Section 8 Status Structure
8-2
The status byte (STB) sent to the controller is specified by IEEE 488.1. The bits
of the status byte represent a status summary message, providing a summary of
the current contents of the data stored in a register or queue.
The following sections explain the status summary message bits, the status data
structure for generating these status summary message bits, and the technique of
synchronizing a device with the controller using the status messages.
These functions are used to control devices from an external controller via the
GPIB interface. These functions, except a few, can also be used to control de-
vices from an external controller via the RS 232C interface.