Turbine control system

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SIGNAL OUTPUT: Output signal.
CO: CMD OPEN/ON – Drive command: Start/Activate.
CF: CMD CLOSE/OFF – Drive command: Stop/Deactivate.
ME: MSG DRIVE ERROR – Message indicating a drive error.
AVA: MSG DRIVE IS AVAILABLE – Message indicating that the drive is available.
LF: MSG LAST COMMAND FROM PROTECTION – Message showing the last command from the protection system.
LS: MSG LAST COMMAND FROM AUTOMATIC – Message showing the last command from the automatic system.
LL: MSG LAST COMMAND FROM LOCAL PANEL – Message showing the last command from the local panel.
LD: MSG LAST COMMAND FROM DCS – Message showing the last command from the DCS system.
TEM: LH MSG LAST COMMAND FROM HMI – Message showing the last command from the HMI.
V: MSG LAST COMMAND FROM VISUALISATION – Message showing the last command from the visualization system.

Could someone please explain what these terms such as cmd, drive, BEFEHL, ANTRIEB, AUF, EIN, ZU, AUS, msg, AVAILABLE, MELDUNG, SSTÖRUNG, VERFÜGBAR, COMMAND, LETZTER BEFEHL, VOM, SCHUTZ, VORORT, LEITSYS, TEM, VON, VISUALISATION mean? It would be best if it could be explained in its entirety. Thank you so much, I’m extremely grateful:):):)