Rockwell Automation 1794-OF8IH FLEX Isolated Input/Output HART Analog Modules User Manual
Page 46
Publication 1794-UM065B-EN-E - September 2010
34 1794-IF8IH and 1794-OF8IH Configuration
1794-IF8IH Channel Data Formats
Format
(1)
Bits
Format Name
Signal Range
User Range
Resolution
15 14 13 12
11 10 9
8
7
6
5
4
LO
HI
LO
HI
3
2
1
0
0
0
0
0
0
0…20 mA in Milliamps
0.00
22.00
0 (0.000 mA)
22000 (22.000 mA)
1.0 µA
1
0
0
0
1
0…20 mA in % Full Scale 0.00
22.00
0 (0%)
11000 (110.00%)
2.0 µA
3
0
0
1
1
0…20 mA in UINT
0.00
20.00
0
65535
0.3052 µA
4
(2)
0
1
0
0
4…20 mA in Milliamps
2.00
22.00
2000 (2.000 mA)
22000 (22.000 mA)
1.0 µA
5
(2)
0
1
0
1
4…20 mA in % Full Scale 2.00
22.00
-1250 (-12.50%)
11250 (112.50%)
1.6 µA
7
(2)
0
1
1
1
4…20 mA in UINT
4.00
20.00
0
65535
0.2441 µA
(1)
All other formats are invalid.
(2)
HART Communications supported with these data formats only.
1794-IF8IH Channel Digital Filter
Digital Filter frequency Decimal
Value
Bits
10
9
8
2
1
0
470 Hz
0
0
0
0
62 Hz
1
0
0
1
19.6 Hz
2
0
1
0
16.7 Hz
3
0
1
1
10 Hz
4
1
0
0
4.17 Hz
5
1
0
1
Not applicable
6
1
1
0
Not applicable
7
1
1
1
1794-IF8IH HART Current Ratio
HART Current
Ratio Limit
Decimal
Value
Bits
15
14
13
12
11
7
6
5
4
3
Disabled
0
0
0
0
0
0
Not applicable
1
0
0
0
0
1
Not applicable
2
0
0
0
1
0
Not applicable
3
0
0
0
1
1
Not applicable
4
0
0
1
0
0
5%
5
0
0
1
0
1