The I2C input module can be used to read 8 digital signals from 2.5V to 30V via the I2C bus.
The inputs are galvanically isolated with optocouplers
With the I2C input module, 8 digital signals, e.g. Of switches or sensors.
The signal states are indicated on 8 low-current LEDs, the HIGH level is detected between 2.5 and 30 V depending on the used resistor network.
If a signal is changed at an input, this is indicated by a red LED and the INT signal is pulled to LOW.
The I2C modem recognizes this signal change and can also automatically query all input cards.
Dimension of the circuit board 42 mm x 63 mm
The input voltage range of the card can be adapted using the resistance network RBV.
Uin: 2,5 - 13V 1,5 kOhm (Please order separately! Article I2EOK-RV)
Uin: 10 - 24V 4,7 kOhm (Standard, Liegt dem Bausatz bei)
Uin: 12 - 30V 10 kOhm (Please order separately! Article I2EOK-RV)
| 1 | circuit board IEOK_LP lead-free tinned with solder resist |
| 1 | Resistor 1,5 kOhm |
| 2 | Resistor 4,7 kOhm |
| 2 | Resistor 10 kOhm |
| 1 | Resistor network RNV Uin: 10 - 24V 4,7 kW |
| 1 | Resistor network 8x 1,5k |
| 1 | Resistor network 8x 4,7k |
| 8 | LED 3mm 2mA green |
| 1 | LED 3mm 2mA red |
| 1 | Ceramic Capacitor 100 nF |
| 2 | NPN-Transistor BC546A |
| 1 | PCF8574P oder PCF8574A + IC socket 16 pin |
| 2 | Opto coupler TLP293-4 soldered |
| 3 | pin connectors 3 pol and Jumper |
| 1 | terminal 5 pol. |
| 1 | terminal 10 pol. |
Manufacturer information
Responsible person for the EU
Horter & Kalb
Jürgen Horter
Klinikumallee 23
)5445 Bayreuth
mail@horter.de
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