SYSTem:LOCK:RELease
Syntax
SYSTem:LOCK:RELease
Description
This command decrements the lock count by one and may release the I/O interface from which the com-
mand is executed.
Remarks
l When a lock is active, Bit 10 in the Standard Operation Register will be set (see STATus:OPERa-
tion:CONDition? command). When the lock is released on all I/O interfaces, this bit will be cleared.
Example
The following example decreases the lock count by one.
SYST:LOCK:REL
The following series of commands illustrates usage.
Initial State = unlocked, Count = 0
<FROM USB> SYST:LOCK:REQ? returns "1" (request successful)
State = locked, Count = 1
<FROM GPIB> SYST:LOCK:REQ? returns "0" because USB has lock
State = locked, Count = 1
<FROM USB> SYST:LOCK:REQ? returns "1" (request successful)
State = locked, Count = 2
<FROM USB> SYST:LOCK:REL
State = locked, Count = 1
<FROM USB> SYST:LOCK:REL
State = unlocked, Count = 0
Keysight 53220A/53230A Programmer's Reference 451
SYSTem:LOCK:RELease
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