WebDAQ 504: Sample Rate 1Hz ; get data with 01 sample/second

[DangHuynh]

Dear Sir/Madam,

We are using a WebDAQ 504. We would like to configure with  every 01 sample/second. So I need to select Sample Rate 1 Hz

From Acquisition tab  Sample Rate. It shows Min: 1651.61 Hz to Max: 51200.00 Hz . 

How can we get the data with every 01 sample/second? Please help us to solve this.

Thank you so much
Best regards,
Dang 
 

[Fausto]

Hello @DangHuynh.

The WebDAQ 504 does not support a sample rate of 1 Hz.  Your options are to post process the data collected or you can develop a custom application with the WebDAQ's REST API.  The application would read the data while a job is running and save the data to a user buffer or file.

WebDAQ REST API Help File:  https://www.mccdaq.com/downloads/WebDAQ/REST-API/1.0.0/webdaq-rest-api.html

Read Data call:  https://www.mccdaq.com/downloads/WebDAQ/REST-API/1.0.0/webdaq-rest-api.html#job-information-read-data-get

WebDAQ REST API:  https://mcc.download.ni.com/#downloads/WebDAQ/REST-API/1.0.0/

 

Regards,

Fausto

[DangHuynh]

Hello Fausto,

Thank you for your response. If the sample rate is so high ( ex 51200 Hz), So the file will be big data. Is it problem with internal memory in WebDAQ?

Best regards,

Dang

[Fausto]

Hello @DangHuynh.

Acquired data can be logged to WebDAQ's internal storage location (up to 3 GB), a mapped network storage location, or to user-supplied external media.

Datasheet:  https://www.mccdaq.com/pdfs/specs/DS-WebDAQ-504.pdf

User's Guide:  https://www.mccdaq.com/pdfs/manuals/WebDAQ-504.pdf

Help file:  https://www.mccdaq.com/PDFs/Manuals/WebDAQ/help/en/index.html?WEBDAQ504

Regards,

Fausto

[DangHuynh]

Hello Fausto,

Thank you again. Yes, If i use the internal storage,  and it is full. Can the data still be logged to WebDAQ's internal storage location, can't it?

Thank you so much

Regards,

Dang