Yaskawa MP900 Series Ladder Programming Manual - Manual (Page 410)

E.1 General Precautions
E-2
E.1 General Precautions
( 1 ) Do Not Forget to Save The Data to Flash Memory When You Change or Transfer a Pro-
gram
Do not forget to save the data to flash memory when you change or transfer a ladder program or motion program. If
you do not, any changes that were made to the program will be lost when the power supply to the Machine Controller
is turned OFF.
E.2 Precautions on Motion Parameters
( 1 ) Do Not Use a Subscript to Reference a Motion Register from an I/O Register
I/O registers and motion registers are not assigned to consecutive memory locations.
When using a subscript, make sure that you access registers within the range of I/O registers or within the range of
motion registers.
IW0000/OW0000
IW7FFF/OW7FFF
IW8000/OW8000
IWFFFF/OWFFFF
I/O registers
Motion registers
Example:
I = 1;
OW7FFFi = 0;
Not accessible.
Accessible.
Accessible.