Rockwell Automation 1756-DHRIOXT ControlLogix-XT Data Highway Plus-Remote I/O Communication Interface Module - Manual (Page 12)

12 ControlLogix-XT Data Highway Plus-Remote I/O Interface Module
Publication 1756-IN638A-EN-P - March 2009
Determine Module Slot Location
You can use the ControlLogix-XT chassis that suits your application
requirements. The 1756-DHRIOXT modules can be:
• installed in any open chassis slot.
• used in multiples in one chassis, within the limits of the
ControlLogix-XT power supply.
Installing and Removing the Module Under Power
WARNING
When you insert or remove the module while backplane 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.
Repeated electrical arcing causes excessive wear to contacts on both the
module and its mating connector. Worn contacts may create electrical
resistance that can affect module operation.
Slot 0 Slot 1 Slot 3 Slot 2
31918--M
Slot 4