LOGO! functions

4.4 Special functions list - SF

Limit value of OT

The value of the operating hours in OT is retained when you reset the hours counter with a signal at input R. The hours counter OT will be reset to zero with a transition from 0 to 1 at Ral. The hours counter OT 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

0 20 40 60 80 100 120

MN

30h

30h

30h

30h

OT

100h20h

MI

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:

%5 0, K

P

%5 27 K

P

%5

4ൺ5(Q

%5

0,ൺ%K

MI is the configurable time interval. The permissible range of values is 0 to 9999 hours.

 

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Manual, 04/2011, A5E03556174-01

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Siemens 6ED1050-1AA00-0BE8 manual P, P 5 4ൺ5Q 5 %K, Limit value of OT
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