Ieee-488. 2 Status Description - Racal Instruments 1256 Manual

Publication No. 980855 Rev. A
IEEE-488. 2 Status
Description
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*TRG Send a trigger to the instrument over the bus
*SAV Store relay states in non-volatile memory
*RCL Recall relay states from non-volatile memory
*OPT? Read if any options are installed
These commands are described in greater detail in this section of
the manual.
The IEEE-488.2 Status Reporting Model is shown in Figure 5-1.
This figure shows how the status reporting data structures are
implemented and the commands used to set and read each of the
registers. While the GPIB operational mode of the 1256 is fully
compliant with this standard, it is impossible for the 1256, or any
instrument operating in the RS-232 operational mode for that
matter, to satisfy the IEEE status requirements in all respects. A
good example of non-compliance relates to the SRQ. SRQ is a
feature that does not exist in RS-232 communications.
1256 User Manual
SCPI Command Basics 5-7