timer set up

john123 · Oct 17, 2010

Hi, need your help please
afted high limit signal/ it starts the 20min time laps, the output turns off and stays off
I would like to change this to
during the time laps if the high limit signal is senced
the output is kept on for a additional 20 min ect
thankyou
regards
john

pokajy · Oct 17, 2010

which plc u're using?
if it's s7-300 or 400

If you need extra 20 minutes you must put "off delay timer" before your output.

S_OFFDT TV= S5T#20M

john123 · Oct 17, 2010

Hi
the plc is a mitsubishi al20mrd
micro plc
would like to have a contionous 20min extension if high limit is senced at each time count down
hope this makes sence
regards
john

john123 · Oct 17, 2010

Hi pokajy
Thankyou for advise
yes turned off delay timer ,and added a second timer block
thankyou for your help works now
regards
john

504bloke · Oct 17, 2010

Post the project zipped and someone will help

Have you got gx developer and the required cable?

My answer would personally be chuck it out and buy a proper plc

john123 · Oct 17, 2010

Hi 504bloke and all
thankyou for replys

i have completed my project

john

john123 · Oct 18, 2010

most used plc

Hi
can i ask for some advise
what is the most used plc used
i will be getting a new one soon
mitsubishi fx3 ok?
regards
john

john123 · Oct 24, 2010

help with relay outbut change over

Hi all
can anyone help
plc output / i need to do a change over the polarity forword/reverce for motor
how is it done
regards
john

timer set up

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