User guide

111
VTB USER GUIDE
The tree structure displays the composition of the configured CanOpen net.
The root it's the project name and every branch represents a node.
In example, taken from a real configuration, we have:
• NGM13 it's the slave/node type;
• node id it's 2;
After, there is a very useful function: configuration time-out (see 111).
Then we can see the defined structure of the device we are using, taken from its EDS file.
Here we have a device that have four TX (transmit) and four RX (receive) PDO.
The direction of the communication is define from the slave point of view, means that TX goes from slave to master
while RX from master to slave.
Every PDO is showed with its active mode (see 112).
The last information we can see, are parameters that the function will set after making the slave configuration.
Configuration Time-out
In normal situations, when the machine starts, it's usual to have the master CNC that makes initialization functions in a
very short time, like the NG35 for ex., while one or more slaves starts in a longer time, like drives.
Promax system makes the net configuration as the first initialization operation, then in this case could be possible that
a device will be not configured, cause it's not ready to accept master instructions. Therefore the device will not be able
to exchange PDO informations, like interpolated target quotas for ex.
How can we avoid this situation?
With the Configuration time-out. Using this strategy, when the master try to set the slave and the slave doesn't answer,
it will try once again after a little while, then can try again and again...
How many times the master must try to reach the slave and how many time have to wait from one and another try?
These are the data that are closed inside the round parenthesis: making a double-click, will open a form, where can be
setted in the right way.
“Numero Ripetizioni” Repeat Number, are the times that the master will try to reach the slave.
“Tempo per ripetizioni” Time for repeat, expressed in ms, is the time between two repetitions.
In the example showed, the master will try to reach the slave (node 3) 5 times, wait 1000ms (1sec) every time. It means
that the slave must have a start time, less then 5 sec.