Inputs
Analog Inputs Rievtech Micro PLCs are available with analog inputs too. PLC analog input interfaces are available for either 0-10VDC, 0-20mA or PT100. Analog inputs are normally used to connect to transducer outputs. Such transducers measure some physical parameter, such as pressure, temperature, liquid level, position, pH level, or other such continuously variable measurement. The transducer signal output should be connected to a signal input on the PLC analog input channel and the transducer return or ground reference line must be connected to the PLC common.
Some CPUs can be set to either analog or digital for use in the program. They will be recognized as analog inputs when the input terminal is connected with an analog function block, and they will be recognized as switching inputs when the input terminal is not connected with an analog function block.
Full range analog signals will convert to a value between 0 and 1000 (10 bits) for inputs on CPU and to a value between 0 and 512 (9 bit) for expansion modules.
Scale function in xLogicSoft can be used to automatically convert the signal value to meaningful data.
MIRCO PLC 0-10V Inputs
MIRCO PLC 0/4-20mA Inputs
Power Supply
Common
Common
+ _
Voltage Transmitter
Current Transmitter
ADC
ADC
Analog Input
Analog Input
ADC - Analog-to-Digital Converter
ADC - Analog-to-Digital Converter
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