Configuring/Programming
10.4 Programming
SIMATIC PN/CAN LINK
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Operating Instructions, 03/2022, A5E39895388-AC
10.4
Programming
10.4.1
PLC tags
PLC tags are automatically created by the HSP during configuration of the PN/CAN LINK in the
TIA Portal; you can use these PLC tags in the S7 program to access the cyclic I/O image. This
means the parts of the I/O image allocated to the PN/CAN LINK can be accessed from the S7
program using logical names. The use of explicit addresses is therefore not required in the S7
program.
Note
As of TIA Portal V15, it is possible to switch automatic tag generation for I/O objects on and
off. Make sure that automatic tag generation is activated.
The setting option is available under "General > Generate PLC tags" after you have set the
CAN operating mode.
Note
To improve the performance, switch off the "Automatic generation of PLC tags for I/O objects"
when creating large configurations.
When configuration is complete, switch on the "Automatic generation of PLC tags for I/O
objects" to generate the PLC tags.
Содержание SIMATIC PN/CAN LINK
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