Mitsubishi Electric MELSEC-Q Series - Page 204

6 - 17
6 POSITIONING CONTROL
[Processing in the Motion SFC Program]
1) Transfer the start address to word devices of the Motion CPU before
starting.
2) Calculate the target address by applying the travel value to the address
before starting.
3) Calculate the residual travel value by subtracting the stop address from
the target address.
4) Store the residual travel value in the servo program for travel value
register.
5) Perform the servo program.
Axis 2
Axis 1
Stop position by stop command
[Address 2 (start address after stop)]
Address 1
(start address)
Travel value from
Address 2
(Note)
Travel
value from
Address 1
Travel value from Address 1
(Note): Store in registers for travel value.
Travel value from
Address 2
(Note)