motor run time meter - CPU - 315-2DP

[dmardinly]

Hello, I used SFC64 TO MEASURE MOTOR RUN TIME , OUTPUT : LD Memory , in case of power failure runing hours return to zero or keep the status , please advice

 

[Moustafa Elsherief]

for me it is easier to use 3 counters for seconds and minutes and hours and counting at motor contactor energizerd

 

[boneless]

The only way you can use SFC64 is with retentive data. So in case of failure the value should be retained.

You might want to share how you have implemented this.

 

[JesperMP]

I think he is asking "in case of power failure do the runing hours return to zero or keep the status ?"

 

[boneless]

That is what I read as well .

 

[dmardinly]

yes i ask if that correct i used sfc64 with output ld for retentive data , and using sfc64 only one for each motor