Rockwell-automation 1797-OE8H FLEX Ex HART Analog Modules User Manual Manual de usuario Pagina 45

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Publication 1797-6.5.3 - March 2006
Understand Configurable FLEX Ex Analog Module Features 2-15
Table 2.11 Data Format - Write Words 0 and 1
Table 2.12 Error Level 0.1mA Steps
Bits Description
Word 0 04030201Data format for channels 03
Word 1 04030201Data format for channels 47
0000022 mA, w/error steps (default)
0001022 mA = 0110%, w/error steps
0010022 mA = 0104.8%, square root, w/error steps
0011022 mA = 065,535, unsigned integer, w/error
steps
0100222 mA, w/error steps
0101222 mA = -12.5112.5%, w/error steps
0110422 mA = 0106%, square root, w/error steps
0111420mA = 065,535, unsigned integer, w/error steps
1000Not assigned
1001Not assigned
1010Not assigned
1011022 mA = A/D count, w/fixed error
11003.621 mA = NAMUR NE 43, w/fixed error
1101321 mA = -6.25106.28% w/fixed error
1110222 mA = -12.5112.5% w/fixed error
1111Not assigned
Bits Description
Word 0 131211109 Error level channels 03
Word 1 131211109 Error level channels 47
00000Disabled
0.1 mA * step value = remote fault alarm threshold
Examples
Data
Format
2…22
mA
-12.5…
112.5%
00111Step value = 7, 0.1 mA * 7 = 0.7 mA
Remote fault alarm at -4.38% or +104.38%
01111Binary value = 15, 0.1 mA * 15 = 1.5 mA
Remote fault alarm at -9.38% or + 109.38%
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