Appendix 4 I/O Conversion Characteristics Of D/A Conversion - Mitsubishi Electric NZ2GFCE-60DAV8 User Manual

Appendix 4
The I/O conversion characteristics of D/A conversion are expressed by the slope of the straight line connecting the offset
value and the gain value, both of which are used when a digital value written from the CPU module is converted to the
corresponding analog output value (voltage or current).
Offset value
An analog output value (voltage or current) corresponding to the digital value 0 under the condition that the scaling function
and the shift function are not used.
Gain value
An analog output value (voltage or current) corresponding to the following digital value under the condition that the scaling
function and the shift function are not used.
• 12000 (When the output range is set to 0 to 5V, 1 to 5V, 0 to 20mA, 4 to 20mA)
• 16000 (When the output range is set to -10 to 10V)
Voltage output characteristics
The following graph shows the voltage output characteristics.
V
10
5
1
0
-5
-10
-16000
-16384
digit: Digital input value
V: Analog output value (V)
(a) Analog output practical range
No. Output range setting
(1) -10 to 10V
(2) 0 to 5V
(3) 1 to 5V
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I/O Conversion Characteristics of D/A
Conversion
(3)
-8000 0
-288
Offset value
0V
0V
1V
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(1)
(2)
8000 12000 16000
12287 16383
Gain value Digital value
10V -16000 to 16000
5V 0 to 12000
5V

Appendix 4 I/O Conversion Characteristics of D/A Conversion

(a)
digit
Maximum resolution
0.625mV
0.416mV
0.333mV
A
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