Agilent Technologies 4339B, Operation Manual

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Status Reporting Structure 4339B
Standard Event Status Register
The Standard Event Status Register is frequently used and is one of the simplest. Y ou can
program it using GPIB common commands , *ESE and *ESR? . Refer to *ESE command and
*ESR? command in \Command Reference ".
Figure 5-4. Standard Event Status Register
T able 5-3. Standard Event Status Register Assignments
Bit No . Bit W eight Description
7 128 P ower-On Bit | This bit is set when the 4339B has been turned OFF and
then ON since the last time this register was read.
6 always 0 (zero)
5 32 Command Error Bit | This bit is set if the following command errors
occur .
An IEEE 488.2 syntax error occurred.
The 4339B received a Group Execute Trigger (get ) inside a program
message .
4 16 Execution Error Bit | This bit is set when a parameter of a GPIB
command was outside of its legal input range or was otherwise
inconsistent with the 4339B's capabilities .
3 8 Device-Dependent Error Bit | This bit is set when so many errors have
occurred that the error queue is full.
2 4 Query Error Bit | This bit is set when reading data from the output
buer and no data was present, or when the data was lost.
1 always 0 (zero)
0 1 Operation Complete Bit | This bit is set when the 4339B has completed
all selected pending operations before sending the *OPC command.
5-42 GPIB Reference