GE PACSystems RX7i - Page 154

Chapter 4. Ladder Diagram (LD) Programming
GFK-2950C February 2018 139
Function
Mnemonics
Description
Move
MOVE_BOOL
MOVE_DATA
MOVE_DINT
MOVE_DWORD
MOVE_INT
MOVE_REAL
MOVE_LREAL
MOVE_UINT
MOVE_WORD
Copies data as individual bits, so the new location does not have to
be the same data type. Data can be moved into a different data type
without prior conversion.
Move Data Explicit
MOVE_DATA_EX
Provides an input that allows for data coherency by locking symbolic
memory being written to during the copy operation.
Move from Flat
MOVE_FROM_FLAT
Copies reference memory data to a UDT variable or UDT array.
Provides the option of locking the symbolic or I/O variable memory
area being written to during the copy operation.
Move to Flat
MOVE_TO_FLAT
Copies data from symbolic or I/O variable memory to reference
memory. Copies across mismatching data types.
Shift Register
SHFR_BIT
SHFR_DWORD
SHFR_WORD
Shifts one or more data bits, data WORDs or data DWORDs from a
reference location into a specified area of memory. Data already in
the area is shifted out.
Size Of
SIZE_OF
Counts the number of bits used by a variable.
Swap
SWAP_DWORD
SWAP_WORD
Swaps two BYTEs of data within a WORD or two WORDs within a
DWORD.