Question regarding Network heartbeat

[Iniesta_Luján]

Hello

I'm really appreciated if anyone help me out whether Veristand has network heartbeat functionality on it.

[background]

I use Veristand for HIL with PXI-RT.

For safety reason, I would like to stop other mechanical and electrical facilities when communication between Windows host PC and PXI-RT Target lost for some reasons, such as Windows freeze and Network trouble.

So I would like to detect communication failure on PXI-RT, and then turn off mechanical relay.

Any advice would be greatly appreciated.

thanks regard

[ypi]

From where would you actuate the facilities? and how?

[ecleary42]

I would simply use a user a channel within your VS project called PC Watchdog and broadcast your host PC heartbeat to this using the workspace manager over the Veristand gateway

I would then have a simple watchdog "model" (I've taken to thinking of these as scripts as they are just a piece of code and dont have to be models) that outputs a boolean high when your watchdog is trippped

You could have an alarm watch this output from your watchdog model that when tripped runs a procedure that closes relays and such as desired

[ATarman]

I've used this watchdog method:  https://forums.ni.com/t5/NI-VeriStand/Configure-Watchdog-in-Veristand/td-p/2717405?profile.language=...

You could adapt it for your needs.  

[SWSanville]

I am still a little confused about the functionality of the watchdog timer when it comes to verifying that the computer and RT controller are communicating. It seems like the watchdog is looking at the RT controller and is making sure it is still looping. How does it pick up a disconnection between the computer and the controller? 
On some of our older stands, we are running a labview program on the PC in correlation with a program on a fieldpoint controller. Super easy to trigger an error and a shutdown on the controller when TCP drops out. I'm a bit confused about what is running on the RT controller and computer in the VeriStand environment and how to get the controller to bring itself to a safe state if communication is lost.