Allen-Bradley FLEX Ex 1797-PS2E2 Installation Instructions Manual page 5

The total number of power supplies needed depends on the modules used
and the total system configuration. The following illustration shows how this
example may be configured.
Unsafe
Power
Entrance
1797 power supply
Unsafe
Power
Entrance
1797 power supply
Safe Area
Unsafe
Power
Entrance
1797 power supply
Even though modules may be supplied with power from the same
IMPORTANT
power-supply output channel, galvanic isolation in the module
provides module-to-module galvanic isolation. Depending upon
the module-type, galvanic isolation (channel-to-channel within the
module) may or may not be provided. See the module's
specifications for more information.
IS Pwr
Ex d/e
IS Pwr
IS Pwr
Ex ib
IS Pwr
ACNR Spare IE8
IS Pwr
Ex d/e
IS Pwr
IS Pwr
IS Pwr
Ex ib
ACNR OB4 OB4D
IS Pwr
Ex d/e
IS Pwr
IS Pwr
Ex ib
IS Pwr
RPA
FLEX Ex Power Supply 5
Hazardous Area
Spare
OE8 IRT8 Spare Spare
IBN16 IBN16 IBN16
RPFM RPFM
Publication
1797-IN535F-EN-P - August 2017
IS 1797 I/O
IJ2 IJ2
IS 1797 I/O
IE8 IRT8 OE8
IS 1797 Fiber Hub
41306