Rockwell Automation 1797-OE8H FLEX Ex HART Analog Modules User Manual - Manual (Page 35)

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
)