Graph is non-remanent?

Hi

it seems that Graph-blocks are non-remanent, if we have a power failure the active step is lost and we have to start all over again.

Is there any easy way to get round of this, as our sequence should continue after power failures too?.

Hi RaimoV,

U should use bits/words from retentive data area for conditions/state inside graph. OB100 should not reset addresses used inside graph.

RaimoV

Hi

it seems that Graph-blocks are non-remanent, if we have a power failure the active step is lost and we have to start all over again.

Is there any easy way to get round of this, as our sequence should continue after power failures too?.

 I have had this problem too. 

 But there is a easy way to solution it. 

Just do what this link say: To which differences should you pay attention in the case of retention when you migrate a GRAPH-FB in STEP 7 (TIA Portal) from S7-300/S7-400 to S7-1500?

Hello

this is good news, I actually did the sequensing code by myself to overcome the non-retentivity, but of course i did not do all fancy stuff a real GRAPH-code has..

So now I know how to implement the next complicated machine sequence.

Thanks!.