Rockwell Automation 1771-QA Stepper Positioning Assembly User Manual - Manual (Page 87)

4–9 Example Programs
Publication 1771-UM002A–EN–P – May 2000
Preset and Jog Data
Preset and jog data are programmed in a 10-word moveset. The
moveset data is contained in words 310-321 of the file-to-file move
instruction having counter address 0036 as shown in rung 12 (Figure
4.4). The preset and jog data have been logged on the Moveset Data
form (Figure 4.3). The function of the data is summarized in Table
4.A.
Important: Bits in the moveset control word and single move
control word have been set in hexadecimal notation for
convenience so that move data can be entered in
decimal numbers. The equivalence between
hexadecimal and binary must be known. Otherwise, the
binary data monitor mode would have to be used
separately for setting bit patterns in the control words.
Table 4.A
Functions of Jog/Preset Data (1-Axis Program)
Position
Number
1
Equivalent
Word
2
Word
Description
Function
001 310 Moveset Control word Bit 10 is set to identify axis 1. (The
hex value of 1 = 0012 in bits 12-10,
respectively.)
002 311 Offset Word Ignored in this example
003, 004 312, 313 ML, LS Preset Words Preset of 25
005 314 Single Move Control
Word Bit 3 is set to identify the moveset as
jog data. Bits 16 & 17 are set to
identify the single move control word.
006 315 Ramp Time 0.5 second to accelerate to final rate
007 316 Final Rate 10 pulses/second or 1000
pulses/second depending on the bit
pattern programmed in rungs 11 and
12.
008 317 Decel Time 0.5 second to decelerate from final
rate to zero.
009, 010 320. 321 Final Position of the jog 999,999 pulses. Allows maximum
travel of the jog move if/as needed.
This could also be programmed as
000,000.
1 Position number of the data monitor display of FFM 0036.
2 Equivalent words in file A of FFM 0036.