how to regain running process after power failure

[vivek]

how to regain running process after power failure fx 3u plc

[Theo V]

Hi Vivek,

You could use retentive markers, D-words and timers/counters to keep the state of your proces in the memory. See te hardware manual for the exact details. As an example: the retentive range of Markers start at M384.

Best regards,

Theo V.

[kaare_t]

19 hours ago, Theo V said:

Hi Vivek,

You could use retentive markers, D-words and timers/counters to keep the state of your proces in the memory. See te hardware manual for the exact details. As an example: the retentive range of Markers start at M384.

Best regards,

Theo V.

And as a small side not to @Theo V's good answer, Markers (and D-words) can be adjusted to start at 0 (instead of e.g. M384)

[mydear]

Can you show me sample 

[Theo V]

Hi Myanmar,

See the attached Word document for a small example of a retentive drivemotor of a conveyorbelt with start/stop.

I hope this is clear enough. I had some trouble coping from GX developer so it looks a little poor sorry for that. (the result is what matters)

 

Best regards,

Theo V.

Example retentive marker in a FX1S PLC.doc