Chassis Grounding Screw; Internal Real-Time Clock - National Instruments cRIO-904 Series User Manual

LED LED Color LED Pattern
SD IN USE Green

Chassis Grounding Screw

The cRIO-904x provides a chassis grounding screw.
1. Chassis Grounding Screw
For information about grounding the cRIO-904x, see "Grounding the Controller" in the
cRIO-904x Getting Started Guide.
For more information about ground connections, visit
.
emcground

Internal Real-Time Clock

The cRIO-904x contains an internal real-time clock that maintains system time when the
cRIO-904x is powered off. The system clock of the cRIO-904x is synchronized with the
internal real-time clock at startup. You can set the real-time clock using the BIOS setup utility
or MAX, or you can set the real-time clock programmatically using LabVIEW.
18 | ni.com | cRIO-904x User Manual
Table 16. SD In Use LED Indicator
Off There is no SD card present in the slot or the
cRIO-904x has unmounted the SD card from the
operating system. It is safe to remove the SD card
from the slot.
Solid The SD card in the slot is mounted in the operating
system. Do not remove the SD card while this LED
is lit.
Figure 5. cRIO-904x Chassis Grounding Screw
Indication
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