All components required for the I2C output board including 8 power transistors BD135 (invers) or BD136 (normal)
Switching capacity max. 45V 1.5A
It can be connected up to 16 cards issued to the I2C bus. The following addresses are adjustable by jumpers:
PCF8574: 64, 66, 68, 70, 72, 74, 76, 78
PCF8574A: 112, 114, 116, 118, 120, 122, 126, 128
So you can control up to 128 outputs on these cards.
The board can be equipped with power transistors or with single-line relay either. or mixed 2 transistors and 6 relay or, as in Figure 4 transistors and 4 relay or ........
Dimensions of the circuit board 75x 80 mm
The board can be equipped with power transistors or with Single Line Relay either. or mixed transistors 2 and 6 relays or as in picture 4 transistors and 4 relay or ........
The port extensions PCF8574 or PCF8574 A have the disadvantage that they switch at power ON all outputs HIGH.
Only when transmitting data over the bus are transferred, the outputs switch correctly.
Inverted logic:
If this interferes with your application, the board can also be fitted with negative logic. The outputs or relays remain in power ON initially off. About the bus but the value must be transferred inverted.
Should, for example, will be the first output high must be 254 sent to the bus. The controller simply drag the value to be output by 255 from before transferring him.
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The power transistor switches in this case mass. The consumer is thus connected to the positive supply voltage (max. 40V). Who do not like switching the "Minus" the board should be equipped with relay! Then you can turn what you want plus, minus, AC |
Normal logic:
In this case, the outputs are "normal" addressed in BCD code. The outputs switch then corresponding to the transmitted bit pattern.
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The power transistor switches in this case the positive supply voltage The consumer is thus connected to ground. |
For more information and program examples, refer to the product page I2C-Ausgabekarte
| 1 | circuit board I2A-PL Tinned lead free |
| 8 | Resistor 47 kOhm |
| 8 | Resistor 270 Ohm |
| 8 | LED grün 3mm |
| 1 | terminal 4 pin |
| 2 | terminal 8 pin |
| 1 | Ceramic Capacitor 100 nF |
| 1 | PCF 8574 or PCF 8574A Please select PCF-Type |
| 1 | IC socket 16 pin |
| 3 | pin connectors 3 pol and Jumper |
| 8 | Transistor BC546 (norm.) or BC556 (inv.) |
| 8 | Resistor 4.7k Ohm |
| 8 | power transistors BD135 (invers) or BD136 (normally) Switching capacity max. 45V 1.5A |
Set I2C bus connector 5-pin Accessories for I2C bus modules I2EOK, I2AOK, I2AT, I2AI18 Not suitable for I2HE, I2AH, I2HAE, I2HAA ...
I2C digital output board without amplifiers If you want to have mixed the output stages ( eg 2 Ralais and 6 transistors)You can order the basic components here and the output stages separately below in the shop
Digital I2C output card with power transistors8-bit 5-24V for DIN rail With the I2C output card, 8 digital consumers can be switched.The power transistor BD676 can switch 40V 1A.
Digital I2C output card with optocouplers8-bit 5-24V for DIN rail With the I2C output card, 8 digital consumers can be switched.The output driver TBD62783APG switches a positive voltage up to 30V.
Kit I2C output card digital 8-bit 5-24V for DIN rail With the I2C output card 8 digital loads can be switched. The output driver turns UDN2981 a positive voltage up to 30V.
Digital I2C output card for AC voltage 24V AC / 1Awith optocoupler and triac 8-bit for DIN rail With the I2C output card, 8 digital AC power consumers can be switched.
I2C output board with relay output stages 8- bit digital All components required for the I2C output board including 8 single-line relay 5V with integr. Free-wheeling diode. Switching capacity max. 200V AC 15W
Relay amp to the above kit without amplifiers. Switching capacity max. 200V AC 15W
Set I2C connection cable 5pol Accessories for I2C bus modules I2EOK, I2AOK, I2AT, I2AIN18 Not suitable for I2HE, I2AH, I2HAE, I2HAA ...
Transistor power amp to the above kit without amplifiers. Switching capacity max. 45V 1.5A
