The Bricklet has an integrated edge counter and it can measure duty cycle, period, frequency and value per channel. The frequency can be as high as 4MHz.
The edge counter can count rising edges, falling edges or both. The direction of the count (up or down) is configurable. It is also possible to use the value of one channel as the direction (e.g. high = up, low = down) for another channel.
All 4 channels are galvanically isolated.
Example applications for the Bricklet are reading of a PWM signal and reading of sensors that have edge counts or frequency as output.
The Industrial Counter Bricklet has a 7 pole Bricklet connector and is connected to a Brick with a 7p-10p Bricklet cable.
Property Value Current Consumption 100mW (20mA at 5V) Input Type Four optocoupled inputs (including 2.7kΩ series resistor) Input Current Depending on input voltage, ca. 3.85mA/12V, ca. 8.3mA/24V Maximum Input Voltage 26V (DC) Low Level Voltage 0-2V High Level Voltage 10-26V Isolation 3750Vrms (optocoupler value) Minimum Input Frequency 0.03Hz Maximum Input Frequency 4Mhz Time resolution up to 10.4ns (Duty Cycle Prescaler set to 1) Frequency resolution up to 0.03Hz (Frequency Integration Time set to 32768ms) Dimensions (W x D x H) 40 x 40 x 11mm (1.57 x 1.57 x 0.43") Weight 8.4g
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