dmardinly Member D Join Date Sep 2005 Location athens Posts 40 Jul 6, 2015 #1 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
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 Member Join Date May 2007 Location giza Posts 153 Jul 6, 2015 #2 for me it is easier to use 3 counters for seconds and minutes and hours and counting at motor contactor energizerd
for me it is easier to use 3 counters for seconds and minutes and hours and counting at motor contactor energizerd
boneless Lifetime Supporting Member + Moderator Join Date Feb 2008 Location OKC Posts 1,628 Jul 6, 2015 #3 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.
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 Lifetime Supporting Member + Moderator Join Date Feb 2003 Location ᚴᚬᛒᛅᚾᚼᚬᚠᚾ Posts 16,342 Jul 6, 2015 #4 I think he is asking "in case of power failure do the runing hours return to zero or keep the status ?"
I think he is asking "in case of power failure do the runing hours return to zero or keep the status ?"
boneless Lifetime Supporting Member + Moderator Join Date Feb 2008 Location OKC Posts 1,628 Jul 6, 2015 #5 That is what I read as well .
dmardinly Member OP D Join Date Sep 2005 Location athens Posts 40 Jul 6, 2015 #6 yes i ask if that correct i used sfc64 with output ld for retentive data , and using sfc64 only one for each motor
yes i ask if that correct i used sfc64 with output ld for retentive data , and using sfc64 only one for each motor