VTI Instruments Corp.
204 EX10xxA/RX1032/EX1044 Function Calls
vtex10xxA_lock
FUNCTION PROTOTYPE
ViStatus vtex10xxA_lock(ViSession vi);
FUNCTION PARAMETERS
vi = contains a session handle to the instrument. This handle is obtained by the function and remains valid until the
session is closed.
DATA ITEM RESET VALUE
Not applicable to this function.
DESCRIPTION
This function attempts to acquire a lock on the instrument. When locked, the EX10xxA will accept function calls
from only the host IP address that issued the lock command. A lock can only be acquired if the instrument is not
already locked by another user.
By design, the locking mechanism is able to be overridden by a secondary host that issues a vtex10xxA_break_lock
function. Thus, the lock provides a warning to other users that the unit is in a protected operation state, but not
absolute security.
The lock status of the instrument is unaffected by the vtex10xxA_reset function.
Self-calibration requires the acquisition of a lock prior to its initiation.
EXAMPLE
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