Rockwell Automation 1772-L8_LW_LWP_LX_LXP,D17726.5.8 User Manual - Manual (Page 323)

Bit Shift Registers
Chapter 20
20-13
The Reset Shift Bit output instruction turns off a specified bit in a bit shift
register. You specify the bit number of the bit to be turned off and the
starting address of the file. The instruction executes upon a true
rung condition.
Important: If file is shifted, new data in the same bit position will be
reset if the Reset Shift Bit rung is still true.
Here are some characteristics of a reset shift bit instruction:
Programmed as an output instruction
Requires 3 words of your program
Key sequence [Shift] [Reg] [1] [7]
Programming a Reset Bit Shift Instruction
To program a Reset Bit Shift instruction:
The prompt SHIFT REGISTER 12 appears in the lower left hand corner of
the screen.
RESET SHIFT BIT
FILE:
BIT NUMBER:
001
020
10
110
17
Reset Bit Shift