Delta PLC High Speed Counter

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mkashifk Participant Join Date: Aug 2012 Posts: 2	Delta PLC High Speed Counter 08/29/2013 4:50 AM
	hi i am using dvp24es2. i am using C251 and C253 hi-speed counter for 2-phase 2 inputs sucessfully but when i add C233 and C234 hi speed counter for more input count, compiler gives an error. i dont know why? i need to write a program to read 4 high speed counters. thank you
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#1 Re: Delta PLc High speed counter 08/29/2013 6:53 AM
	Consider the possibility of the counter function requiring two contiguous bytes of memory. What happens when C234 is changed to C235, for example <rhetorical question - NNTR>? __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#2 In reply to #1 Re: Delta PLC High speed counter 08/29/2013 11:22 AM
	Good eye! I saw the 251-3 skip, but the possible implication didn't register. I hope the OP does reply, so that we can know if this turns out to be the issue. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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LAA_Lucke Guru Join Date: Feb 2010 Posts: 1013 Good Answers: 36	#3 Re: Delta PLC High Speed Counter 08/30/2013 7:40 AM
	There are 2 type of High Speed counters: Software & Hardware types. C251 & C253 are hardware HSC, using X0,X1 & X2,X3 respectively. C233 & C234 are software SHSC using X4,X5 & X6,X7 respectively. You cannot use the same input for 2 different counters. This will give syntax error when executing DCNT instructions. Check that you did not double designate in the firdt place. You should download the Operational manual-programming for the DVP-ES2_EX2...pdf. This will show you how to check the errors as well on the limitations for using the counters etc.
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DavidJohnLee Participant Join Date: Apr 2015 Posts: 2	#4 Re: Delta PLC High Speed Counter 04/30/2015 5:37 AM
	Suggest an industrial automation website to us, may be can help you, there are many delta plc online sale, the most importance is customers can get a technology support 24/7, even weekend, FastToBuy.com
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