apstrim 1.0.1

Parameter and Object Serializer for EPICS, ADO or LITE

apstrim

Logger of Control System parameters and data objects. Analog of SDDS writer.

• Supported infrastructures: ADO, EPICS, LITE.
• Efficient binary serialization format.
• Like JSON. But it's faster and smaller.
• Numpy arrays supported.
• Optional online compression.
• Basic plotting of logged data.

Installation

Dependencies: msgpack, msgpack-numpy, caproto, pyqtgraph. All required packages will be installed using pip:

pip3 install apstrim

Examples

Serialization

:python -m apstrim -nEPICS -oMeanValue.aps testAPD:scope1:MeanValue_RBV
21-06-02 13:10:43 Logged 61 paragraphs, 1.36 KBytes
...

:python -m apstrim -nEPICS  --compress -oScope1_MeanValue.apsc testAPD:scope1:MeanValue_RBV
21-06-02 13:20:47 Logged 61 paragraphs, 1.058 KBytes
...

:python -m apstrim -nLITE liteHost:dev1:cycle
21-06-02 13:30:31 Logged 5776 paragraphs, 103.986 KBytes
...

:python -m apstrim -nLITE --compress liteHost:dev1:cycle
21-06-02 13:40:41 Logged 5767 paragraphs, 54.456 KBytes
...

:python -m apstrim -nLITE liteHost:dev1:cycle,y
pars: {'acnlin23:dev1:cycle': ['0'], 'acnlin23:dev1:y': ['1']}
21-06-02 13:50:14 Logged 5763 paragraphs, 46448.658 KBytes
...

Example of deserialization and plotting of the logged data files.

python -m apstrim.plot *.aps