Rockwell Automation 1797-IE8NF FLEX Ex 8 Input Analog, HART and Noise Filter Module - Manual (Page 35)

FLEX Ex 8 Input Analog, HART, and Noise Filter Analog Modules 35
Publication 1797-5.5 - September 2011
HART Read Back Threshold
HART Read Back Decimal Bits
Value 7 6 5 4 3
15 14 13 12 11
Disabled 0 0 0 0 0 0
Not applicable (1) 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
6% 6 0 0 1 1 0
7% 7 0 0 1 1 1
8% 8 0 1 0 0 0
9% 9 0 1 0 0 1
10% 10 0 1 0 1 0
… … … … … … …
30% 30 1 1 1 1 0
31% 31 1 1 1 1 1
(1) 1, 2, 3, and 4 are not applicable. Values between 1 and 4 will lead the IOM to automatically use
an internal value of 5%.
Square Root Threshold
Square Root Limit Decimal Value Bits Channel
1 0 Ch0
3 2 Ch1
5 4 Ch2
7 6 Ch3
9 8 Ch4
11 10 Ch5
13 12 Ch6
15 14 Ch7
Disabled 0 0 0
2% 1 0 1
5% 2 1 0
10% 3 1 1