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10.5.9 Value representation process automation (NE 43), 16 bit representation
The hexadecimal value transmitted by the module has to be interpreted as decimal value, which
corresponds, if multiplied with a defined factor, to the analog value.
Example:
Process value:
– dec. 15020
– hex. 3AAC
Output current 15.02 mA
dec. hex. unipolar 0…20 mA
dec. value = 1000 [1/mA] × current value [mA]
327.675 % 65535 FFFF DIA Invalid value
ON at 55F1…FFFF
22.000 mA
110, 05 % 22001 55F1 22.000 mA
110.000 % 22000 55F0 DIA
Value above upper limit
ON at 5209…7FFF
22.000 mA
105.005 % 21001 5209 21.001 mA
105.00 % 21000 5208 output range overrun 21.000 mA
100.005 % 20001 4E21 20.001 mA
100.000 % 20000 4E20 nominal range 20.000 mA
40.00 % 8000 1F40 8.000 mA
20.00 % 4000 0FA0 4.000 mA
0.01 % 2 0002 0.002 mA
0.005 % 1 0001 0.001 mA
0.000 % 0 0000 0.000 mA
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