Allen-Bradley MicroLogix 1400 Instruction Manual page 272

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270 File Instructions
Publication 1766-RM001A-EN-P - October 2008
You cannot use indirect addressing with: S, MG, PD, RTC, HSC, PTOX,
IMPORTANT
PWMX, STI, EII, BHI, MMI, CS, IOS, and DLS files.
The source and destination file types must be the same except bit (B) and
integer (N); they can be interchanged. It is the address that determines the
maximum length of the block to be copied, as shown in the following
table:
Maximum Lengths for the COP Instruction
Source/Destination Data Type
1 word elements (ie. word)
2 word elements (ie. long word)
3 word elements (ie. counter)
42 word elements (ie. string)
Range of Length Operand
1...128
1...64
1...42
1...3