Siemens 6ED1050-1AA00-0BE8 Manual De Usuario

LOGO! functions 

 

4.4 Special functions list - SF 

 

LOGO! 

208

 

Manual, 04/2011, A5E03556174-01 

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 

MN

OT

30h

30h

30h

30h

20h

100h

MI

0

20

40

60

80

100

120

 

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: 

P

0, K

%5

0,ൺ%K

%5

 

P

27 K

%5

 

4ൺ5(Q

%5

 

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