Kit simulator module for 8...
Kit simulator module for 8 digital signals (8-bit) for DIN-rail mounting setpoint adjuster for eight digital signals for connection to the digital input card.
All components including the PCB
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
For more information and program examples, refer to the product page I2C-Eingabekarte mit Optokoppler
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 |
Kit simulator module for 8 digital signals (8-bit) for DIN-rail mounting setpoint adjuster for eight digital signals for connection to the digital input card.
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