Rockwell Automation 1769-L30ER_L30ERM_L30ER-NSE_L33ERM_L33ER_L36ERM CompactLogix 5370 L3 Controllers Quick Start - Manual (Page 22)

22 Rockwell Automation Publication IASIMP-QS023B-EN-P - December 2012
Chapter 1 Prepare the CompactLogix 5370 L3 Controller Hardware
3. Insert the SD card into the SD
card slot.
You can install the SD card in one
orientation only. The beveled
corner should be at the top. An
orientation logo is printed on the
card.
If you feel resistance when
inserting the SD card, pull it out and change the orientation.
4. Gently press the card until it clicks
into place.
5. Close the SD card door.