Omron CP1E CPU UNIT SOFTWARE - Page 266

15 Analog I/O Function
15-8
CP1E CPU Unit Software User’s Manual(W480)
 0 to 5 V Input
When the resolution is set to 1/6,000, the 0 to 5-V range corresponds to hexadecimal values 0000 to
1770 (0 to 6,000). The entire data range is FED4 to 189C (-300 to 6,300).
A negative voltage is expressed as a two’s complement.
 1 to 5 V Input
When the resolution is set to 1/6,000, the 1 to 5-V range corresponds to hexadecimal values 0000 to
1770 (0 to 6,000). The entire data range is FED4 to 189C (-300 to 6,300).
Inputs between 0.8 and 1 V are expressed as two’s complements. If the input falls below 0.8 V,
open-circuit detection will activate and converted data will be 8000.
 0 to 20 mA Inputs
When the resolution is set to 1/6,000, the 0 to 20-mA range corresponds to hexadecimal values
0000 to 1770 (0 to 6,000). The entire data range is FED4 to 189C (−300 to 6,300).
A negative voltage is expressed as a two’s complement.
0 V 5 V
5.25 V
−0.25 V
FED4 (−300)
189C (6300)
1770 (6000)
0000 (0)
Converted Data
Hexadecimal (Decimal)
1 V 5 V
5.2 V
0.8 V
FED4 (−300)
189C (6300)
1770 (6000)
0000 (0)
Converted Data
Hexadecimal (Decimal)
0 mA 20 mA
21 mA
−1 mA
FED4 (−300)
189C (6300)
1770 (6000)
0000 (0)
Converted Data
Hexadecimal (Decimal)