5 - 15 
MELSEC-Q
 
5   DATA USED FOR POSITIONING CONTROL 
 
[2]   Monitoring the axis operation state 
 
 Monitoring the position 
 
Monitor details  Corresponding item 
•
 Monitor the current machine feed value 
Md.21
 
Machine feed value 
•
 Monitor the current "current feed value" 
Md.20
 
Current feed value 
•
 Monitor the current target value 
Md.32
 
Target value 
 
 Monitoring the speed 
 
Monitor details  Corresponding item 
During independent axis control 
Indicates the 
speed of each 
axis 
When "0:  
Composite speed" is 
set for
Pr.20
 
Interpolation speed 
designation method 
Indicates the 
composite 
speed 
During 
interpola-
tion 
control 
When "1: 
Reference axis 
speed" is set for 
Pr.20
Interpolation 
speed designation 
method 
Indicates the 
reference axis 
speed 
Md.22
 
Feedrate 
•
 Monitor the 
current speed 
Constantly indicates the speed of each axis 
Md.28
 
Axis feedrate 
•
 Monitor the current target speed 
Md.33
 
Target speed