Keysight E4981A - Page 367

Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter 367
Status Reporting System
Status Register Structure
Table C-1 Status Bit Definitions of Status Byte (STB)
Bit
Position
Name Description
0 to 3 Not used Always 0
4 MAV (Message Available)
Set to “1” when the output queue contains
data; reset to “0” when all of the data has been
retrieved.
5
Standard Event Status
Register Summary
Set to “1” when one of the enabled bits in the
status event status register is set to “1.”
6
RQS (Request Status) bit
for SPOLL
MSS (Master Summary
Status) bit for *STB?
Set to “1” when any of the status byte register
bits enabled by the service request enable
register is set to “1”; reset to “0” when all of the
data has been retrieved through serial polling.
7
Operation Status Register
Summary
Set to “1” when one of the enabled bits in the
operational status register is set to “1.”