Using The Status System - HP E1313A Manual

Using the Status System

Note
Questionable Data Group
Operation Status Group
122 Understanding the HP E1313/E1413
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The HP E1313/E1413's Status system allows you to quickly poll a single
register (the Status byte) to see if any internal condition needs attention.
Figure 4-5 shows that the three Status Groups (Operation Status,
Questionable Data, and the Standard Event Groups) and the Output Queue
all send summary information to the Status byte. By this method the Status
Byte can report many more events than its eight bits would otherwise allow.
Figure 4-6 shows the Status system in detail.
The C-SCPI program status.cs on your C-SCPI driver tape, the C and Visual
BASIC programs status.xx on the driver/example program disk show how to
use the status system.
Figure 4-5. Simplified Status System Diagram
Output
Queue
Status Byte
read with
*STB?
Standard Event Group
Chapter 4