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The Operation
Status Group
The Condition Register
15
The Transition Filter
Chapter 9
The Operation Status Group monitors current operating conditions within
the AFG. The specific conditions include: calibrating, sweeping, entering
the wait-for-arm state, and execution of the
Calibration, sweeping, waiting for an arm signal, and the
command are monitored with the following bits in the Condition Register. All
other bits are unused.
14
13
12
11
10
unused
CALibrating: Bit 0 is set (1) during calibration. The bit is cleared
–
(0) otherwise.
SWEeping: Bit 3 is set (1) while a frequency sweep or list is in
–
progress. The bit is cleared (0) when waveform generation is halted,
when frequency sweeping or lists are not selected, and at the end of
each sweep or list.
Waiting for ARM: Bit 6 is set (1) when the AFG enters the
–
wait-for-arm state. The bit is cleared (0) when a start arm is
received or when waveform generation is aborted.
INITiated: Bit 8 is set (1) when the
–
executed. The bit is cleared (0) when waveform generation is
complete and the AFG returns to the Idle state.
Reading the Condition Register
Bit settings in the Condition Register can be determined with the command:
STATus:OPERation:CONDition?
Bits 0, 3, 6, and 8 have corresponding decimal values of 1, 8, 64, and 256.
Reading the Condition Register does not affect the bit settings. The bits are
cleared following a reset (
The Transition Filter specifies which type of bit transition in the Condition
Register will set corresponding bits in the Event Register. Transition filter bits
may be set for positive transitions ( 0 to 1), or negative transitions (1 to 0). The
commands used to set the transitions are:
STATus:OPERation:NTRansition <
STATus:OPERation:PTRansition <
sets the negative transition. For each bit unmasked, a 1 to 0
NTRansition
transition of that bit in the Condition Register sets the associated bit in the
Event Register.
INITiate:IMMediate
9
8
7
6
5
INIT
ARM
unused
INITiate:IMMediate
*RST
).
unmask
unmask
command.
INITiate:IMMediate
4
3
2
1
0
SWE
unused
CAL
command is
>
>
AFG Status
435
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