Von Hamos 16 crystal
Warning: the controls for this device are a mess...
This device is also used at XPP. It has 2 main axis:
- Rotation: dumb motor
- Translation: Parker linear stage with its own Beckhoff PLC rail (yes...)
There are also controls for all single crystals, but we generally don't connect those.
Rotation stage control
This stage is controlled as a regular dumb motor. It can be controlled from the vonHamos - X & Rot button.
Translation stage controls
Because the device is shared with xpp, its IOC runs on the LFE subnet and can be found in the XRT IOCs. The IOC is ioc-hxx-vonhamos (alias von Hamos Y motion).
Also, the PLC does not have a license (why?) and is run with the trial period. Otherwise it will just boot in config mode and will not run. The trial expires after 7 days, and must then be refreshed. Note that if the PLC is left running, it'll keep working, even after 7 days, but it won't be possible to reboot it until refreshed. Refreshing the trial is done from the PLC programming node. Hopefully a license will be installed soon.
The screen for this stage is under VerySmall VonHamos? - Y in the user panel.
Small Von Hamos (Beckhoff PLC)
ID: plc-vhs-01
Beckhoff controller
May need to be put in running mode / re-configured
Big translation stages (smart motors)