Status Byte Register - Agilent Technologies 4349B Manual

Status Byte Register

The status byte register is composed of eight bits that summarize the overlaying status data
structure.
The status byte can be read using either
the contents of the register (equal to sum of the total bit weights of all the bit set to \1"). For
more information, see \To Report the Instrument's Status" in Chapter 4.
Bits are set to \1" and reset to \0".
Bit No. Bit Weight
7 128
6 64
5 32
4 16
3 8
2-0
5-34 GPIB Reference
3
Figure 5-3. Status byte Register
Table 5-2. Status Byte Assignments
Operation Status Register Summary Bit
Request Service Bit|This bit is set when the any enabled bit of the status
byte has been set, which indicates the 4349B has at least one reason for
requesting service.
Standard Event Status Register Summary Bit
MAV (Message Available) Bit|This bit is set whenever the 4349B has data
available in Output Queue, and reset when available data is read.
Questionable Status Register Summary Bit
always 0 (zero)
or , which return a decimal expression of
Description
resets this bit.
4349B