The real-time data collection was lost over time

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yasu
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Joined: Fri Jun 11, 2021 3:41 am

The real-time data collection was lost over time

Post by yasu »

Hello

I measured the voltage using only 1ch of PT- 104.
I understand that the data is generated at 720ms intervals.
I would like to collect this data in real-time via the Ethernet protocol.
(Using the program created with reference to the SDK.)
When the data collection interval was set to 1000ms, the real-time data collection was lost over time.
For example, after 60 minutes, the data generated about 3 minutes ago will be collected..
Setting the data collection interval to 100ms, which is less than 720ms, solved this problem.
This problem occurs because the generated data is stored in the internal memory of PT- 104.
think this problem occurred because the generated data was stored in the internal memory of PT- 104 and collected in order from here. Is it correct?

Regards,
Yasu

Gerry
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Re: The real-time data collection was lost over time

Post by Gerry »

Hi yasu,

The PT-104 has no onboard memory. PicoLog 6 polls the data logger for the converted data at the interval that is set for the sample interval (if it is too quick then you start getting the same values, if it is too slow them you start missing values). So, to narrow down the cause of what is going on, my suggestion would be to get it working over USB first and then adapt the code to Ethernet.

Regards,

Gerry
Gerry
Technical Specialist

yasu
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Joined: Fri Jun 11, 2021 3:41 am

Re: The real-time data collection was lost over time

Post by yasu »

Hi Gerry,

Thank you for your comment that the PT-104 has no onboard memory.
I understand now there is no problem by the pt-104.
The problem might be cause by wrong processing method of receive data.
So, We check again whether data receive program maked by us is correct or not.

Regards,

yasu

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