Kit I2C Input card 8 Bit

Kit I2C digital input board 8-bit with optocoupler and  latch

All components including the PCB

New product

19,50 € tax incl.

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Delivery time 3-5 working days germany / about 10 days E
urope
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Description:

The inputs are galvanically isolated by optocoupler 4-fold from the "rest of the world".
The adjustment to your input voltage is done using resistors that you can choose above.

The input cards have a memory for short input signals. A programmable logic device (GAL 20V8) stops short input signals firmly until they are picked up via the I2C bus from the PCF 8574. Via a jumper to the memory also turn "transparent" but.

The INT signal from the PCF 8574 signaled a change to the inputs with a low signal. This signal, we have performed an LED and separated by a transistor stage from other input cards.
The INT signals from multiple input cards can be just like the I2C signals SCL and SDA are connected in parallel. About our I2C-RS232 coupler you can check now if at a command card something has changed and only then read the cards one by one.

Size of the circuit board 75x 100 mm

Links:

For more information and program examples, refer to the product page  I2C-Eingabekarte mit Optokoppler

Downloads:

Data Sheet  Schematic Diagram

Partlist:

1     circuit board I2E-PL
8 Resistor for optocoupler  Please select a value
9 Resistor 1,5 kOhm
2 Resistor 4,7 kOhm
2 Resistor 10 kOhm
1 Resistor network 8 x 4,7 kOhm
8 LED-Low Current 3mm green
1 LED-Low Current 3mm red
1 Ceramic Capacitor 100 nF
1 terminal 5 pin
2 terminal 8 pin
2 terminal 2 pin
1 PCF 8574 or PCF 8574A Please select PCF-Type
1 IC socket 16 pin
1 GAL-20V8 programmed (I2E-GAL)
1 IC socket 24 pin
2 4fach optocoupler
2 IC socket 16 pin
4 pin connectors 3 pol and Jumper
2 Transistor BC546

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5 18,50 € Up to 5,00 €

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Kit I2C Input card 8 Bit

Kit I2C Input card 8 Bit

Kit I2C digital input board 8-bit with optocoupler and  latch

All components including the PCB

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