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Additional Basics on Remote Control
R&S
®
NGP800
179User Manual 5601.5610.02 ─ 04
Event Status Register (ESR) and Event Status Enable Register (ESE)
The ESR is defined in IEEE 488.2. It can be compared with the EVENt part of an SCPI
register. The event status register can be read out using the command *ESR?. The
ESE corresponds to the ENABle part of an SCPI register. If a bit is set in the ESE and
the associated bit in the ESR changes from 0 to 1, the ESB bit in the STB is set. The
ESE register can be set using the command *ESE and read using the command
*ESE?.
STATus:OPERation Register
In the CONDition part, this register contains information on which actions the instru-
ment is being executing or, in the EVENt part, information on which actions the instru-
ment has executed since the last reading. It can be read using the commands
STATus:OPERation:CONDition? or STATus:OPERation[:EVENt]?.
Bit No. Meaning
0 Not used
1 to 3 Not used
4 MEASuring
This bit is set on event new measurement available.
5 to 9 Not used
10 Logging
This bit is set as long as "Logging" is enabled
11 Not used
12 Not used
13 to
14
Not used
15 This bit is always 0
STATus:QUEStionable Register
This register contains information about different states which can occur. It can be read
using the commands STATus:QUEStionable:CONDition? and
STATus:QUEStionable[:EVENt]?. See
Figure A-1.
Table A-6: Bits of the STATus:QUEStionable register
Bit No. Meaning
0 Voltage
This bit is set while the instrument is in constant current mode (CC). The voltage is regula-
ted and the current is constant.
1 Current
This bit is set while the instrument is in constant voltage mode (CV). The current is variable
and the voltage is constant.
2 Not used
Status Reporting System
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