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DDE
Device Dependent Error, bit 3. This event bit indicates that an error has occurred which is
neither a Command Error, a Query Error, nor an Execution Error. A Device-specific Error is
any executed device operation that did not properly complete due to some condition, such as
overload.
QYE
Query Error, bit 2. This event bit indicates that either:
1. an attempt is being made to read data from the Output Queue when no output is either
present or pending
2. or data in the Output Queue has been lost
OPC
Operation Complete, bit 0. This event bit is generated in response to the *OPC command. It
indicates that the device has completed all selected pending operations.
ESE Event Status Enable Register
The Event Status Enable Register allows one or more events in the Event Status Register to be
reflected in the ESB summary-message bit. This register is defined for 8 bits, each corresponding to
the bits in the Event Status Register. The Event Status Enable Register is read with the common
query *ESE?. Data is returned as a binary-weighted value. The Event Status Enable Register is
written to by the common command, *ESE. Sending the *ESE common command followed by a zero
clears the ESE. The Event Status Enable Register is cleared upon power-on.
Output Queue
The Output Queue stores response messages until they are read. The availability of output is
summarized by the MAV (message available) summary message. The MAV summary message is
used to synchronize information exchange with the controller. The Output Queue shall be a first in, first
out (FIFO) Queue. The Output Queue is cleared upon power-on.
Betriebsanleitung
OCM191 Isolation Tester - Kalibrator
49
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