Setting method from the CPU module
The following shows the data settings and program example for changing the target position of axis 1 by the command from
the CPU module. (In this example, the target position value is changed to "300.0 m" and the command speed is changed to
• The following data is set. (Set using the program referring to the target position change time chart.)
n: Axis No. - 1
Target position change value (New address)
Target position change value (New speed)
Target position change request flag
Refer to the following for details on the setting details.
Page 504 Control Data
• The following shows the time chart for target position change.
■RD77MS4 operation example
Positioning start signal
PLC READY signal
All axis servo ON
Start complete signal
([Md.31] Status: b14)
Positioning complete signal
([Md.31] Status: b15)
Error detection signal
([Md.31] Status: b13)
[Cd.27] Target position change
value (New address)
[Cd.28] Target position change
value (New speed)
[Cd.29] Target position change
• Add the following program to the control program, and write it to the CPU module.
Page 571 Target position change program
Set the new address.
Set the new speed.
Set "1: Requests a change in the
Buffer memory address
8 CONTROL SUB FUNCTIONS
8.5 Functions to Change the Control Details