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fast counter on cpu 314 2dp

Created by: sukhoi at: 1/30/2015 6:23 PM (4 Replies)

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1/30/2015 6:23 PM	Rate (0)
sukhoi Advanced Member Joined: 11/19/2011 Last visit: 7/22/2024 Posts: 88 Rating: (1)	hello can you explain how to set the parameters with an incremental encoder

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1/30/2015 7:15 PM	Rate (1)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 9/10/2024 Posts: 12282 Rating: (2683)	Hello sukhoi; You will find infformation on configuration of the encoder parameters, for counting and for positionning, in the following documents: Configuring the "Signal evaluation:" parameter in 31xC CPUs using the technological function "Count" SIMATIC S7-300 CPU 31xC Technological Functions SIMATIC S7-300 First Steps in Commissioning CPU 31xC: Positioning with analog output SIMATIC S7-300 First Steps in Commissioning CPU 31xC: Positioning with digital output Hope this heps, Daniel Chartier

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1/30/2015 7:17 PM	Rate (1)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (715)	Hello, Yes, but tell us what cpu you have, 6es7 xxx xxxx? What software you use, Tia or step7. Regards, Marcjan.
	Last edited by: Marcjan at: 1/30/2015 7:19 PM Daniel was faster :-) Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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1/30/2015 10:06 PM	Rate (0)
sukhoi Advanced Member Joined: 11/19/2011 Last visit: 7/22/2024 Posts: 88 Rating: (1)	the cpu is 314 c 2dp and i'am using step 7 . ineed to know what is the difference between : continuous ,periodic ....
	Last edited by: sukhoi at: 1/30/2015 10:43 PM
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1/31/2015 12:54 AM	Rate (0)
Ton Verra Gold Member Joined: 4/20/2007 Last visit: 9/12/2024 Posts: 724 Rating: (42)	Check the help files in Step 7: Continuous: After the counter reaches its upper limit it jumps to the lowest counting limit at the next count pulse and resumes the count from there. After the counter reaches its lower limit it jumps to the upper counting limit at the next count pulse and resumes the count from there. Those counting limits are set fixed to the maximum counting range. The count in this operating mode starts and stops via the gate function. Periodic: If the main count direction of the counter is up and the counter has reached the end value - 1, the arrival of an additional count pulse causes the counter to jump to the load value from where it continues counting. If the main count direction of the counter is down and the counter has reached the count value = 1, the arrival of an additional count pulse causes the counter to jump to the start value (load value) from where it continues counting. The count limits are set to the maximum counting range if a main count direction is not configured. In this operating mode, counting is started and stopped via the gate function. When the gate opens, the counter can receive count pulses and the count starts. When the gate is closed, the counter can no longer receive count pulses and the count stops.

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