VA Motion Controller Programming Manual
15
under complete power-off. The motion controller loads the downloaded program, the data to be
saved (optional), and the resource configuration (optional) into the RAM storage area each time
the program is downloaded, and the CPU automatically copies it to the ferroelectric memory. In
order to achieve permanent preservation. During the use of the motion controller, the PLC will
restore the program and resource configuration from the ferroelectric memory area to the RAM
memory area each time the power is turned on.
The way of Motion controller saving program data while power off;
1) variable initial values stored data
When programming, fill in the corresponding initial value under the variable “initial value”.
When the motion controller is powered on again, the variable saves the initial value data as shown
in the figure below;
2) Variable is set to save the data
When programming, users caNSelect the variable that needs to keep the data after power off.
Under the variable attribute “Usage”, check “RETAIN” to indicate that the variable can keep the
current value of the variable before the power is turned off after the motion controller is powered
off value. Generally, it is used when not communicating with peripherals. (Users need to pay
attention to the “RETAIN” when the variable is checked. No natural number can be filled in the
“initial value”. Otherwise, the value of the variable is still the data of the initial value after
repowering, instead of The data modified before power down) as shown.
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