Configuring Current & Strain Module

[WilliamBrown-Saja]

I'm working with a cDAQ  9185 with current input module (NI-9253) in slot 4 and strain module (NI-9237) in slot 2.

On the current module I would like to enable Field Side Power detection so that there is a positive indication of power availability. Likewise, Input Limits Detection.

I've looked through MAX and the Hardware Configuration app but neither of these offered any solutions. A look through flexlogger didn't reveal any immediate means of doing so either.

On the strain module, I need to configure the module to deliver a 5V excitation voltage - again, I was unable to find a means of doing so through the previously mentioned avenues.

Is it possible to use Flexlogger to achieve the above? If so, if anyone could point me to the sections or guides that explain this I would appreciate it.

Thanks in advance.

[mnugent]

I'm not sure about Field Side Power Detection on the 9253, but for the Limits detection, FlexLogger does offer Alarms in the channel specifications. You could set up an alarm (and also take action on that alarm) if your current goes beyond certain limits.

As for the 9237 strain module, we use them frequently in our lab. You 100% can configure the internal excitation level in FlexLogger. It's in the channel specification tab / channel configuration window. Now, the 9237 card itself has some pretty restrictive limits on how much power it can provide and will auto downregulate it's excitation voltage if the max power draw is exceeded, but that is beyond FlexLogger. If your hardware draws too many amps at 5V excitation, the 9237 allows for you to connect an external excitation power supply. In that case, the channel configuration window in FlexLogger can be used to configure the 9237 to use the external excitation rather than the internal excitation.

[Darylld]

Hi WIlliam, 

To enable the Field Side Power Detection of the NI-9253 current module you can use the FPGA I/O Property Node. This can be accessed in LabView and easily modify the properties of the NI-9253 module. The link to the configuration of the FPGA Property Node for the NI-9253 is here. You just need to enable this in LabView once and then shoudl theoretically work perfectly using FlexLogger.

As mentioned in the previous reply by @mnugent, you can use the Alarms feature under the FlexLogger Channel Specification tab for the limits detection.

Regarding the NI-9237 strain module, you can configure the excitation voltage for this module in the FlexLogger Channel Specification tab. This is also detailed clearly in the previous reply. However, do revert back if you need any further assistance.

Thank you