If the driver attempts to launch while the PTU is still completing its startup sequence, it crashes and does not restart. This can happen if the controlling computer and PTU are powered on at the same time.
Adding respawn="true" to the launch file allows the driver to restart successfully, though ideally the driver should wait until the PTU is finished moving so that it doesn't crash at all.
mikepurvis
commented
10 years ago
If the driver attempts to launch while the PTU is still completing its startup sequence, it crashes and does not restart. This can happen if the controlling computer and PTU are powered on at the same time.
Adding respawn="true" to the launch file allows the driver to restart successfully, though ideally the driver should wait until the PTU is finished moving so that it doesn't crash at all.