3 MAJOR POSITIONING CONTROL
3.1 Outline of Major Positioning Controls
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3
Confirming the current value
Values showing the current value
The following two types of addresses are used as values to show the position in the Simple Motion module.
These addresses ("current feed value" and "machine feed value") are stored in the monitor data area, and used in monitoring
the current value display, etc.
The "current feed value" and "machine feed value" are used in monitoring the current value display, etc.
Operation cycle error will occur in the current value refresh cycle when the stored "current feed value" and
"machine feed value" are used in the control.
Current feed value Machine feed value
• This is the value stored in "[Md.20] Current feed value".
• This value has an address established with a "machine home position
return" as a reference, but the address can be changed by changing the
current value to a new value.
• This is the value stored in "[Md.21] Machine feed value".
• This value always has an address established with a "machine home
position return" as a reference. The address cannot be changed, even if the
current value is changed to a new value.
0
1 to
[Md.20] Current feed value
t
V
Home position
20000
Current value changed to
20000 with current value
changing instruction
0
1 to
[Md.21] Machine feed value
Address after the current
value is changed is stored
10000
10000
Address does not change even
after the current value is changed
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