I2C_open block
Short summary
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Name |
I2C_open |
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→POU type |
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Category |
more system blocks, blocks for I2C elements, block with internal error diagnostic |
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Graphical interface |
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Available since |
version 1.13.0 (for logi.CAD 3) and version 2.3.901 of logi.RTS |
This block is supported for Functionality
The block initializes a device file of the Linux "i2c-dev" driver for I/O operation.
For more information on the die "i2c-dev" Modules see for example: https://www.kernel.org/doc/Documentation/i2c/dev-interface
Inputs, return value
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Identifier |
Description |
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Inputs: |
bus_id |
INT |
the ID of the →I2C bus (0 = /dev/i2c-0, 1 = /dev/i2c-1, etc.) |
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Return value: |
– |
DINT |
returns the file descriptor for subsequent I2C I/O operations |
Input EN and output ENO are available when →calling the block. See "Execution control: EN, ENO" for information on input EN and output ENO.
See:
"Blocks for safe logic" whether this block is supported for developing safety-relevant applications.
"Highlighting safe logic in the FBD-editor" for the effects when using the block as a block for safe logic .
Internal error diagnostic for block
See "System_open block".
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.