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time delay on relay release
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Topic: time delay on relay release (Read 9826 times)
temp
Newbie
Posts: 1
I'm a llama!
time delay on relay release
«
on:
June 18, 2005, 08:09:49 AM »
On the T100MD I close and open a relay at a certain frequency as follows:
if pulseperiod(1) < 33000 then
setio out1
else
clrio out1
endif
how do I insert a delay (say 5 seconds) before the relay releases? I need a certain amount of hysteresis in the circuit.
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support
Global Moderator
Hero Member
Posts: 3174
Re:time delay on relay release
«
Reply #1 on:
June 20, 2005, 03:42:56 PM »
You can use Out1 to trigger a timer (lets call it T1)
Then before you execute the CLRIO statement, perform a check:
.....
ELSE
IF TESTIO(T1) = 1
CLRIO OUT 1
ENDIF
ENDIF
This way, OUT1 will not be cleared unless T1 contact closes.
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time delay on relay release