I2C_PCF8574_write block
Short summary
Name |
I2C_PCF8574_write |
→POU type |
|
Category |
|
Graphical interface |
|
Available since |
|
Functionality
The block sets the outputs of PCF8574 (→I2C port expanders) to given values.
For more information on the PCF8574 chip see for example: http://www.nxp.com/documents/data_sheet/PCF8574.pdf (product specification by manufacturer NXP)
Inputs
|
Identifier |
Description |
|
Inputs: |
fd |
DINT |
the handle for the I2C device file opened by the I2C_Open block |
address |
INT |
the I2C address of the PCF8574 (port expander) |
|
pin_values |
ARRAY[0..7] OF BOOL |
the states of the PCF8574 outputs |
Input EN and output ENO are available when →calling the block. See "Execution control: EN, ENO" for information on input EN and output ENO.
Example for usage within ST-editor
At present, there is no example.
When creating your application within the ST-editor, enter a call of a block by typing the text as requested by the syntax or use Content Assist.