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STATus
The STATus subsystem reports the bit values of the Operation Status
Register. Only bit 8 in the Standard Operation Status Register is used to
notify that a scan is complete.
Subsystem Syntax STATus
:OPERation
:ENABle <
number>
:ENABle?
[:EVENt]?
The STATus system contains four registers, two of which are under IEEE
488.2 control. These are the Standard Event Status Register (
*ESE) and the
Status Byte Register (
*STB?). Refer to the appropriate mainframe or
command module operating manual for more information on these registers.
The two registers under Microwave Switch control are the Standard
Operation Status Register, and the Questionable Data/Signal Register. The
Questionable Data/Signal Register is not used in the Microwave Switch and
will not be discussed. The Standard Operation Status Register is discussed
below. The figure shown below illustrates the Status System Registers.
The various registers are set and queried using decimal weighted bit values.
The decimal equivalent for bits 0 to 15 is shown below.
Bit Number to Decimal Value
Bit Number 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Decimal Value 1 2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768
For example, sending a decimal value of 4608 will set bits 9 and 12 true (1).
62 HP E1368A/69A/70A Command Reference Chapter 4