Bit Shift Registers
Chapter 20
20-14
A display represented by Figure 20.12 shows the format of a Reset
Bit Shift.
Figure 20.12
Reset Bit Shift Format
RESET SHIFT BIT
FILE:
BIT NO. 001
110
Numbers shown are default values. The number of default address digits initially displayed, 3, 4,
or 5 will depend on the size of the data table. Initially displayed default values are governed by the
I/O rack configuration.
This Value:
Stores This:
File
Starting address of the file (file of bit shift instruction).
Bit number
Decimal number of the bit to be examined (1999).
After you have entered the following conditions:
The file starts at word 400
8
.
Bit number 67 (Figure 20.1 or Figure 20.4 ) is off (0).
The instruction should look like Figure 20.13:
Figure 20.13
Reset Shift Bit Example Rung
RESET SHIFT BIT
FILE:
BIT NUMBER: 067
020
10
400
