Mitsubishi Electric MELSEC iQ-R RD75P4, User Manual

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3 MAJOR POSITIONING CONTROL
3.1 Overview of the Major Positioning Controls
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Specifying the positioning address
One of the following two methods can be used for commanding the position in the control using positioning data.
Absolute system
The positioning is performed to a specified position (absolute address) having the OP as a reference. This address is
regarded as the positioning address. (Any address can be set as the start point.)
Incremental system
The position where the machine is currently stopped is regarded as the start point, and the positioning is performed for a
specified movement amount in a specified movement direction.
100
150 300
Address 100
Address
150
Address 300
Address 100
Address 150
Start point
End point
Address 100
A point
OP
(reference point)
B point C point
Within the stroke limit range
Address 150
300 150 100
Movement 100
Movement
amount -150
Movement 100
Within the stroke limit range
Start point
End point
Movement amount -100
Movement 50
A point
OP
(reference point)
B point C point
Movement amount -100
Movement 100