PROFINET IO device.
FC 12	PNIO_RECV	CP_300	used to receive data in the CP modes PROFINET IO controller or PROFINET IO device.
FC 40	FTP_CONNECT	CP_300	Establish an FTP connection
FC 41	FTP_STORE	CP_300	Store a file on the FTP server
FC 42	FTP_RETRIEVE	CP_300	Retrieve a file from the FTP server
FC 43	FTP_DELETE	CP_300	Delete a file on the FTP server
FC 44	FTP_QUIT	CP_300	Enable an FTP connection
FC 50	AG_LSEND	CP_300	data by means of a configured connection to the communication partner.
FC 60	AG_LRECV	CP_300	data by means of a configured connection from the communication partner (not email).
FC 62	C_CNTRL	CP_300	Query a connection status for S7-300

TI-S7 Converting Blocks

Number	Name	Family	Description
FB 80	LEAD_LAG	CONVERT	Lead/Lag Algorithm
FB 81	DCAT	TIMERS	Discrete Control Alarm Timer
FB 82	MCAT	TIMERS	Motor Control Alarm Timer
FB 83	IMC	COMPARE	Index Matrix Compare
FB 84	SMC	COMPARE	Scan Matrix Compare
FB 85	DRUM	TIMERS	Event Maskable Drum
FB 86	PACK	MOVE	Pack Data
FC 80	TONR	TIMERS	Software Timer On Delay—Retentive
FC 81	IBLKMOV	MOVE	Indirect Block Move
FC 82	RSET	BIT_LOGC	Reset Range of Outputs
FC 83	SET	BIT_LOGC	Set Range of Outputs
FC 84	ATT	TABLE	Add to Table
FC 85	FIFO	TABLE	First In/First Out Unload Table
FC 86	TBL_FIND	TABLE	Table Find
FC 87	LIFO	TABLE	Last In/First Out Unload Table
FC 88	TBL	TABLE	Table
FC 89	TBL_WRD	TABLE	Move Table to Word
FC 90	WSR	SHIFT	Word Shift Register
FC 91	WRD_TBL	TABLE	Word to Table
FC 92	SHRB	SHIFT	Bit Shift Register
FC 93	SEG	CONVERT	Seven Segment Decoder
FC 94	ATH	CONVERT	ASCII to Hex
FC 95	HTA	CONVERT	Hex to ASCII
FC 96	ENCO	CONVERT	Encode Binary Position
FC 97	DECO	CONVERT	Decode Binary Position
FC 98	BCDCPL	CONVERT	Ten’s Complement
FC 99	BITSUM	CONVERT	Sum Number of Bits
FC 100	RSETI	BIT_LOGC	Reset Range of Immediate Outputs
FC 101	SETI	BIT_LOGC	Set Range of Immediate Outputs
FC 102	DEV	MATH_FP	Standard Deviation
FC 103	CDT	TABLE	Correlated Data Table
FC 104	TBL_TBL	TABLE	Table to Table
FC 105	SCALE	CONVERT	Scaling Values
FC 106	UNSCALE	CONVERT	Unscaling Values

Miscellaneous Blocks

Number	Name	Family	Description
FB 60	SET_SW	TIMEFUNC	supports the summertime/wintertime changeover in CPUs that do not have the time status. For this purpose it sets the CPU clock to the current time and according to the changeover rules in the Control DB.
FB 61	SET_SW_S	TIMEFUNC	supports the summertime/wintertime changeover in CPUs that do have the time status. For this purpose it sets the time status to the current time and according to the changeover rules in the Control DB.
FB 62	TIMESTMP	TIMEFUNC	transfers the time-stamped messages of an IM153-2 into its instance DB.
FC 60	LOC_TIME	TIMEFUNC	reads the time status or time of the CPU and calculates the local time. It is therefore only useful on CPUs with time status.
FC 61	BT_LT	TIMEFUNC	calculates the local time from the base time given at the input.
FC 62	LT_BT	TIMEFUNC	calculates the base time from the local time given at the input.
FC 63	S_LTINT	TIMEFUNC	sets the required time interrupt to the preset time. This time is given in local time.