instrument that requested service. The contents of the Status Byte Register (STB) is
decided by the Service Request Enable Register (SRE), Event Status Register
(ESR), Event Status Enable Register (ESE) and the output buffer. These status
registers are discussed below
and summarized in following Table. Figure 7-1 shows
the relationship of these registers.
Register Read Command Write Command Enable Register
Status Byte
*STB? NONE SRE
Service Request Enable
*SRE? *SRE NONE
Event Status
*ESR? NONE ESE
Event Status Enable
*ESE? *ESE NONE
Figure 7-1. IEEE 488.2 Standard Status Structures
Note:
The buffer size of the Output Queue is just one.
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