Aim-TTI CPX400S, Instruction Manual

Page: 33 / 36

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*ESR? Returns the value in the Standard Event Status Register in <
NR
1> numeric
format. The register is then cleared. The response is <
NR
1><
RMT
>. See Status
Reporting section for details.
*IST? Returns ist local message as defined by IEEE Std. 488.2. The syntax of the
response is 0<
RMT
>, if the local message is false, or 1<
RMT
>, if the local
message is true.
*OPC
Sets the Operation Complete bit (bit 0) in the Standard Event Status Register.
This will happen immediately the command is executed because of the
sequential nature of all operations.
*OPC? Query Operation Complete status. The response is always 1<
RMT
> and will be
available immediately the command is executed because all commands are
sequential.
*PRE <
NRF
> Set the Parallel Poll Enable Register to the value <
NRF
>.
*PRE?
Returns the value in the Parallel Poll Enable Register in <
NR
1> numeric format.
The syntax of the response is <
NR
1><
RMT
>
QER? Query and clear Query Error Register. The response format is nr1<
RMT
>
*RST Resets the instrument to the remote control default settings with the exception
of all remote interface settings and Output state at power-on setting. (see
Remote Operation Defaults paragraph in the Remote Interface Operation
section)
*SRE <
NRF
> Set the Service Request Enable Register to <
NRF
>.
*SRE? Returns the value of the Service Request Enable Register in <
NR
1> numeric
format. The syntax of the response is<
NR
1><
RMT
>
*STB? Returns the value of the Status Byte Register in <
NR
1> numeric format. The
syntax of the response is<
NR
1><
RMT
>
*WAI Wait for Operation Complete true. As all commands are completely executed
before the next is started this command takes no additional action.
Interface Management Commands
LOCAL Go to local. This does not release any active interface lock so that the lock
remains with the selected interface when the next remote command is
received.
IFLOCK Request Instrument ‘lock’. This command requests exclusive access control of
the instrument. The response is ‘1’ is successful or ‘-1’ if the lock is un-
available either because it is already in use or the user has disabled this
interface from taking control using the web interface
IFLOCK? Query the status of the interface ‘lock’. The return value is ‘1’ if the lock is
owned by the requesting interface instance; ‘0’ if there is no active lock or ‘-1’ if
the lock is unavailable either because it is in use by another interface or the
user has disabled the interface from taking control via the web interface.
IFUNLOCK Release the ‘lock’ if possible. Returns ‘0’ if successful. If this command is
unsuccessful ‘-1’ is returned, 200 is placed in the Execution Error Register and
bit 4 of the Event Status Register is set indicating that you do not have the
authority to release the lock.
ADDRESS? Returns the bus address <
NR
1><
RMT
>. This number can be used to identify
the unit