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Fast Analogue data capture

Created by: sgroi at: 1/4/2018 9:59 AM (4 Replies)

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1/4/2018 9:59 AM	Rate (1)
sgroi Posts: 2 Rating: (1)	Hi ! I'm using a plc 1200 and I need to acquire a current pulse. Frequency is 6-20 Hz, the pulse is 0,9/1 ms and magnitude is 20-60 A. I'm using a hall current sensor to convert the signal in a voltage signal (0-5 Volts). The problem is my PLC can non read the value fast enought . I would need to read at least every 100 microsecond to get my pulse (1 ms).Analog input read every ms. I need to mesure the average current and possibly thee peak current. Can someone give me some tip. thanks in advance Giuseppe
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1/4/2018 10:54 AM	Rate (0)
SCOTT123 Bronze Member Joined: 10/16/2007 Last visit: 12/19/2024 Posts: 637 Rating: (45)	Hello Guiseppe, we used a ET200S with special analog input that can read approximately every 100microsecond and buffer the values and send it to to main plc. But we had a S7-1500. I don't know if this works with S7-1200. Regards

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1/4/2018 12:51 PM	Rate (0)
sgroi Posts: 2 Rating: (1)	Hi thank you for your quick answer. I'm going to check if I can use with the 1200.
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1/9/2018 3:16 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 12/23/2024 Posts: 15531 Rating: (2461)	Perhaps a high speed counter and 0-5 V signal module applied to the plc itself? You then use the pulse width for your averaging. sgroi Hi ! I'm using a plc 1200 and I need to acquire a current pulse. Frequency is 6-20 Hz, the pulse is 0,9/1 ms and magnitude is 20-60 A. I'm using a hall current sensor to convert the signal in a voltage signal (0-5 Volts). The problem is my PLC can non read the value fast enought . I would need to read at least every 100 microsecond to get my pulse (1 ms).Analog input read every ms. I need to mesure the average current and possibly thee peak current. Can someone give me some tip. thanks in advance Giuseppe
	science guy
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3/23/2018 5:06 PM	Rate (0)
magnet123 Posts: 11 Rating: (0)	Did you resolve your problem of fast analogue data capature. I am looking for a similar solution.
magnet123 Posts: 11 Rating: (0)
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