Operation Registers - Isotech TTI 7 PLUS User Maintenance Manual/Handbook

*ESE <enable value>
Enables bits in the Standard Event Enable Register. The selected bits are then reported to the Status Byte.
*ESE?
Queries the Standard Event Enable Register. The instrument returns a decimal value which corresponds to the
binary-weighted sum of all bits set in the register.
*OPC
This command sets the instrument's 'Operation Complete Command State' active. When any 'in-progress' command
is completed, the state returns to idle and the Operation Complete bit (0) is set. The command should only be used
in conjunction with non-query commands and is only available for IEEE.
Example
Data logging can take an appreciable time to execute, so it is useful to program the instrument to generate a service
request on completion of the logging function. The following command sequence can be used:
*ESE 1
*SRE 32
*CLS
DATA:START
*OPC
Alternatively, the application programme may continuously poll the Operation Complete bit using *ESR?.

Operation Registers

Measuring (bit 4)
This bit is set when a new measurement starts and is cleared when complete. It corresponds to the BUSY legend on
the front panel display.
Measurement Available (bit 8)
This bit is set when a new measurement started by the INITiate command has completed. The bit is cleared when
the FETCh? command is used to transfer the value to the output buffer.
The following commands are used to access these registers:
STATus:OPERation:CONDition?
Queries the Operation Condition Register. The instrument returns a binary-weighted decimal value representing the
bits set in the condition register.
STATus:OPERation:EVENt?
Queries the Operation Event Register. The instrument returns a binary-weighted decimal value representing the bits
set in the event register.
STATus:OPERation:ENABle
Enables bits in the Operation Enable Register. The selected bits are then reported to the Status Byte.
STATus:OPERation:ENABle?
Queries the Operation Enable Register. The instrument returns a binary-weighted decimal value representing the
bits set in the enable register.
Enables Operation Complete to set the Standard Event bit
Enables Standard Event to trigger service request
Clears the Operation Complete bit
Initiates data logging
Sets RQS on completion of the log
<enable value
>
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TTI-7 Iss.02 – 06/11