MOVE: Move value (S7-1200, S7-1500)

MOVE: Move value

Description

You use the "Move value" instruction to transfer the content of the operand at the IN input to the operand at the OUT1 output. The transfer is always made in the direction of ascending address.

Enable output ENO returns the signal state "0" if one of the following conditions applies:

Enable input EN has the signal state "0".
The data type at the IN parameter does not correspond to the specified data type at the OUT1 parameter.

The following table lists the possible transfers for the S7-1200 CPU series:

Source (IN)	Destination (OUT1)
Source (IN)	With IEC check	Without IEC check
BYTE	BYTE, WORD, DWORD	BYTE, WORD, DWORD, SINT, USINT, INT, UINT, DINT, UDINT, TIME, DATE ,TOD, CHAR
WORD	WORD, DWORD	BYTE, WORD, DWORD, SINT, USINT, INT, UINT, DINT, UDINT, TIME, DATE, TOD, CHAR
DWORD	DWORD	BYTE, WORD, DWORD, SINT, USINT, INT, UINT, DINT, UDINT, REAL, TIME, DATE, TOD, CHAR
SINT	SINT	BYTE, WORD, DWORD, SINT, USINT, INT, UINT, DINT, UDINT, TIME, DATE, TOD
USINT	USINT, UINT, UDINT	BYTE, WORD, DWORD, SINT, USINT, INT, UINT, DINT, UDINT, TIME, DATE, TOD
INT	INT	BYTE, WORD, DWORD, SINT, USINT, INT, UINT, DINT, UDINT, TIME, DATE, TOD
UINT	UINT, UDINT	BYTE, WORD, DWORD, SINT, USINT, INT, UINT, DINT, UDINT, TIME, DATE, TOD
DINT	DINT	BYTE, WORD, DWORD, SINT, USINT, INT, UINT, DINT, UDINT, TIME, DATE, TOD
UDINT	UDINT	BYTE, WORD, DWORD, SINT, USINT, INT, UINT, DINT, UDINT, TIME, DATE, TOD
REAL	REAL	DWORD, REAL
LREAL	LREAL	LREAL
TIME	TIME	BYTE, WORD, DWORD, SINT, USINT, INT, UINT, DINT, UDINT, TIME
DATE	DATE	BYTE, WORD, DWORD, SINT, USINT, INT, UINT, DINT, UDINT, DATE
TOD	TOD	BYTE, WORD, DWORD, SINT, USINT, INT, UINT, DINT, UDINT, TOD
DTL	DTL	DTL
CHAR	CHAR	BYTE, WORD, DWORD, CHAR, Character of a string¹⁾
WCHAR	WCHAR	BYTE, WORD, DWORD, CHAR, WCHAR, character of a character string¹⁾
Character of a string¹⁾	Character of a string	CHAR, WCHAR, character of a string
ARRAY²⁾	ARRAY	ARRAY
STRUCT	STRUCT	STRUCT
PLC data type (UDT)	PLC data type (UDT)	PLC data type (UDT)
IEC_TIMER	IEC_TIMER	IEC_TIMER
IEC_SCOUNTER	IEC_SCOUNTER	IEC_SCOUNTER
IEC_USCOUNTER	IEC_USCOUNTER	IEC_USCOUNTER
IEC_COUNTER	IEC_COUNTER	IEC_COUNTER
IEC_UCOUNTER	IEC_UCOUNTER	IEC_UCOUNTER
IEC_DCOUNTER	IEC_DCOUNTER	IEC_DCOUNTER
IEC_UDCOUNTER	IEC_UDCOUNTER	IEC_UDCOUNTER

The following table lists the possible transfers for the S7-1500 CPU series:

