Lambda SRS SR475, Руководство по эксплуатации

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2 – 8 Remote Operation
2.4.4 Utility commands
Reset
C
Performs a hard reboot of the shutter head. Upon restart the head
will initialize and attempt to move the blade to the state indicated by
the logic-level control input. The full startup sequence may take up
to one second.
Standby
K
Turns o
ff
the shutter motor and places the shutter head in the standby
state, as described in
§
1.1.4. The shutter blade position becomes
indeterminate. Once this mode is entered, the blade position will
remain indeterminate and unpowered until a hard reset, either with
command
C
or by removing power (
§
1.1.5).
Assert fault
O
This command simulates a “fatal” fault which will trip the shutter to
the standby mode. This function is provided as a utility for reliability
testing.
2.4.5 Shutter queries
State
S
Query the current position of the shutter blade. The returned value
may indicate that the shutter is open, closed, or indeterminate. The
shutter is said to be in an indeterminate position (i.e., not open or
closed) while in transit between open and closed, or when powered
o
ff
in standby mode (
§
1.1.4).
Result Meaning
1
Open
0
Closed
-1
Indeterminate
S
Example:
1
The returned value of 1 indicates that the shutter is presently open.
SR475 and SR476 Laser Shutters