Analog Inputs And Conversion Results - Omron SYSMAC CPM1 Operation Manual

I/O Wiring

6-4-2 Analog Inputs and Conversion Results

Analog Input vs.
Conversion Results
Input Word Results Data
108
When the range code is set in the output word, the analog inputs are automati-
cally converted to digital values and stored in the input words allocated to them.
The values are converted as shown in the following chart.
Analog input
10 V 5 V 20 mA
5 V 3 V 12 mA
0 V 1 V 4 mA
In the example shown in 6-4-1 Setting Example, analog input 1 is allocated IR
001 and analog input 2 is allocated IR 002. The results of digital conversion for
these inputs would be stored in these words in the following form.
15 14 13 12 11
Broken Wire Bit
0: No broken wire
1: Broken wire
Note The Broken Wire Bit will turn ON when the voltage drops below 1 V for a 1 to 5-V
input signal or below 4 mA for a 4 to 20-mA input signal.
00 80
Converted data
(Hexadecimal)
10 09 08 07 06
Not used (00)
Section
FF
05 04 03 02 01 00
Results of conversion
(00 to FF)
6-5