Quantum Data 881 User Manual page 600

*STB
Class
Description
Query syntax
Returns
Related commands
222 Appendix A Command Reference
STatus Byte
GPIB
Returns the current value of the Status Byte register. The value stored in the Status Byte
register is not affected by reading it.
*STB?
statusByte<NL>
Where statusByte is in integer NR1 form.
*SRE, *ESR?, *CLS