Using a variable to address array elements, Automatic data capture into arrays – Galil DMC-2X00 User Manual

Page 158

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con[2]=@COS[POS]*2

Assigns the 2

nd

element of the array the cosine of POS * 2.

timer[1]=TIME

Assigns the 1

st

element of the array TIME

Using a Variable to Address Array Elements

An array element number can also be a variable. This allows array entries to be assigned sequentially
using a counter.

Instruction Interpretation

#A Begin

Program

count=0;DM POS[10]

Initialize counter and define array

#LOOP Begin

loop

WT 10

Wait 10 msec

POS[count]=_TPA Record

position into array element

POS[count]= Report

position

count = count +1

Increment counter

JP #LOOP, count <10

Loop until 10 elements have been stored

EN End

Program

The above example records 10 position values at a rate of one value per 10 msec. The values are
stored in an array named POS. The variable, COUNT, is used to increment the array element counter.
The above example can also be executed with the automatic data capture feature described below.

Uploading and Downloading Arrays to On Board Memory

Arrays may be uploaded and downloaded using the QU and QD commands.

QU

array[],start,end,delim

QD

array[],start,end

where array is an array name such as A[].

Start is the first element of array (default=0)

End is the last element of array (default=last element)

Delim specifies whether the array data is separated by a comma (delim=1) or a carriage return
(delim=0).

The file is terminated using <control>Z, <control>Q, <control>D or \.

Automatic Data Capture into Arrays

The DMC-2x00 provides a special feature for automatic capture of data such as position, position
error, inputs or torque. This is useful for teaching motion trajectories or observing system
performance. Up to four types of data can be captured and stored in four arrays. The capture rate or
time interval may be specified. Recording can be done as a one time event or as a circular continuous
recording.

148

Chapter 7 Application Programming

DMC-2X00

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