CON[2]=@COS[POS]*2 Assigns the second element of the array CON the cosine of the
variable POS multiplied by 2.
TIMER[1]=TIME Assigns the first element of the array timer the returned
value of the TIME keyword.
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.
Example:
#A Begin Program
COUNT=0;DM POS[10] Initialize counter and define array
#LOOP Begin loop
WT 10 Wait 10 msec
POS[COUNT]=_TPX 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-40x0 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 eight types of data
can be captured and stored in eight arrays. The capture rate or time interval may be specified. Recording can done
as a one time event or as a circular continuous recording.
Command Summary - Automatic Data Capture
Command Description
RA n[ ],m[ ],o[ ],p[ ] Selects up to eight arrays for data capture. The arrays must be defined with the
DM command.
RD type1,type2,type3,type4 Selects the type of data to be recorded, where type1, type2, type3, and type 4
represent the various types of data (see table below). The order of data type is
important and corresponds with the order of n,m,o,p arrays in the RA command.
Chapter 7 Application Programming • 155 DMC-40x0 User Manual
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