PowerMeasuringModule PMM
35,0(
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Revision 13 EN - 02/2023
Shutter is closed The shutter of the PMM is closed.
Shutter is moving The shutter of the PMM is moving.
Shutter time-out The shutter has moved but has not reached the desired position within 5 seconds.
This flag is deleted with the "Reset" command as well as a new "Open/Close"-shutter
command.
Shutter error angle
sensor
The angle sensor to determine the angle of the shutter is defective.
Tab. 11.5: Overview status
11.5 Commands
Commands are sent to the device via four command bits. However, only one bit may be activated and trans-
ferred at a time.
Start measurement The start measurement bit launches the new measurement cycle. The start command
is only issued if all status requirements are met. The instrument shows the incoming
command via the „acknowledge-bit“ as the current status.
Then, the „start-measurement-bit“ can be deactivated again.
Do open shutter Activating the „open-shutter-bit“ leads to the opening of the shutter. This function can
be observed via the status bits.
As soon as the shutter is open, the bit can be deactivated again.
Do close shutter Activating the „close-shutter-bit“ leads to the closure of the shutter. This function can
be observed via the status bits.
As soon as the shutter is closed, the bit can be deactivated again.
Do_reset Activating this bit will set the PMM to the initial state.
The “idle-bit” is activated.
Tab. 11.6: Overview commands
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