MVP 2022 Flex727 Posted November 16, 2022 MVP 2022 Report Share Posted November 16, 2022 Can someone verify for me that the frequency measurement performed by a V200-18-E1B HSC reads out directly in Hz, with no implied decimal, such as obtained from a thermocouple? Quote Link to comment Share on other sites More sharing options...
Gabriel Franco Posted November 16, 2022 Report Share Posted November 16, 2022 Long time ago I used frequency measurement using V200-18-E3XB and it gives Hz directly with no decimals. Had to wire both I0 and I1 to the same encoder output to achieve it Quote Link to comment Share on other sites More sharing options...
MVP 2022 kratmel Posted November 16, 2022 MVP 2022 Report Share Posted November 16, 2022 It is in Hz for High Speed Counter As far as I remember, with Shaft encoder, it is 2 or 4 times larger, depending on the selected encoder. Quote Link to comment Share on other sites More sharing options...
MVP 2022 Flex727 Posted November 16, 2022 Author MVP 2022 Report Share Posted November 16, 2022 Thank you both. Quote Link to comment Share on other sites More sharing options...
John_R Posted November 17, 2022 Report Share Posted November 17, 2022 Flex, you're reading frequency with a thermocouple? I've never tried that...😁 1 Quote Link to comment Share on other sites More sharing options...
MVP 2022 Ausman Posted November 17, 2022 MVP 2022 Report Share Posted November 17, 2022 Yeah John, you hold the cable and swing it in circles in your hand, and it senses the changes in the earth's magnetism each time it goes round and gives you Hz. That is....it gives you hurts if you mistime the swing and it hits your head. Quote Link to comment Share on other sites More sharing options...
John_R Posted November 17, 2022 Report Share Posted November 17, 2022 Well, I'm using type T thermocouples out in my home workshop for climate control, as well as one outside so I can check the outdoor temp from in the house (via Remote Access). I seem to have a problem with accuracy on the outdoor T/C though, mostly because at times it is influenced by the position of the sun. Perhaps if I mount the T/C on the blade of a little windmill, that drives an encoder, then I can synchronize the read of the T/C with the point of rotation that the T/C is blocked from direct sun by the other blades. Now, do I put the T/C on the HSC inputs and the Encoder on the T/C input, or vice-versa? 🌞 Quote Link to comment Share on other sites More sharing options...
MVP 2022 Joe Tauser Posted November 20, 2022 MVP 2022 Report Share Posted November 20, 2022 The question has already been answered as "yes, the frequency on the basic HSC configuration is in Hz." Integer hertz. Little known Visilogic trivia- if you need frequency resolution greater than 1 Hz you can use the "Frequency Measurement based on HSC" function block cleverly located in the Utils->Immediate menu. It returns frequency in 0.01 Hz resolution. Very handy for speed control applications where you don't have the luxury of an encoder; i.e. a prox on a bolt sensing speed. On 11/17/2022 at 3:14 PM, Ausman said: That is....it gives you hurts if you mistime the swing and it hits your head. That's actually pretty clever. 😄 Joe T. Quote Link to comment Share on other sites More sharing options...
MVP 2022 Flex727 Posted November 22, 2022 Author MVP 2022 Report Share Posted November 22, 2022 Thanks, Joe. Quote Link to comment Share on other sites More sharing options...
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