Rockwell Automation 1772-L8_LW_LWP_LX_LXP,D17726.5.8 User Manual - Manual (Page 294)

Data Transfer File Instruction
Chapter 19
19-2
The word address defines:
the location in the data table to which or from which the data will
be moved.
this word address can be manipulated by ladder diagram logic
This instruction copies a source file and transfers it to the destination
file address.
It is programmed as an output instruction and requires 5 words of the
user program area.
The source file remains intact.
The counter is incremented internally by the instruction.
Internally Indexed Counter
An internally indexed counter is incremented by the instruction itself. No
outside control is required. You assign an address to the counter.
An internally indexed file instruction has a done bit (15) and an enable bit
(17). These two bits are automatically entered from the counter address.
The enable bit is set when the rung logic goes from a false to true
transition; the done bit is set when the file instruction is completed.
When you look at Figure 19.2, notice that a value for rate per scan is
needed. The rate per scan defines the number of words that are operated
upon during one scan and is determined by the mode of operation.
FileĆtoĆFile Move Instruction