INFICON STM-100/MF Thin Film Deposition Monitor - Manual (Page 67)

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Command: V
Parameter: None
Description: Returns the crystal life number, in percent. A new crystal will return a number around
100 percent. The format is 000.0 .. 100.0
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Command: W
Parameter: None
Description: Returns the timer value. The format is PMM:SS where P is "+", "-", or ">". The "+"
indicates that the STM-100 / MF is counting up, the "-" that it is counting down, and
">" indicates that the timer has exceeded 99:59 (in the up direction).
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Command: X
Parameter: None
Description: Returns the thickness value that existed at the last shutter close command event.
This allows the reading to be captured when the shutter was closed. The format is
the same as the S command.
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Command: Y
Parameter: None
Description: Returns the time between the last Zero Thickness event and the last Shutter Close
event. Not the same as the process timer. The response uses the same format
as the W command except there is no "-" countdown prefix.
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Command: Z
Parameter: None
Description: Returns the rate measured at the Shutter Close event. This is useful to hold the last
rate reading before closing the shutter.
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Command: a
Parameter: None
Description: This command allows you to determine the occurrence of critical events (power loss,
brownout, and non-volatile memory failure). A single character is returned between
an "@" and a "G" (inclusive). The LS bit indicates (if 1) that a power up reset has
occurred since the last L command. The next more significant bit is set by a
brownout condition. The next bit indicates that the non-volatile memory was faulty
when the STM100 attempted to load the parameter data for operation, and that
default values are in use. The correct parameter information should be downloaded
or entered manually before continuing. These three bits remain set until an L
command acknowledges that the host computer is aware of the status, with two
exceptions. The brownout status bit will be cleared by subsequent power failures (it is
not stored in non-volatile memory). The parameter defaulted status bit will be cleared
by either keyboard or computer interface re-programming of any internal parameter
(density, z-factor, etc. ).
Get the Crystal Life
Value
Get the Timer Value
Get the Shutter Close
Event Thickness Log
Get the Shutter close
Time Log
Get the Log Event
Rate
Get the Power on
Status
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