Rockwell Automation 1756-SPESMNRMXT GuardLogix Controllers User Manual - Manuel (Page 29)

Rockwell Automation Publication 1756-UM020I-EN-P - August 2012 29
Install the Controller Chapter 2
3. Align the circuit board with the top and bottom guides in the chassis.
4. Slide the controller into the chassis.
The controller is fully installed when it is flush with the power supply or
other installed modules and the top and bottom latches are engaged.
After you have inserted the controller into the chassis, see Chapter 9 for
information on interpreting the status indicators on the primary controller
and safety partner.
Insert or Remove a Memory
Card
1756-L7 xS controllers use Secure Digital (SD) cards. See page 30 .
1756-L6 xS controller use CompactFlash (CF) cards. See page 32 .
IMPORTANT You must install the safety partner in the slot immediately to the
right of the primary controller. Follow steps
3 and 4 above to install
the safety partner.
WARNING: When you insert or remove the memory card when power is
on, an electrical arc can occur. This could cause an explosion in hazardous
location installations. Be sure that power is removed or the area is
nonhazardous before proceeding.
ATTENTION: If you are not sure of the contents of the memory card,
before you install the card, turn the keyswitch of the controller to the
PROG position. Depending on the contents of the card, a power cycle or
fault could cause the card to load a different project or operating system
into the controller.