Omron CRT1 - 10-2009, Operation Manual

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309
Summary of the Analog Input Slave Units
Section 6-2
■
Input Range: 0 to 10 V
Voltage of 0 to 10V is converted to data from 0000 to 1770 Hex (0 to 6000).
The input data range for which conversion is possible is
–
0.5 to +10.5 V and
here the output data is FED4 to 189C Hex (
–
300 to +6300). When input data
is a negative voltage, it is expressed as the two's complement (hexadecimal)
and the output data for a disconnected line is the same as for an input of 0 V
(0000 Hex).
■
Input Range:
–
10 to 10 V
Voltage of
–
10 to +10 V is converted to data from F448 to 0BB8 Hex (
–
3000 to
+3000). The input data range for which conversion is possible is
–
11 to +11 V
and here the output data is F31C to 0CE4 Hex (
–
3300 to +3300). When input
data is a negative voltage, it is expressed as the two's complement (hexadec-
imal) and the output data for a disconnected line is the same as for an input of
0 V (0000 Hex).
189C (6300)
1770 (6000)
FED4 (
−
300)
0000 (0)
1 V
0.8 V
5 V 5.2 V
7FFF
0.76 V
(Disconnection detected below 0.76 V.)
Conversion data
Hexadecimal (decimal)
Voltage
Clamped above
5.2 V.
189C (6300)
1770 (6000)
0000 (0)
0 V
FED4 (
−
300)
−
0.5 V
10 V 10.5 V
Conversion data
Hexadecimal (decimal)
Voltage
0CE4 (3300)
0BB8 (3000)
F448 (
−
3000)
F31C (
−
3300)
0000 (0)
0 V
−
11 V
−
10 V
10 V 11 V
Conversion data
Hexadecimal (decimal)
Voltage