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Description
Feature Description
As an instrument scientist, I would still like to be able to read the beamline pressures once communication with the TPG300s has been moved to a new PLC.
Explanation
Many PLCs in and around ISIS are now long obsolete and so there is a programme to upgrade them, starting with that for the MAPS vacuum system. The plan also includes the convergence on a common protocol, OPCUA, for which there is EPICS support.
This ticket will serve as a 'proof of concept' as the plan is to gradually upgrade other vacuum PLCs and read further values from them (c.f. RIKENFE vacuum system).
Additional Information
- The ISIS Electrical Controls Group have a spare OMRON PLC with which testing could be performed
- There is documentation and are examples of OPCUA usage on the GitHub site linked to above
- An additional IOC and OPI will need to be created
- No changes to the existing TPG300 IOC and OPI are required
See our Git Workflow.
Acceptance Criteria
- Original beamline pressure values are available as (new) PVs
- An OPI exists to display these values
- IBEX configurations, components and blocks are edited to reflect these changes
How to Review
To the reviewer: Make sure to update submodules!
Sprint Planning
- Should check with accelerator controls for commonality
Discussed planning 05/02/2025 00:07:00
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