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https://github.com/wigging/beemer
Python package for working with EPICS process variables
https://github.com/wigging/beemer
epics-base epics-controls epics-ioc python
Last synced: about 1 month ago
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Python package for working with EPICS process variables
- Host: GitHub
- URL: https://github.com/wigging/beemer
- Owner: wigging
- Created: 2024-02-13T14:03:22.000Z (11 months ago)
- Default Branch: main
- Last Pushed: 2024-04-09T19:59:51.000Z (9 months ago)
- Last Synced: 2024-05-01T16:05:22.471Z (8 months ago)
- Topics: epics-base, epics-controls, epics-ioc, python
- Language: Python
- Homepage:
- Size: 11.7 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Beemer
Beemer is a Python package for working with process variables (PVs) from EPICS input/output controllers (IOCs). The PVs are exposed via the channel access (CA) protocol using the included EPICS Docker container or caproto's CA server. Examples of each approach are provided in this repository.
## Installation
Use conda to create a Python environment where beemer is installed in editable (developer) mode.
```
conda env create --file environment.yml
conda activate beemer
```
## Examples
The examples demonstrate two approaches of using beemer to access PVs. One approach uses softIoc from an EPICS Docker container as shown in the diagram below. See the `epics-base/Dockerfile` to build the Docker image and container.
```mermaid
flowchart LR
CaClient --> Docker
subgraph Docker
direction LR
EPICS --> PVs
end
```
The other approach uses caproto's CA server for the PVs as shown below.
```mermaid
flowchart LR
CaClient --> B["Caproto Server"] --> PVs
```
Both approaches can be implemented over HTTP using the `HttpClient` instead of the `CaClient`. See the comments in the examples for usage instructions.
## Further reading
See the links below for more information about EPICS and caproto.
- [EPICS GitHub](https://github.com/epics-base/epics-base)
- [EPICS website](https://epics-controls.org)
- [EPICS documentation](https://docs.epics-controls.org)
- [Caproto GitHub](https://github.com/caproto/caproto)
- [Caproto documentation](https://caproto.github.io/caproto/)