This module allows an EPICS IOC with Python Device Support to be run from within the Python interpreter. Records can be programmatically created and arbitrary Python code run to update them and respond to caputs. It supports cothread and asyncio for concurrency. PVs are served over Channel Access and PVAccess.
| PyPI | pip install softioc |
| Source code | https://github.com/DiamondLightSource/pythonSoftIOC |
| Documentation | https://DiamondLightSource.github.io/pythonSoftIOC |
| Changelog | https://github.com/DiamondLightSource/pythonSoftIOC/blob/master/CHANGELOG.rst |
A simple example of the use of this library:
# Import the basic framework components. from softioc import softioc, builder import cothread # Set the record prefix builder.SetDeviceName("MY-DEVICE-PREFIX") # Create some records ai = builder.aIn('AI', initial_value=5) ao = builder.aOut('AO', initial_value=12.45, on_update=lambda v: ai.set(v)) # Boilerplate get the IOC started builder.LoadDatabase() softioc.iocInit() # Start processes required to be run after iocInit def update(): while True: ai.set(ai.get() + 1) cothread.Sleep(1) cothread.Spawn(update) # Finally leave the IOC running with an interactive shell. softioc.interactive_ioc(globals())
See https://DiamondLightSource.github.io/pythonSoftIOC for more detailed documentation.