cyclic output - mistsubishi

[rajivs1107]

Hi,
I need to make an output high for 20s every day at 12:30 pm how i can do this.
I am using A2SH-S1.
Please help.
Thanks in advance.

Rajiv

 

[rajivs1107]

can anyone help please ???????thx

 

[parky]

you need a realtime clock but you could create a clock internally however if the power is lost or plc is stopped then the clock will stop then you would need to reset the time to current time.
The other solution if you have no HMI with a clock is to use a central heating type timer that sets it's relay at 12:30 to turn on an input, this could be used with a timer to create the on pulse length you require (as most CH timers may have only set minimum periods i.e 10,20 mins).