Rockwell Automation 1772-LV Mini-PLC - 2/15 Programmable Controller (Series B) Programming and Operations - Manual (Page 172)

Quick Reference Section
Appendix A
AĆ3
Instruction Name
Words of Memory
Required Key Symbol
Temporary End T. END 1
[1] Timer and counter instructions use two words from the data table and one
word from user program.
[2] File and sequence instructions use a varied amount from the data table.
It depends on the size of your file. Values can range from 000-999 words