Source (IN)	Destination (OUT1)
Source (IN)	With IEC check	Without IEC check
BYTE	BYTE, WORD, DWORD, LWORD	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, TIME, LTIME, LDT, DATE ,TOD, LTOD, CHAR
WORD	WORD, DWORD, LWORD	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, S5TIME, TIME, LTIME, LDT, DATE, TOD, LTOD, CHAR
DWORD	DWORD, LWORD	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, REAL, TIME, LTIME, LDT, DATE, TOD, LTOD, CHAR
LWORD	LWORD	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, LREAL, TIME, LTIME, LDT, DATE, TOD, LTOD, CHAR
SINT	SINT	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, TIME, LTIME, LDT, DATE, TOD, LTOD
USINT	USINT, UINT, UDINT, ULINT	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, TIME, LTIME, LDT, DATE, TOD, LTOD
INT	INT	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, TIME, LTIME, LDT, DATE, TOD, LTOD
UINT	UINT, UDINT, ULINT	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, TIME, LTIME, LDT, DATE, TOD. LTOD
DINT	DINT	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, TIME, LTIME, LDT, DATE, TOD, LTOD
UDINT	UDINT, ULINT	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, TIME, LTIME, LDT, DATE, TOD, LTOD
LINT	LINT	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, TIME, LTIME, LDT, DATE, TOD, LTOD
ULINT	ULINT	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, TIME, LTIME, LDT, DATE, TOD, LTOD
REAL	REAL	DWORD, REAL
LREAL	LREAL	LWORD, LREAL
S5TIME	S5TIME	WORD, S5TIME
TIME	TIME	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, TIME
LTIME	LTIME	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, LTIME
DATE	DATE	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, DATE
DT	DT	DT
LDT	LDT	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, LDT
TOD	TOD	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, TOD
LTOD	LTOD	BYTE, WORD, DWORD, LWORD, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, LTOD
DTL	DTL	DTL
CHAR	CHAR	BYTE, WORD, DWORD, LWORD, CHAR, Character of a string¹⁾
WCHAR	WCHAR	BYTE, WORD, DWORD, LWORD, CHAR, WCHAR, Character of a string¹⁾
Character of a string¹⁾	Character of a string	CHAR, WCHAR, character of a string
ARRAY²⁾	ARRAY	ARRAY
STRUCT	STRUCT	STRUCT
COUNTER	COUNTER, WORD, INT	WORD, DWORD, INT, UINT, DINT, UDINT
TIMER	TIMER, WORD, INT	WORD, DWORD, INT, UINT, DINT, UDINT
PLC data type (UDT)	PLC data type (UDT)	PLC data type (UDT)
IEC_TIMER	IEC_TIMER	IEC_TIMER
IEC_LTIMER	IEC_LTIMER	IEC_LTIMER
IEC_SCOUNTER	IEC_SCOUNTER	IEC_SCOUNTER
IEC_USCOUNTER	IEC_USCOUNTER	IEC_USCOUNTER
IEC_COUNTER	IEC_COUNTER	IEC_COUNTER
IEC_UCOUNTER	IEC_UCOUNTER	IEC_UCOUNTER
IEC_DCOUNTER	IEC_DCOUNTER	IEC_DCOUNTER
IEC_UDCOUNTER	IEC_UDCOUNTER	IEC_UDCOUNTER
IEC_LCOUNTER	IEC_LCOUNTER	IEC_LCOUNTER
IEC_ULCOUNTER	IEC_ULCOUNTER	IEC_ULCOUNTER
REF()	There is no data type conversion. The transferred tag must correspond exactly to the target data type. References to technology objects must point to a technology object of the same type or a derived type.

¹⁾ You can also use the "Move value" instruction to transfer individual characters of a string to operands of the CHAR or WCHAR data type. The number of the character to be transferred is specified in square brackets next to the operand name. "MyString[2]", for example, transfers the second character of the "MyString" string. The transfer of the operand of the data type CHAR or WCHAR to the individual character of a string is also possible. You can also replace a specific character of a string with the character of another string.

²⁾Transferring entire arrays (ARRAY) is possible only when the array components of the operands at input IN and at output OUT1 are of the same data type.

If the bit length of the data type at input IN exceeds the bit length of the data type at output OUT1, the higher-order bits of the source value are lost. If the bit length of the data type at input IN is less than the bit length of the data type at output OUT1, the higher-order bits of the destination value will be overwritten with zeros.

In its initial state, the instruction box contains 1 output (OUT1). The number of outputs can be extended. The added outputs are numbered in ascending order on the box. During the execution of the instruction, the content of the operand at the input IN is transferred to all available outputs. The instruction box cannot be extended if structured data types (DTL, STRUCT, ARRAY) or characters of a string are transferred.

You can also use the "Move block" (MOVE_BLK) and "Move block uninterruptible" (UMOVE_BLK) instructions to move operands of the ARRAY data type. Operand of the data type STRING or WSTRING can be copied with the instruction "Move character string" (S_MOVE).

Parameters

The following table shows the parameters of the "Move value" instruction:

Parameters	Declaration	Data type		Memory area		Description
Parameters	Declaration	S7-1200	S7-1500	S7-1200	S7-1500	Description
EN	Input	BOOL	BOOL	I, Q, M, D, L or constant	I, Q, M, D, L, T, C or constant	Enable input
ENO	Output	BOOL	BOOL	I, Q, M, D, L	I, Q, M, D, L	Enable output
IN	Input	Bit strings, integers, floating-point numbers, timers, date and time, CHAR, WCHAR, STRUCT, ARRAY, IEC data types, PLC data type (UDT)	Bit strings, integers, floating-point numbers, timers, date and time, CHAR; WCHAR, STRUCT, ARRAY, TIMER, COUNTER, IEC data type, PLC data type (UDT)	I, Q, M, D, L or constant	I, Q, M, D, L or constant	Element used to overwrite the destination address.
OUT1	Output	Bit strings, integers, floating-point numbers, timers, date and time, CHAR, WCHAR, STRUCT, ARRAY, IEC data types, PLC data type (UDT)	Bit strings, integers, floating-point numbers, timers, date and time, CHAR; WCHAR, STRUCT, ARRAY, TIMER, COUNTER, IEC data type, PLC data type (UDT)	I, Q, M, D, L	I, Q, M, D, L	Destination address

You can find additional information on valid data types under "See also".

Example

The following example shows how the instruction works:

The following table shows how the instruction works using specific operand values:

Parameters	Operand	Value
IN	TagIn_Value	0011 1111 1010 1111
OUT1	TagOut_Value	0011 1111 1010 1111

If the "TagIn" operand returns signal state TRUE, the instruction is executed. The instruction moves the contents of the "TagIn_Value" operand to the "TagOut_Value" operand. If the instruction is executed without errors, the ENO and "TagOut" enable outputs are set to signal state TRUE.

Note

You can find more information on the MOVE instruction in the following article in the Siemens Industry Online Support:

In STEP 7 (TIA Portal) how do you copy memory areas and structured data from one data block to another?

https://support.industry.siemens.com/cs/ww/en/view/42603881

MOVE: Move value (S7-1200, S7-1500) - STEP 7

FBD (S7-1200, S7-1500)