Chapter  16  PLC  Function  ApplicationsC2000-HS 
 
16-123
Example: When using r to write a program 
END
K2000
M0
K1000
K1000
FREQ
 
If we force M0 to be 1, the frequency command will be 20.00Hz; but when M0 is set as 0, 
there will be a different situation. 
 
Case 1: When the Pr.09-33 bit 0 is 0, and M0 is set as 0, the frequency command will remain 
at 20.00Hz. 
Case 2: When the Pr.09-33 bit 0 is 1, and M0 is set as 0, the frequency command will change 
to 0.00Hz. 
 
The reason for this is that when the Pr.09-33 bit 0 is 1 prior to PLC scanning procedures, the 
frequency will first revert to 0. 
 
When the Pr.09-33 bit 0 is 0, the frequency will not revert to 0.