S7-300 robust timer

kyoq

Member
K
Join Date
Sep 2006
Location
Poland
Posts
18
Hi, I want to use 'robust timer' i.e. when timer is counting and the PLC is switched off and on the PLC 's timer will continue counting (not start counting from beginning) ?
 
Last edited:
Create your own, count timed pulses in a part of memory that is retentative, i.e. a dataword or a memory flag set as retentative.

Don't use a counter, but add 1 to an integer.
 
You can make timers retentive by configuring them in the cpu properties in the h/w cconfig editor.
 

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