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PWM input in sinc. with encoder pulses


natasam

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Some more hardware info would help.

How many inputs how many outputs.

which E series card are you using.

how fast do you need to aquire the data.

what is the counts per revolution of the encoder.

also any code you have already written.

I do a rotational aquisition on a current project I'm working on.

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I am using 6533 HS DIO card together with PCI MIO XE10, and they are connected via RTSI cable. One analog input for the torque works fine, but the PWM which runs on 125Hz can not get sync with the encoder inputs. 12 bit digital input is also OK. Since the IC circuit on UUT is slow the speed is only 25 RPM, which means that for 70 degrees I need about 2300 scans. If the speed is higher I get about 660 scans when for each forward and reverse rotation.

While the encoder is running I can not get even the simplest pulse width or period vi working properly, but if that is overcome at some point I still need some IO connection to get the 2 counters to measure PWM input from sensor at specific time.

Thank you for any suggestion.

Natasa

Some more hardware info would help.

How many inputs how many outputs.

which E series card are you using.

how fast do you need to aquire the data.

what is the counts per revolution of the encoder.

also any code you have already written.

I do a rotational aquisition on a current project I'm working on.

5880[/snapback]

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