Ramping PLC Output

tvich

Member
Join Date
Jan 2009
Location
Minneapolis
Posts
24
Anyone out there a suggestion for ramping a PLC output for a Logix5000? I could do it with a time entry, and a gain amount, but just figure there'd be something build in for this. Ramp/Soak seems a little excessive for me.

Anyone, Bueller, Anyone, Bueller...

Thanks
 
Try creating a tag. Each scan of the controller add 1 (Ramp Rate) to the tag

Ramp value + Ramp Rate = Ramp value (Ramp Up)

Ramp value - Ramp Rate = Ramp value (Ramp Down)

Of course you need to stop at 0 and whatever the maximum analog Output vqlue is.
Regards
Roy
 

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