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Technical support / Re:rpm counter
« on: August 11, 2008, 11:32:21 AM »
thanks for the ALL the help
I'll let ya know how it turns out
Charlie
I'll let ya know how it turns out
Charlie
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Technical support / Re:rpm counter
« on: August 10, 2008, 08:54:11 AM »
NICE!!!!
still a little fuzzy on (M) value...i.e. CORRECT value of M
What this should do is on a race car as the engine accelerates (from 1000 to 9000 rpm) is to check if the engine rpm increases more than 500 rpm in .1 seconds . I want to ignore decelerations
Would PULSEFREQUENCY(1) = (.1) for my circuit?
What is the shortest time base I could assign.... (.01)?
I do in fact receive one 12volt pulse per engine revolution
This is an amazing little box..I have used it for SO many applications.
still a little fuzzy on (M) value...i.e. CORRECT value of M
What this should do is on a race car as the engine accelerates (from 1000 to 9000 rpm) is to check if the engine rpm increases more than 500 rpm in .1 seconds . I want to ignore decelerations
Would PULSEFREQUENCY(1) = (.1) for my circuit?
What is the shortest time base I could assign.... (.01)?
I do in fact receive one 12volt pulse per engine revolution
This is an amazing little box..I have used it for SO many applications.
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Technical support / Re:rpm counter
« on: August 08, 2008, 12:33:35 PM »
actually the time base should be .1 seconds
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Technical support / Re:rpm counter
« on: August 08, 2008, 12:19:20 PM »
yes t100md but would like to convert to small plc you sell.
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Technical support / Re:rpm counter
« on: August 08, 2008, 12:18:20 PM »
there is not a normal rpm it will vary from 1000 to 9000.
I want to detect a e.g. 500rpm increase if they occur faster than e.g. 1ms
I want to detect a e.g. 500rpm increase if they occur faster than e.g. 1ms
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Technical support / rpm counter
« on: August 08, 2008, 11:59:45 AM »
I have no idea how to write this custom function..any help please
I want to limit X amount of rpm's over X amount of time
(rpm's = 12 volt pulses)
If rpm's increase more than X from current read rpm's over X amount of time, turn on output 1. Then reset and restart function.
This function will allow me to detect engine rpm abnormal increses and retard ignition timing momentarily to stop wheel spin
Thanks for any help
I want to limit X amount of rpm's over X amount of time
(rpm's = 12 volt pulses)
If rpm's increase more than X from current read rpm's over X amount of time, turn on output 1. Then reset and restart function.
This function will allow me to detect engine rpm abnormal increses and retard ignition timing momentarily to stop wheel spin
Thanks for any help
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