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Rockwell Automation 1797-OE8H FLEX Ex HART Analog Modules User Manual User Manual

Page 35

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Publication 1797-6.5.3 - March 2006

Understand Configurable FLEX Ex Analog Module Features 2-5

5

4…20 mA
as %

0.16% of
4…20 mA

2…22 mA

-1250 … +11250
(2’s complement)
(-12.50% …
+112.50%)

625

With
error
steps

6

4…20 mA
as

√%

0.17% of
4…20 mA

4…22 mA

0…10607
(0…106.07%)

589

With
error
steps,
under-
range not
allowed

7

4…20 mA
as
unsigned
integer

0.03% of
4…20 mA

4…20 mA

0…65535
(4…20 mA)

4095

With
error
steps

8

Not assigned

9

10

11

0…20 mA
as A/D
count

0.04% of
0…20 mA

0…22 mA

0…55000
(0…22 mA)

2500

All fixed

12

4…20 mA
as %

0.16% of
4…20 mA

3.6…21
mA

-250 … +10625
(2’s complement)
(-2.50…
+106.25%)

625

NAMUR
NE 4
all fixed

13

4…20mA
as %

0.16% of
4…20 mA

3…21 mA

-625 … +10625
(2’s complement)
(-6.25…
+106.25%)

All fixed

14

4…20 mA
as %

0.16% of
4…20 mA

2…22 mA

-1250 … +11250
(2’s complement)
(-12.50…
+112.50%)

15

Not assigned

Table 2.3 1797-IE8H Data Formats

Data
Format

Format

Resolution Input

Range

Module Data Processing

Data Table Value
(Interpretation)

Count
per mA

Error
Steps

Datatable = 10000

input-4

(

16

)

Datatable = 10000

input-4

16

IF…Square_Root_Threshold

input-4

16

< 10000

Else…datatable = 0

Datatable = 65535

input-4

(

16

)

Datatable = 55000

input

(

22

)

Datatable = 10000

input-4

(

16

)

Datatable = 10000

input-4

(

16

)

Datatable = 10000

input-4

(

16

)

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