Analog Input Formats; Engineering Units - Advantech ADAM 4000 Series User Manual

Data Formats and I/O Ranges
B.1 Analog Input Formats
The ADAM analog input modules can be configured to transmit data to the
host in one of the following data formats:

-Engineering Units

-Percent of FSR
-Twos complement hexadecimal
-Ohms
B.1.1 Engineering Units
Data can be represented in engineering units by assigning bits 0 and 1 of
the data format/checksum/integration time parameter the value 00.
This format presents data in natural units such as degrees, volts, millivolts
and milliamps. The engineering format is readily parsed by the majority of
computer languages, because the total data string length, including sign,
digits and decimal point, does not exceed seven characters.
– 100 mV, – 150 mV, – 500 mV
– 1 V, – 2.5 V, – 5 V
Type J and T thermocouple
Type K, E, R, S and B thermocouple
Data is grouped into a plus (+) or minus (-) sign, followed by five decimal
digits and a decimal point. The input range which is employed determines
the resolution or the number of decimal places used as illustrated in the
following table:
B-2 ADAM 4000 Series User's Manual
Input Range
– 15 mV, – 50 mV
– 10 V
– 20 mA
Resolution
1 µV (three decimal places)
10 µV (two decimal places)
100 µV (four decimal places)
1 mV (three decimal places)
1 µA (three decimal places)
0.01 C (two decimal places)
0.01 C (one decimal place)