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4–58 TM-XDOP-01XN
Status Register Commands
In the following sections <status-enable> is a value from 0 to 32767 representing
a 15-bit register mask.
SCPI Status Commands
Preset Status Configures the status data structures to ensure that certain events are reported at a
higher level through the status-reporting mechanism. These events are
summarized in the mandatory structures, the Operation Status Register, and
Questionable Status Register.
The PRESet command affects only the enable registers and the transition filter
registers of the status data structures. PRESet does not clear any of the event
registers or any item from the error/event queue. The *CLS command is used to
clear all event registers and queues in the device status-reporting mechanism.
For the device-dependent status data structures, the PRESet command sets the
enable register to all 1s and the transition filter register to report only positive
transitions. For the SCPI mandatory status data structures, the PRESet command
sets the transition filter registers to recognize only positive transitions and sets the
enable register to 0s. The following will not be affected by this command: Service
Request Enable Register, Parallel Poll Enable Register, the memory register
associated with the *SAV command, the power supply address, Output Queue,
and the power-on-status-clear flag setting.
SCPI command:
STATus[<channel>]:PRESet
Table 4-22
Preset Values of User Configurable Registers
Register Filter/Enable Preset Value
Operational Enable Register
Positive Transition Filter
Negative Transition Filter
0s
1s
0s
Questionable Enable Register
Positive Transition Filter
Negative Transition Filter
0s
1s
0s
All others Enable Register
Positive Transition Filter
Negative Transition Filter
1s
1s
0s
TM-XDOP-01XN.book Page 58 Monday, July 17, 2006 11:19 AM