Rockwell-automation 1771-QA Stepper Positioning Assembly User Manual Manuale Utente Scaricare il pdf (Pagina 87)

4–9Example 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

Equivalent

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.

Position number of the data monitor display of FFM 0036.

Equivalent words in file A of FFM 0036.

1 2 ... 82 83 84 85 86 87 88 89 90 91 92 ... 131 132

Commenti su questo manuale

Nessun commento

Rockwell-automation 1771-QA Stepper Positioning Assembly User Manual Manuale Utente Pagina 87

Commenti su questo manuale

Prodotti e manuali riguardandi Apparecchiature Rockwell-automation 1771-QA Stepper Positioning Assembly User Manual