Agilent Technologies Agilent 86120C manual Standard Event Status register

Programming

Monitoring the Instrument

Table 3-7. Bits in Questionable Status Register

Bit	Definition
0, 1, and 2	not used
3	POWer - indicating that the instrument is measuring too high of a power.
3 through 8	not used
9	Maximum signals - indicating that the instrument has found the
	maximum number of signals.
10	Drift Reference - indicating that the number of reference signals is
	different from the current number of input signals.
11	Delta Reference - indicating that there is no delta reference signal.
12 through 13	not used
14	Command Warning - indicating that the instrument has received some
	extra unexpected parameters for one of the measurement functions.
15	not used

Standard Event Status register

The Standard Event Status Register monitors the following instrument status events:

•OPC - Operation Complete

•RQC - Request Control

•QYE - Query Error

•DDE - Device Dependent Error

•EXE - Execution Error

•CME - Command Error

•URQ - User Request

•PON - Power On

When one of these events occur, the event sets the corresponding bit in the register. If the bits are enabled in the Standard Event Status Enable Register, the bits set in this register generate a summary bit to set bit 5 (ESB) in the Status Byte Register.

The contents of the Standard Event Status Register can be read and the register cleared by sending the *ESR? query. The value returned is the total bit weights of all of the bits that are set at the present time.

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