Omron CP1H CPU User Manual

326
Analog I/O (XA CPU Units) Section 5-5
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).
When the resolution is set to 1/12,000, the 0 to 20-mA range corresponds to
hexadecimal values 0000 to 2EE0 (0 to 12,000). The entire data range is
FDA8 to 3138 (−600 to 12,600).
A negative voltage is expressed as a two’s complement.
The following diagram shows conversion values for 1/6,000 resolution.
4 to 20 mA
When the resolution is set to 1/6,000, the 4- 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).
When the resolution is set to 1/12,000, the 4- to 20-mA range corresponds to
hexadecimal values 0000 to 2EE0 (0 to 12,000). The entire data range is
FDA8 to 3138 (−600 to 12,600).
Inputs between 3.2 and 4 mA are expressed as two’s complements. If the
input falls below 3.2 mA, open-circuit detection will activate and converted
data will be 8000.
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)

Omron CP1H CPU Specifications

General

Brand	Omron
Model	CP1H CPU
Category	Computer Hardware
Language	English