Function: The dialog is used to select a function block for I/O mapping. The function block should be mapped to the I/O channel selected on the “<device name> I/O Mapping” tab or to the object selected on the “<device name> IEC Objects” tab.
Call:
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“<device name> I/O Mapping” tab,
“Add FB for I/O Channel” command button
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“<device name> IEC Objects”,
“Add” command button
The dialog provides all function blocks from the active application and the libraries included in the project which fulfill the following:
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The function block has the
{attribute 'io_function_block'}attribute. -
The function block contains input or output parameters that match the channel type (input, output, data type) and has the
{attribute 'io_function_block_mapping'}attribute.
When a function block is selected which provides multiple matching parameters, only the first one is mapped automatically to the channel. The others can only be mapped manually on the “<device name> I/O Mapping” tab.
After the function block is mapped, the parameter of the function block instance is entered in the “Variable” column of the mapping table. Then the path is composed of the follows:
<application name>.<device channel name>_<FB name>_<incremented FB instance number>.<FB
parameter name>
Example: App1.Out_4_Int_myScale_Output_Int_1.iOutput for the iOutput parameter of the first inserted instance of the myScale_Output function block
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“Find” |
Input field for searching for function block names |
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“Type” |
Function blocks in the tree structure which match the channel type Nodes: application, library name(s) |
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“Documentation” |
Shows the available documentation for the library selected in the tree or the library block |
For more information, see: ⮫ “Attribute: io_function_block, io_function_block_mapping ”
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See also: ⮫ <device name> I/O Mapping