What is the DDRVI instruction?

DDRVI is the relative positioning command of Mitsubishi PLC 32-bit.

X2——DDRVI K10000 K1000 Y0 Y2
It means: When X2 is turned on, 10000 pulses are sent to Y0 at a frequency of 1KHz with the current position as the starting point, the motor direction is positive direction, and the reaction is on Y2.

DDRVI is based on the data in the current value register as the starting point for adding and subtracting operations. Corresponding to the absolute positioning command DDRVA