Galil Motion Control DMC-18 2 Series, User Manual

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88 ● Chapter 6 Programming Motion DMC-18x2
Command Summary – Electronic CAM
COMMAND DESCRIPTION
EA p Specifies master axes for electronic cam where:
P = X,Y,Z or W or A,B,C,D,E,F,G,H for main encoder as master
EB n Enables the ECAM
EC n ECAM counter – sets the index into the ECAM table
EG x,y,z,w Engages ECAM
EM x,y,z,w Specifies the change in position for each axis of the CAM cycle
EP m,n Defines CAM table entry size and offset
EQ m,n Disengages ECAM at specified position
ET[n] Defines the ECAM table entries
EW Widen segment (see Application Note #2444)
EY Set ECAM cycle count
The following example illustrates a cam program with a master axis, Z, and two slaves, X and Y.
Instruction Interpretation
#A;V1=0 Label; Initialize variable
PA 0,0;BGXY;AMXY Go to position 0,0 on X and Y axes
EA Z Z axis as the Master for ECAM
EM 0,0,4000 Change for Z is 4000, zero for X, Y
EP400,0 ECAM interval is 400 counts with zero start
ET[0]=0,0 When master is at 0 position; 1st point.
ET[1]=40,20 2nd point in the ECAM table
ET[2]=120,60 3rd point in the ECAM table
ET[3]=240,120 4th point in the ECAM table
ET[4]=280,140 5th point in the ECAM table
ET[5]=280,140 6th point in the ECAM table
ET[6]=280,140 7th point in the ECAM table
ET[7]=240,120 8th point in the ECAM table
ET[8]=120,60 9th point in the ECAM table
ET[9]=40,20 10th point in the ECAM table
ET[10]=0,0 Starting point for next cycle
EB 1 Enable ECAM mode
JGZ=4000 Set Z to jog at 4000
EG 0,0 Engage both X and Y when Master = 0
BGZ Begin jog on Z axis
#LOOP;JP#LOOP,V1=0 Loop until the variable is set
EQ2000,2000 Disengage X and Y when Master = 2000
MF,, 2000 Wait until the Master goes to 2000
ST Z Stop the Z axis motion
EB 0 Exit the ECAM mode
EN End of the program
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