User guide

117
VTB USER GUIDE
Open a configuration
The “+lib” button (see 109), gives the access to the library, where a particular configuration can be selected.
Every configuration will be displayed with its description, allowing to see the already configured objects or properties,
for ex.
After the configuration as been inserted in the project, it can be modified as required in the normal manner.
14.7 Note on “packed” PDOs
A particular case of PDOs are “packed” PDO.
This a useful manner to manage data useful for more than one node, interpolated quotas or output state for ex, as a
single PDO. It can be used only with RX PDOs (from master to slave).
As we know, the length of the PDOs data is 8 byte, but the various objects that can be exchanged inside it, have less
length, for ex interpolated quotas have 4 byte length, or Promax slaves output state is 1-byte long.
How can we fully use the entire PDO length, without any “hole” in it?
Using the packed PDO.
What does it means? Consider the three images below,
fig. 14.13: Insert from
library form