Creating Programs
4.5 I/O Conversion Characteristics
4.5.1 Input Conversion Characteristics (Voltage Range)
-10V to +10V DC input
Conversion characteristic Correspondence table of A/D Conversion
values
Input voltage (V)
If the input value is out of the range
Input voltage (V)
Digital value
12-bit 14-bit
-10V or less -2000 -8000
10V or more 2000 8000
(Note 1): In the analog input unit Ver.1.1 or earlier or the analog I/O unit, a digital conversion value equivalent to the
analog input of approx. 2 V is saved in the device (WX), for the channels to which no input is connected. The
analog input unit Ver.1.2 or later are equivalent to approx. 0V.
-5V to +5V DC input (14-bit mode only)
Conversion characteristic
Correspondence table of A/D Conversion
values
Input voltage (V)
If the input value is out of the range
Input voltage (V)
Digital value
14-bit
5V or more 8000
(Note 1): In the analog input unit Ver.1.1 or earlier or the analog I/O unit, a digital conversion value equivalent to the
analog input of approx. 2 V is saved in the device (WX), for the channels to which no input is connected. The
analog input unit Ver.1.2 or later are equivalent to approx. 0V.