Status - HP E1313A Manual

STATus

Subsystem Syntax
252 HP E1313/E1413 Command Reference
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The STATus subsystem communicates with the SCPI defined Operation and
Questionable Data Status Register sets. Each is comprised of a Condition Register,
a set of Positive and Negative Transition Filter Registers, an Event Register, and an
Enable Register. Condition Registers allow you to view the current real-time states
of their status signal inputs (signal states are not latched). The Positive and
Negative Transition Filter Registers allow you to control the polarity of change from
the Condition Registers that will set Event Register bits. Event Registers contain
latched representations of signal transition events from their Condition Register.
The HP E1413 has no programmable Transition Filter Registers, so any low-to-high
transition in a Condition Register will cause the corresponding bit in an Event
Register to be set to one. Querying an Event Register reads and then clears its
contents, making it ready to record further event transitions from its Condition
Register. Enable Registers are used to select which signals from an Event Register
will be logically ORed together to form a summary bit in the Status Byte Summary
Register. Setting a bit to one in an Enable Register enables the corresponding bit
from its Event Register.
STATus
:OPERation
:CONDition?
:ENABle <
:ENABle?
[:EVENt]?
:NTRansition <
:NTRansition?
:PTRansition <
:PTRansition?
:PRESet
:QUEStionable
:CONDition?
:ENABle <
:ENABle?
[:EVENt]?
:NTRansition <
:NTRansition?
:PTRansition <
:PTRansition?
The status system contains four status groups.
Operation Status Group
–
Questionable Data Group
–
Standard Event Group
–
Status Byte Group
–
enable_mask >
transition_mask
>
transition_mask
>
enable_mask >
transition_mask >
transition_mask
>
STATus
Chapter 5