Beckhoff: Get TPY file from controller

[rerpha]

As a Beckhoff motion developer I would like to dynamically get the tpy file off the controller's filesystem rather than storing it in the config area. Simon has mentioned that it's possible to get the TPY file from the controller as it's stored in a specific area on the controller's file system

Acceptance Criteria

• [ ] TPY file is obtained on IOC startup rather than being stored on the instrument machine.

Extra Information

• We would have to think about how to mount this as a drive?
• The advantage to this is that IDD will not need to pass us a new TPY file if they change the code, we will just pick up whatever the latest version is
• Currently tcIOC generates the db in the same location as the tpy, we wouldn't want to do that in this case

[rerpha]

the TPY file lives on the controller at this filepath: C:\TwinCAT\3.1\Boot\Plc\ - it is called Port_852.tpy and this won't be changed. One consideration for this is that we may need to pass credentials through EPICS in order to mount the share/access it if this is even possible

[rerpha]

We would need to pass a controller address macro (in place of the tpy file one?) in order to do this, one way or another

[FreddieAkeroyd]

We could run a small IOC or other program on the beckhoff to serve the file, or serve the file (possibly compressed) via ADS

[rerpha]

We could run a small IOC or other program on the beckhoff to serve the file,

We would have to compile to arm64 , i think the plc machine is fairly limited on space too

[rerpha]

no longer using TPY file, closing