IRIS: Monitor TPG26x (ISIS Vacuum System)

[kjwoodsISIS]

As an IRIS instrument scientist, I want to be able to monitor the TPG26x (ISIS Vacuum System), so that I can view its current status.

Acceptance Criteria

1. I can view the PVs which show current status of the TPG26x.
2. I can view current status of the TPG26x in the instrument GUI.

Notes

1. The TPG26x on IRIS is not connected to a PLC, we connect directly to it.
2. There are two aspects to this story:
   1. Create an IOC to serve up the PVs
   2. Create a OPI to display the PVs in the instrument GUI
      In ticket LARMOR: Monitor TPG300 ISIS Vacuum System #216 we created an IOC & OPI for a TPG300. We should check whether we can adapt it.

[kjwoodsISIS]

There are links to the Pfeiffer web-site here: https://github.com/ISISComputingGroup/IBEX/wiki/IRIS-Instrument-Details#notePfeiffer

[kjwoodsISIS]

When you pick up this story, please take a few minutes to estimate the story-points.

[IsabellaRey]

Done first review. Fixed needed as listed in EPICS-ioc pull request

[IsabellaRey]

This ticket is ready to go. I have merged the EPICS-related branches, just waiting for Jenkins to build the latest GUI pull request, then will move as review complete.

[John-Holt-Tessella]

Last change ISISComputingGroup/EPICS-TPG#2

[IsabellaRey]

Merged the last change in the support module and fixed errors from the auto-merge of master into the GUI branch. Still waiting for Jenkins to pass the GUI PR, so I can merge and close this ticket