User Manual

LOGO! functions
4.4 Special functions list - SF
LOGO!
Manual, 06/2014, A5E33039675
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Ral. It continues the count as long as En = 1, irrespective of the status at the reset input R.
The counter limit of OT is 99999 h. The hours counter stops when it reaches this value.
In programming mode, you can set the initial value of OT. MN is calculated according to the
following formula when reset input R is never enabled: MN = MI - (OT % MI). The % operator
provides an integer division remainder.
Example:
MI = 30h, OT = 100h
MN = 30 - (100 % 30)
MN = 30 -10
MN = 20h
In runtime mode, the value OT can not be preset. If the value for MI is changed, there would
be no calculation for the MN. MN would take on the value of MI.
Setting the Par parameter
View in programming mode:
MI
is the configurable time interval. The permissible range of values is 0 to 9999 hours.
For information on how to assign the actual value of another already-programmed function to
a parameter, see the On-delay (Page 136) topic.
View in parameter assignment mode: