Optima DMC-1xxx and DMC-18x2 Command Reference 
EW
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87 
EW 
FUNCTION:  ECAM Widen Segment 
DESCRIPTION: 
The EW command allows widening the length of one or two ECAM segments beyond the 
width specified by EP.  For ECAM tables with one or two long linear sections, this 
allows placing more points in the curved sections of the table. 
There are only two widened segments, and if used they are common for all ECAM axes.  
Remember that the widened segment lengths must be taken into account when 
determining the modulus (EM) for the master.  The segments chosen should not be the 
first or last segments, or consecutive segments. 
ARGUMENTS:  EW m1=n1,m2=n2 
where 
m1 is the index of the first widened segment.  m1 is a positive integer between 1 and 255. 
n1 is the length of the first widened segment in master counts.  n1 is an integer between 1 and 
2,147,483,647. 
m2 is the index of the second widened segment.  m2 is a positive integer between 3 and 255. 
n2 is the length of the second widened segment in master counts.  n2 is an integer between 1 
and 2,147,483,647. 
If m1 or m2 is set to -1, there is no widened segment.  The segment number m2 must be 
greater than m1, and m2 may not be used unless m1 is used. 
USAGE:    DEFAULTS: 
While Moving 
No 
Default Value 
-1, 0 -1, 0 
In a Program 
Yes 
Default Format 
 
Command Line 
Yes 
 
 
Controller Usage 
ALL CONTROLERS 
 
 
OPERAND USAGE: 
_EW0 contains m1, the index of the first widened segment. 
_EW1 contains n1, the length of the first widened segment. 
_EW2 contains m2, the index of the second widened segment 
_EW3 contains n2, the length of the second widened segment. 
RELATED COMMANDS: 
"EP"  
ECAM master positions 
"
EA
"  
Choose ECAM master 
"
EB
"  
Enable ECAM 
"
EC
"  
Set ECAM table index 
"
EG
"  
Engage ECAM Slave 
"
EM
"  
Specify ECAM cycle 
"
EQ
"  
Disengage ECAM Slave 
"
ET
"  
ECAM table 
EXAMPLES: 
EW 41=688 
:'Widen segment 41 to 688 master counts 
EW 41=688, 124=688 
:'Widen segments 41 and 124 to 688 master counts