Rockwell Automation 1772-LP3 PLC - 2/30 Programmable Controller Programming and Operations Manual - Manual (Page 250)

Shift Register Instructions
Chapter 13
13Ć7
Figure 13.5
Format for FIFO LOAD and FIFO UNLOAD Instructions
FIFO UNLOAD
COUNTER ADDR: 030
FIFO SIZE: 001
NUMBER IN FILE: 000
FILE: 110- 110
INPUT ADDR: 010
INPUT DATA: 0000
030
(EN)
17
Numbers shown are default values. Bold numbers must be replaced by userĆentered values. The number of default address digits
initially displayed Ċ 3, 4, or 5 Ċ will depend on the size of the data table. Initially displayed default values are governed by the I/O rack
configuration.
COUNTER ADDRESS : Address of the instruction in the accumulated value area of the data table.
FIFO SIZE : The maximum number of words that the FIFO stack can contain.
NO IN FILE : Current number of words in the stack.
FILE : Starting address of the FIFO stack location.
INPUT ADDRESS : Address of input word outisde the stack.
INPUT DATA : Current data at input address.
030
(FL)
15
Numbers shown are default values. Bold numbers must be replaced by userĆentered values. The number of default address digits
initially displayed Ċ 3, 4, or 5 Ċ will depend on the size of the data table. Initially displayed default values are governed by the I/O rack
configuration.
COUNTER ADDRESS : Address of the instruction in the accumulated value area of the data table.
FIFO SIZE : The maximum number of words that the FIFO stack can contain.
NO IN FILE : Current number of words in the stack.
FILE : Starting address of the FIFO stack location.
OUTPUT ADDRESS : Address of output word outisde the stack.
OUTUT DATA : Current data at output address.
030
(EM)
14
FIFO LOAD
COUNTER ADDR: 030
FIFO SIZE: 001
NUMBER IN FILE: 000
FILE: 110- 110
OUTPUT ADDR: 010
OUTPUT DATA: 0000
030
(EN)
16
030
(FL)
15
030
(EM)
14