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Safe area hazardous area – Rockwell Automation 1797-OE8H FLEX Ex HART Analog Modules User Manual User Manual

Page 107

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Publication 1797-6.5.3 - March 2006

Apply FLEX Ex Analog I/O Modules 6-9

Assign the next module to another output as before. When all four power
supply outputs are utilized, add another power supply to the system, see the
figure below.

IS Pwr

Safe Area

Hazardous Area

1797 power supply

1797 power supply

1797 power supply

ACNR

Spare

IE8H

OE8H

IRT8

Spare

Spare

IJ2

IJ2

ACNR

OB4D

OB4D

IBN16

IBN16

IBN16

IE8

IRT8

OE8H

RPA

RPFM

RPFM

IS 1797 I/O

IS 1797 I/O

IS 1797 Fiber Hub

IS Pwr
IS Pwr
IS Pwr

IS Pwr
IS Pwr
IS Pwr
IS Pwr

IS Pwr
IS Pwr
IS Pwr
IS Pwr

EEx d
/e

EEx ib

EEx d
/e

EEx ib

EEx d
/e

EEx ib

41306

Unsafe
Power
Entrance

Spare

ATTENTION

Power supply outputs can never be paralleled.
Paralleling outputs voids all intrinsic safety
certifications.

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