4.5 I/O Conversion Characteristics
4-37
0V to 10V DC input (14-bit mode only)
Conversion characteristic Correspondence table of A/D Conversion
values
Input voltage (V)
Processing if the range is exceeded
Input voltage (V)
0V or less (including
negative value)
0
10V or more 16000
(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.
0V to 5V DC input
Conversion characteristic
Correspondence table of A/D Conversion
values
Input voltage (V)
Processing if the range is exceeded
Input voltage (V)
Digital value
12-bit 14-bit
0V or less (including
negative value)
0 0
5V or more 4000 16000
(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.