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Chapter 7 Usage of Various Functions
7-52
5) Analog/Digital conversion characteristics
(1) Analog input characteristics
a) Voltage input
In voltage input, digital amount 0 is output by 0V input and 4,000 is output by 10V input. Therefore input 2.5mV equals
to digital amount 1, but value less than 2.5mV can’t be converted.
b) Current input
Current input 0mA becomes output 0, 10mA does 2000 and 20mA does 4000. therefore input 5 equals to digital
amount 1, but value less tan 5 can’t be converted. So abandon it.
Digital Output Value
Voltage Input
Digital Output Value
Analog Input Voltage
A/D Conversion Characteristics (Voltage Input)
Current Input
Digital Output Value
Analog Input Current
Digital Output Value
A/D Conversion Characteristics (Current Input 020 )