30 lines
1.1 KiB
Markdown
30 lines
1.1 KiB
Markdown
# sinqSPS
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A collection of standardised SPS databases (or "modules") for interacting with
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the control unit itself and other external hardware.
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This makes use of the
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[s7plcFW Epics driver](https://gitea.psi.ch/lin-epics-modules/sinqS7plcFW) for
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communication with the Siemens 7th Generation PLC via the Fetch-Write Protocol.
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# Shutter Module
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This script allows the shutter at the instrument to be opened and closed as
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well as providing access to many status bits and messages.
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```
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epicsEnvSet("INSTR", "SQ:INSTRUMENT:") # can also be set in runScript call
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require sinqSPS
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runScript("$(sinqSPS_DIR)shutter.cmd","SPS_IP=172.28.101.26,FETCH_DB=210")
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```
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The directly exposed database fields can be found in
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[shutter.substitutions](./templates/shutter.substitutions).
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A simplified status value and status message is created from these fields via
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the logic in [shutter.db](./db/shutter.db).
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The corresponding nicos device is located at
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[nicos\_sinq/devices/epics/shutter.py](https://gitea.psi.ch/lin-instrument-computers/Nicos/src/branch/release-3.12/nicos_sinq/devices/epics/shutter.py).
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