Power Failure SCXI-1000

[LV_IN_CT]

I have a PCI-6221 connected to a SCXI-1000 with a SCXI-1160 relay module. I have several relay's closed and then I loose power. The question is what state are the relay's in when power is restored?

[Brian F.]

Hello LV_IN_CT. 

Thank you for contacting National Instruments.

The SCXI-1160 is an electromechanical latching relay.  Latching relays maintain their previous state even when the power is lost.  Thus, if you lose power and relay 0 is closed, relay 0 will still be closed when the device is powered back up. 

Let us know if you have any other questions regarding this issue. 

Have a great day!

Brian F
Applications Engineer
National Instruments