17-17
17 Analog Input/Output Option Board
CP2E CPU Unit Software User’s Manual(W614)
17-7 Analog I/O Option Board
17
17-7-2 Analog I/O Signal Ranges
The analog values depend on the I/O signal ranges, as shown in the following diagrams.
Note When the input exceeds the specified range, the A/D conversion data will be fixed at either the lower limit or
upper limit.
When the output exceeds the specified range, the output signal will be fixed at either the lower limit or upper
limit.
z 0 to 10 V
The 0 to 10 V range corresponds to the hexadecimal values 0000 to 0FA0 (0 to 4000). The entire
data range is 0000 to 0FFF (0 to 4095).
z 0 to 20 mA
The 0 to 20 mA range corresponds to the hexadecimal values 0000 to 07D0 (0 to 2000). The possi-
ble data range is 0000 to 0FFF (0 to 4095). But it is strongly suggested that the input current mustn’t
exceed 30 mA.
17-7-2 Analog I/O Signal Ranges
Analog Input Signal Ranges
Converted Data
Hexadecimal (Decimal)
10V 10.24V
0FA0(4000)
0FFF(4095)
0000(0)
0V
Converted Data
Hexadecimal (Decimal)
0mA
20mA
07D0(2000)
0000(0)