Mitsubishi Electric MELSEC-L LD75P User Manual page 563

(3) Setting method
The following table and chart show the example of a data setting and program used to change the target position
of the axis 1 by the command from CPU module, respectively." (Example in which the target position value and
command speed are changed to a new target position of "300.0m" and a new command speed of
"10000.00mm/min".)
(a) Set the following data.
(Use the start time chart shown in section (b) below as a reference, and set data using the program shown in
section (c).)
Setting item
Target position
[Cd.27] change value
(new address)
Target position
[Cd.28] change value
(new speed)
Target position
[Cd.29] change request
flag
Refer to  Page 211, Section 5.7 for the information on detail settings.
(b) The following shows the time chart for target position change.
Positioning start signal [Y10]
PLC READY signal [Y0]
LD75 READY signal [X0]
Start complete signal [X10]
BUSY signal [XC]
Positioning complete [X14]
signal
Error detection signal [X8]
Target position change value
Cd.27
(New address)
Target position change value
Cd.28
(New speed)
Target position change
Cd.29
request flag
Setting value
3000 Set the new address.
1000000 Set the new speed.
1 Set "1: Carry out speed change".
V
CHAPTER 12 CONTROL SUB FUNCTIONS
Setting details
3000
1000000
0 0
1
Buffer memory address
Axis 1 Axis 2 Axis 3 Axis 4
1534 1634 1734 1834
1535 1635 1735 1835
1536 1636 1736 1836
1537 1637 1737 1837
1538 1638 1738 1838
Dwell time
t
561
12