NI-DAQ NI-9266 Read Open Open Current Loop status bit attribute

[james_007]

Hello everybody,

I am currrently coding an application in Labwindows CVI 2019 to control NI-DAQ sourcing current NI-966 modules racked in a cDAQ-9185 Ethernet chassis. Thos modules are connected to LEDs. I would to know if there is a connection problem on LEDs. Therfore I used DAQmxGetReadAttribute function with DAQmx_Read_OpenCurrentLoopChansExist attribute. The function returns the following message :

"return value == -200452. Specified property is not supported by the device or is not applicable to the task. Property DAQmx_Read_OpenCurrentLoopChansExist

Task Name : (...)

Status Code : -200452

Modules and chassis are defined in NI-MAX in simulated mode.

Thanks in advance for your help.

James

[santo_13]

NI-9266 specifications did not mention that you can read the open-loop status. Did you see it documented that you can read from software the open loop alarm?

[james_007]

Hello Santhosh,

I read it in NI-9266 Getting Started - NI

(right click and open the link). In section "Current Loop Status".

Best regards,

James

 

[santo_13]

Oh, not all features of DAQmx run in simulated mode, hence the error.

Please post if you still observe the error when running with real hardware.