https://github.com/klauer/pypvserver
Python EPICS PV Server, based on pcaspy
https://github.com/klauer/pypvserver
Last synced: 3 months ago
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Python EPICS PV Server, based on pcaspy
- Host: GitHub
- URL: https://github.com/klauer/pypvserver
- Owner: klauer
- Created: 2015-11-14T15:47:03.000Z (over 9 years ago)
- Default Branch: master
- Last Pushed: 2016-03-01T21:02:24.000Z (over 9 years ago)
- Last Synced: 2025-01-17T16:51:57.340Z (5 months ago)
- Language: Python
- Size: 49.8 KB
- Stars: 2
- Watchers: 2
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
## pypvserver
Python EPICS PV Server, based on pcaspy
### Requires
* pcaspy >= 0.6.0
### Example
```bash
$ ipython
```
```python
In [1]: from pypvserver import (PypvServer, PyPV)
In [2]: server = PypvServer(prefix='PREFIX:')
In [3]: pv = PyPV('pv1', 123.0, server=server)
In [4]: pv
Out[5]: PyPV('pv1', value=123.0, alarm=0, severity=0)
# Tweak its value a bit...
In [6]: pv.put(1)
In [7]: pv.put(2)
In [8]: pv.put(3)
```
Here's what happens from the EPICS client (`camonitor`):
```sh
$ camonitor PREFIX:pv1
PREFIX:pv1 2016-01-25 13:48:51.112522 123
PREFIX:pv1 2016-01-25 13:49:12.286193 1
PREFIX:pv1 2016-01-25 13:49:13.714229 2
PREFIX:pv1 2016-01-25 13:49:14.761100 3
$ cainfo PREFIX:pv1
PREFIX:pv1
State: connected
Host: localhost:56144
Access: read, write
Native data type: DBF_DOUBLE
Request type: DBR_DOUBLE
Element count: 1
```