Rockwell Automation 1772-LP3 PLC - 2/30 Programmable Controller Programming and Operations Manual - Manual (Page 278)

Sequencer Instructions
Chapter 15
15Ć15
Figure 15.11
SEQUENCER LOAD Format
SEQUENCER LOAD
COUNTER ADDR: 030
CURRENT STEP: 000
SEQ LENGTH: 001
WORDS PER STEP: 1
FILE: 110- 110
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.
CURRENT STEP : Position in sequencer table (accumulated value of counter).
SEQ LENGTH : Number of steps (preset value of counter).
WORDS PER STEP : Width of sequencer table (number of columns).
FILE : Starting address of sequencer table.
LOAD WORDS : Words fetched by the instruction.
030
(DN)
15
INPUT WORDS
1: 010
3: XXX
2: XXX
4: XXX
An example rung containing the Sequencer Load instruction is shown
in Figure 15.12. The following parameters have been entered into the
instruction:
Counter Address – 0056
Current Step – 008
Sequencer Length – 012
Words Per Step – 4
File – 0510-0523
Load Words – 0111, 0113, 0012, 0314
When switch 114/16 closes, the Sequencer Load instruction increments to
step 009. The data from Load Words 0111, 0113, 0012 and 0314 are loaded
into step 009 of the sequencer table in one scan. Thereafter, no data can be
loaded until switch 114/16 opens, then closes again.