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Inputs (A0 … Ax)

CONTROLLINO has many analog inputs that can be used an analog and digital input. This will be set in the user program.

Inputs as analog input

The data logging work with the internal A/D converter of the microcontroller and has a resolution of 10Bit and delivers the values 0 – 1023. CONTROLLINO internally uses an automatic voltage divider controlled over the supply voltage. Dependent of the supply voltage the divider is switched to the right value.

If you use a 12V supply voltage the measured value can be between 0-13,2V.

1 digit = 0,015V (15,0mV)

If you use a 24V supply voltage the measured value can be between 0-26,4V.

1 digit = 0,03V (30,0mV)

The scaling factor is:

@12V … 3,06

@24V … 6,14

INFO: all inputs are protected against electrostatic discharging and overvoltage.

Inputs as digital input

Every of the A0…Ax inputs can also be used as a digital input to measure a switching status. If a logic “1” is measured the corresponding LED Ax will be active. At a logic “0” the corresponding LED Ax will be off. This optical information can be used to get a quick overview about the status of the inputs. This can be very helpful when toing an error diagnostics or a programming stage.

The logic levels depending on the supply voltage are:

Logik supply voltage level

0 12V 0 .. 3,6V

1 12V 9 .. 13,2V

0 24V 0 .. 7,2V

1 24V 18 .. 26,4V

The maximum input current is < 3mA.

Digital Inputs (I..)

This inputs are only digital inputs. If a logic “1” is measured the corresponding LED Ax will be active. At a logic “0” the corresponding LED Ax will be off. This optical information can be used to get a quick overview about the status of the inputs. This can be very helpful when toing an error diagnostics or a programming stage.

The logic levels depending on the supply voltage are:

Logik supply voltage level

0 12V 0 .. 3,6V

1 12V 9 .. 13,2V

0 24V 0 .. 7,2V

1 24V 18 .. 26,4V

The maximum input current is < 3mA.

Interrupt Inputs (IN0 and IN1)

Additional to the normal analog and digital inputs, CONTROLLINO also has 2 special interrupt inputs. This inputs are capable of measure very fast and important switching operations. The electrical behavior is like at a normal digital input, but in the user program they can execute subroutines at the change of inputs level.

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