Byte order configuration, Digital filter – Rockwell Automation 1797-IE8NF FLEX Ex 8 Input Analog, HART and Noise Filter Module User Manual

Page 26

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26 FLEX Ex 8 Input Analog, HART, and Noise Filter Analog Modules

Publication

1797-5.5 - September 2011

Byte Order Configuration

Byte Order

Group B

Byte Order

Group A

Description

(1)

Bit 9 Bit 8 Bit 1 Bit 0

0

0

0

0

Little Endian Format (Default) = All data entries in true Little
Endian format.

1

0

1

0

Word Swap = Word swap only values requiring more then one
word,

for example: 32 bit float values.

0

1

0

1

Byte Swap (reserved for future implementation) = Byte swap all
words in data table.

1

1

1

1

Big Endian Format (reserved for future implementation) = All data
entries in true Big Endian format.

(1)

All other combinations are invalid. Values will Revert to the last valid configuration (in case of original
start-up this would be default configuration) and set module Diagnostic Status to "2" configuration
failure.

Digital Filter

Digital Filter
frequency

Decimal
Value

Bits

Digital Filter
frequency

Decimal
Value

Bits

2

1

0

2

1

0

10

9

8

10

9

8

0.5 Hz

7

0

0

0

10 Hz

3

1

0

0

1 Hz

6

0

0

1

Not applicable

(1)

2

1

0

1

2 Hz

5

0

1

0

Not applicable

1

1

1

0

4 Hz

4

0

1

1

Not applicable

0

1

1

1

(1)

Decimal Values 2, 1 and 0 are not applicable. Values will Revert to the last valid configuration (in case
of original start-up this would be default configuration) and set module Diagnostic Status to "2"
configuration failure.

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