Remote Operation
*TST?, Self-Test Query
Description: This query causes an internal self-test and reports the result. If the AC source
completes the self-test without any detected errors, it returns a 0, otherwise it
returns a 1. Note that during the self-test caused by *TST, the output voltage
will reach 300V. Please disconnect any output load.
Query Syntax: *TST?
Parameters: None
Return Parameters: 0 | 1
Query Example: *TST? It causes a self-test and reports the result.
*WAI, Wait-to-continue
Description: This command prevents the AC source from executing any further command until
all pending operations are completed.
Syntax: *WAI
Parameters: None
6.7 Status Reporting
The AC source follows the status data structure and mechanism described in the IEEE 488.2
Standard Digital Interface for Programmable Instrumentation. Note that undefined bits of all
status registers are zero when they are read.
6.7.1 Questionable Status
The Questionable Status Registers record signals that indicate abnormal operation of the AC
source.
(1) Condition Register: It reflects the present state of TRUE (1) or FALSE (0) in its condition
bits. It is a register for reading only.
(2) Negative Transition (NTR) Filter: It allows the event bit to be set TRUE when the
associated condition changes from TRUE to FALSE. It is cleared at power-on or by
the STATus:PRESet command.
(3) Positive Transition (PTR) Filter: It allows the event bit to be set TRUE when the
associated condition changes from FALSE to TURE. All defined bits are set at power-on
or by the STATus:PRESet command.
(4) Event Register: It catches conditions that are passed by PTR and/or NTR filters. It is
cleared at power-on, or when it is read, or when the *CLS common command is received.
6-21
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