Are the analog outputs updated simultaneously from USB-2627?

[sonbeing]

The user manual and datasheet for USB-2627 states that it is capable of simultaneous analog output, whereas ULHelp.chm shows no SIMULTANEOUS option for AOutScan() (USB-2627).

Q1. Does USB-2627 support simultaneous analog outputs on all channels?

Q2. If so, does AOutScan() function properly with SIMULTANEOUS option?

Thank you.

[Fausto]

Hello @sonbeing.

The USB-2627 has four 16-bit, 1 MHz analog output channels (XDAC0 to XDAC3).  All outputs can be updated at 1 MS/s, regardless of the number of channels in a scan, when set to hardware paced.  A 'simultaneous' scan option in software is not supported.

Regards,

Fausto

[sonbeing]

Thank you for you answer. In fact, I'm developing a S/W for use with USB-2627 or USB-1616HS-4. I was hoping that the code would work with either DAQ without modification.

Could you please check the following statements?

[USB-2627]

- All outputs included in a scan are always updated simultaneously. SIMULTANEOUS option is not supported.

[USB-1616HS-4]

- All outputs included in a scan are always updated simultaneously, only if SIMULTANEOUS option is selected.

 

[Fausto]

The USB-2627 does not use the SIMULTANEOUS option, while the USB-1616HS-4 does.